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Freebsd : Security Vulnerabilities (CVSS score between 7 and 7.99)

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# CVE ID CWE ID # of Exploits Vulnerability Type(s) Publish Date Update Date Score Gained Access Level Access Complexity Authentication Conf. Integ. Avail.
1 CVE-2021-29631 908 Exec Code Mem. Corr. 2021-08-30 2021-09-23
7.2
None Local Low Not required Complete Complete Complete
In FreeBSD 13.0-STABLE before n246941-20f96f215562, 12.2-STABLE before r370400, 11.4-STABLE before r370399, 13.0-RELEASE before p4, 12.2-RELEASE before p10, and 11.4-RELEASE before p13, certain VirtIO-based device models in bhyve failed to handle errors when fetching I/O descriptors. A malicious guest may cause the device model to operate on uninitialized I/O vectors leading to memory corruption, crashing of the bhyve process, and possibly arbitrary code execution in the bhyve process.
2 CVE-2021-29630 787 Exec Code 2021-08-30 2021-09-23
7.6
None Remote High Not required Complete Complete Complete
In FreeBSD 13.0-STABLE before n246938-0729ba2f49c9, 12.2-STABLE before r370383, 11.4-STABLE before r370381, 13.0-RELEASE before p4, 12.2-RELEASE before p10, and 11.4-RELEASE before p13, the ggatec daemon does not validate the size of a response before writing it to a fixed-sized buffer allowing a malicious attacker in a privileged network position to overwrite the stack of ggatec and potentially execute arbitrary code.
3 CVE-2021-29627 415 2021-04-07 2021-04-23
7.2
None Local Low Not required Complete Complete Complete
In FreeBSD 13.0-STABLE before n245050, 12.2-STABLE before r369525, 13.0-RC4 before p0, and 12.2-RELEASE before p6, listening socket accept filters implementing the accf_create callback incorrectly freed a process supplied argument string. Additional operations on the socket can lead to a double free or use after free.
4 CVE-2020-24718 863 +Priv 2020-09-25 2021-07-21
7.2
None Local Low Not required Complete Complete Complete
bhyve, as used in FreeBSD through 12.1 and illumos (e.g., OmniOS CE through r151034 and OpenIndiana through Hipster 2020.04), does not properly restrict VMCS and VMCB read/write operations, as demonstrated by a root user in a container on an Intel system, who can gain privileges by modifying VMCS_HOST_RIP.
5 CVE-2020-10565 269 Exec Code 2020-03-14 2021-07-21
7.2
None Local Low Not required Complete Complete Complete
grub2-bhyve, as used in FreeBSD bhyve before revision 525916 2020-02-12, does not validate the address provided as part of a memrw command (read_* or write_*) by a guest through a grub2.cfg file. This allows an untrusted guest to perform arbitrary read or write operations in the context of the grub-bhyve process, resulting in code execution as root on the host OS.
6 CVE-2020-7467 269 2021-03-26 2021-04-01
7.2
None Local Low Not required Complete Complete Complete
In FreeBSD 12.2-STABLE before r365767, 11.4-STABLE before r365769, 12.1-RELEASE before p10, 11.4-RELEASE before p4 and 11.3-RELEASE before p14 a number of AMD virtualization instructions operate on host physical addresses, are not subject to nested page table translation, and guest use of these instructions was not trapped.
7 CVE-2020-7461 787 Exec Code Overflow 2021-03-26 2021-09-16
7.5
None Remote Low Not required Partial Partial Partial
In FreeBSD 12.1-STABLE before r365010, 11.4-STABLE before r365011, 12.1-RELEASE before p9, 11.4-RELEASE before p3, and 11.3-RELEASE before p13, dhclient(8) fails to handle certain malformed input related to handling of DHCP option 119 resulting a heap overflow. The heap overflow could in principle be exploited to achieve remote code execution. The affected process runs with reduced privileges in a Capsicum sandbox, limiting the immediate impact of an exploit.
8 CVE-2020-7458 787 Exec Code 2020-07-09 2020-07-24
7.5
None Remote Low Not required Partial Partial Partial
In FreeBSD 12.1-STABLE before r362281, 11.4-STABLE before r362281, and 11.4-RELEASE before p1, long values in the user-controlled PATH environment variable cause posix_spawnp to write beyond the end of the heap allocated stack possibly leading to arbitrary code execution.
9 CVE-2020-7456 119 Exec Code Overflow 2020-06-09 2020-07-07
7.2
None Local Low Not required Complete Complete Complete
In FreeBSD 12.1-STABLE before r361918, 12.1-RELEASE before p6, 11.4-STABLE before r361919, 11.3-RELEASE before p10, and 11.4-RC2 before p1, an invalid memory location may be used for HID items if the push/pop level is not restored within the processing of that HID item allowing an attacker with physical access to a USB port to be able to use a specially crafted USB device to gain kernel or user-space code execution.
10 CVE-2020-7454 20 2020-05-13 2021-07-21
7.5
None Remote Low Not required Partial Partial Partial
In FreeBSD 12.1-STABLE before r360971, 12.1-RELEASE before p5, 11.4-STABLE before r360971, 11.4-BETA1 before p1 and 11.3-RELEASE before p9, libalias does not properly validate packet length resulting in modules causing an out of bounds read/write condition if no checking was built into the module.
11 CVE-2020-7450 787 Exec Code Overflow 2020-02-18 2020-03-05
7.5
None Remote Low Not required Partial Partial Partial
In FreeBSD 12.1-STABLE before r357213, 12.1-RELEASE before 12.1-RELEASE-p2, 12.0-RELEASE before 12.0-RELEASE-p13, 11.3-STABLE before r357214, and 11.3-RELEASE before 11.3-RELEASE-p6, URL handling in libfetch with URLs containing username and/or password components is vulnerable to a heap buffer overflow allowing program misbehavior or malicious code execution.
12 CVE-2019-15880 119 Overflow 2020-05-13 2021-07-21
7.5
None Remote Low Not required Partial Partial Partial
In FreeBSD 12.1-STABLE before r356911, and 12.1-RELEASE before p5, insufficient checking in the cryptodev module allocated the size of a kernel buffer based on a user-supplied length allowing an unprivileged process to trigger a kernel panic.
13 CVE-2019-15874 125 2020-04-29 2021-07-21
7.5
None Remote Low Not required Partial Partial Partial
In FreeBSD 12.1-STABLE before r356035, 12.1-RELEASE before 12.1-RELEASE-p4, 11.3-STABLE before r356036, and 11.3-RELEASE before 11.3-RELEASE-p8, incomplete packet data validation may result in memory access after it has been freed leading to a kernel panic or other unpredictable results.
14 CVE-2019-12900 787 2019-06-19 2021-09-14
7.5
None Remote Low Not required Partial Partial Partial
BZ2_decompress in decompress.c in bzip2 through 1.0.6 has an out-of-bounds write when there are many selectors.
15 CVE-2019-5614 125 2020-04-29 2021-07-21
7.5
None Remote Low Not required Partial Partial Partial
In FreeBSD 12.1-STABLE before r356035, 12.1-RELEASE before 12.1-RELEASE-p4, 11.3-STABLE before r356036, and 11.3-RELEASE before 11.3-RELEASE-p8, incomplete packet data validation may result in accessing out-of-bounds memory leading to a kernel panic or other unpredictable results.
16 CVE-2019-5613 345 2020-02-18 2020-03-05
7.5
None Remote Low Not required Partial Partial Partial
In FreeBSD 12.0-RELEASE before 12.0-RELEASE-p13, a missing check in the ipsec packet processor allows reinjection of an old packet to be accepted by the ipsec endpoint. Depending on the higher-level protocol in use over ipsec, this could allow an action to be repeated.
17 CVE-2019-5612 362 2019-08-30 2020-08-24
7.8
None Remote Low Not required None None Complete
In FreeBSD 12.0-STABLE before r351264, 12.0-RELEASE before 12.0-RELEASE-p10, 11.3-STABLE before r351265, 11.3-RELEASE before 11.3-RELEASE-p3, and 11.2-RELEASE before 11.2-RELEASE-p14, the kernel driver for /dev/midistat implements a read handler that is not thread-safe. A multi-threaded program can exploit races in the handler to copy out kernel memory outside the boundaries of midistat's data buffer.
18 CVE-2019-5611 20 DoS 2019-08-30 2019-09-10
7.8
None Remote Low Not required None None Complete
In FreeBSD 12.0-STABLE before r350828, 12.0-RELEASE before 12.0-RELEASE-p10, 11.3-STABLE before r350829, 11.3-RELEASE before 11.3-RELEASE-p3, and 11.2-RELEASE before 11.2-RELEASE-p14, a missing check in the function to arrange data in a chain of mbufs could cause data returned not to be contiguous. Extra checks in the IPv6 stack could catch the error condition and trigger a kernel panic, leading to a remote denial of service.
19 CVE-2019-5608 125 2019-08-30 2019-09-10
7.5
None Remote Low Not required Partial Partial Partial
In FreeBSD 12.0-STABLE before r350648, 12.0-RELEASE before 12.0-RELEASE-p9, 11.3-STABLE before r350650, 11.3-RELEASE before 11.3-RELEASE-p2, and 11.2-RELEASE before 11.2-RELEASE-p13, the ICMPv6 input path incorrectly handles cases where an MLDv2 listener query packet is internally fragmented across multiple mbufs. A remote attacker may be able to cause an out-of-bounds read or write that may cause the kernel to attempt to access an unmapped page and subsequently panic.
20 CVE-2019-5607 682 +Priv 2019-07-26 2020-08-24
7.2
None Local Low Not required Complete Complete Complete
In FreeBSD 12.0-STABLE before r350222, 12.0-RELEASE before 12.0-RELEASE-p8, 11.3-STABLE before r350223, 11.3-RELEASE before 11.3-RELEASE-p1, and 11.2-RELEASE before 11.2-RELEASE-p12, rights transmitted over a domain socket did not properly release a reference on transmission error allowing a malicious user to cause the reference counter to wrap, forcing a free event. This could allow a malicious local user to gain root privileges or escape from a jail.
21 CVE-2019-5606 416 +Priv 2019-07-26 2019-08-14
7.2
None Local Low Not required Complete Complete Complete
In FreeBSD 12.0-STABLE before r349805, 12.0-RELEASE before 12.0-RELEASE-p8, 11.3-STABLE before r349806, 11.3-RELEASE before 11.3-RELEASE-p1, and 11.2-RELEASE before 11.2-RELEASE-p12, code which handles close of a descriptor created by posix_openpt fails to undo a signal configuration. This causes an incorrect signal to be raised leading to a write after free of kernel memory allowing a malicious user to gain root privileges or escape a jail.
22 CVE-2019-5603 404 Overflow 2019-07-26 2020-08-24
7.2
None Local Low Not required Complete Complete Complete
In FreeBSD 12.0-STABLE before r350261, 12.0-RELEASE before 12.0-RELEASE-p8, 11.3-STABLE before r350263, 11.3-RELEASE before 11.3-RELEASE-p1, and 11.2-RELEASE before 11.2-RELEASE-p12, system calls operating on file descriptors as part of mqueuefs did not properly release the reference allowing a malicious user to overflow the counter allowing access to files, directories, and sockets opened by processes owned by other users.
23 CVE-2019-5600 787 DoS Exec Code 2019-07-03 2020-08-24
7.5
None Remote Low Not required Partial Partial Partial
In FreeBSD 12.0-STABLE before r349622, 12.0-RELEASE before 12.0-RELEASE-p7, 11.3-PRERELEASE before r349624, 11.3-RC3 before 11.3-RC3-p1, and 11.2-RELEASE before 11.2-RELEASE-p11, a bug in iconv implementation may allow an attacker to write past the end of an output buffer. Depending on the implementation, an attacker may be able to create a denial of service, provoke incorrect program behavior, or induce a remote code execution.
24 CVE-2019-5599 770 DoS 2019-07-02 2020-08-24
7.8
None Remote Low Not required None None Complete
In FreeBSD 12.0-STABLE before r349197 and 12.0-RELEASE before 12.0-RELEASE-p6, a bug in the non-default RACK TCP stack can allow an attacker to cause several linked lists to grow unbounded and cause an expensive list traversal on every packet being processed, leading to resource exhaustion and a denial of service.
25 CVE-2019-5596 +Priv 2019-02-12 2020-08-24
7.2
None Local Low Not required Complete Complete Complete
In FreeBSD 11.2-STABLE after r338618 and before r343786, 12.0-STABLE before r343781, and 12.0-RELEASE before 12.0-RELEASE-p3, a bug in the reference count implementation for UNIX domain sockets can cause a file structure to be incorrectly released potentially allowing a malicious local user to gain root privileges or escape from a jail.
26 CVE-2018-17161 119 DoS Exec Code Overflow 2019-01-03 2019-10-03
7.5
None Remote Low Not required Partial Partial Partial
In FreeBSD before 11.2-STABLE(r348229), 11.2-RELEASE-p7, 12.0-STABLE(r342228), and 12.0-RELEASE-p1, insufficient validation of network-provided data in bootpd may make it possible for a malicious attacker to craft a bootp packet which could cause a stack buffer overflow. It is possible that the buffer overflow could lead to a Denial of Service or remote code execution.
27 CVE-2018-17159 400 2018-12-04 2018-12-31
7.8
None Remote Low Not required None None Complete
In FreeBSD before 11.2-STABLE(r340854) and 11.2-RELEASE-p5, the NFS server lacks a bounds check in the READDIRPLUS NFS request. Unprivileged remote users with access to the NFS server can cause a resource exhaustion by forcing the server to allocate an arbitrarily large memory allocation.
28 CVE-2018-17158 190 Overflow 2018-12-04 2018-12-31
7.8
None Remote Low Not required None None Complete
In FreeBSD before 11.2-STABLE(r340854) and 11.2-RELEASE-p5, an integer overflow error can occur when handling the client address length field in an NFSv4 request. Unprivileged remote users with access to the NFS server can crash the system by sending a specially crafted NFSv4 request.
29 CVE-2018-8897 362 2018-05-08 2019-10-03
7.2
None Local Low Not required Complete Complete Complete
A statement in the System Programming Guide of the Intel 64 and IA-32 Architectures Software Developer's Manual (SDM) was mishandled in the development of some or all operating-system kernels, resulting in unexpected behavior for #DB exceptions that are deferred by MOV SS or POP SS, as demonstrated by (for example) privilege escalation in Windows, macOS, some Xen configurations, or FreeBSD, or a Linux kernel crash. The MOV to SS and POP SS instructions inhibit interrupts (including NMIs), data breakpoints, and single step trap exceptions until the instruction boundary following the next instruction (SDM Vol. 3A; section 6.8.3). (The inhibited data breakpoints are those on memory accessed by the MOV to SS or POP to SS instruction itself.) Note that debug exceptions are not inhibited by the interrupt enable (EFLAGS.IF) system flag (SDM Vol. 3A; section 2.3). If the instruction following the MOV to SS or POP to SS instruction is an instruction like SYSCALL, SYSENTER, INT 3, etc. that transfers control to the operating system at CPL < 3, the debug exception is delivered after the transfer to CPL < 3 is complete. OS kernels may not expect this order of events and may therefore experience unexpected behavior when it occurs.
30 CVE-2018-7183 787 Exec Code Overflow 2018-03-08 2021-07-20
7.5
None Remote Low Not required Partial Partial Partial
Buffer overflow in the decodearr function in ntpq in ntp 4.2.8p6 through 4.2.8p10 allows remote attackers to execute arbitrary code by leveraging an ntpq query and sending a response with a crafted array.
31 CVE-2018-6923 400 DoS 2018-09-04 2018-11-13
7.8
None Remote Low Not required None None Complete
In FreeBSD before 11.1-STABLE, 11.2-RELEASE-p2, 11.1-RELEASE-p13, ip fragment reassembly code is vulnerable to a denial of service due to excessive system resource consumption. This issue can allow a remote attacker who is able to send an arbitrary ip fragments to cause the machine to consume excessive resources.
32 CVE-2018-6918 835 2018-04-04 2019-10-03
7.8
None Remote Low Not required None None Complete
In FreeBSD before 11.1-STABLE, 11.1-RELEASE-p9, 10.4-STABLE, 10.4-RELEASE-p8 and 10.3-RELEASE-p28, the length field of the ipsec option header does not count the size of the option header itself, causing an infinite loop when the length is zero. This issue can allow a remote attacker who is able to send an arbitrary packet to cause the machine to crash.
33 CVE-2017-1085 119 Exec Code Overflow 2018-09-12 2018-11-23
7.2
None Local Low Not required Complete Complete Complete
In FreeBSD before 11.2-RELEASE, an application which calls setrlimit() to increase RLIMIT_STACK may turn a read-only memory region below the stack into a read-write region. A specially crafted executable could be exploited to execute arbitrary code in the user context.
34 CVE-2017-1084 119 Overflow 2018-09-12 2018-11-23
7.8
None Remote Low Not required None None Complete
In FreeBSD before 11.2-RELEASE, multiple issues with the implementation of the stack guard-page reduce the protections afforded by the guard-page. This results in the possibility a poorly written process could be cause a stack overflow.
35 CVE-2017-1083 119 Overflow 2018-09-12 2018-11-23
7.8
None Remote Low Not required None None Complete
In FreeBSD before 11.2-RELEASE, a stack guard-page is available but is disabled by default. This results in the possibility a poorly written process could be cause a stack overflow.
36 CVE-2017-1081 20 2018-04-10 2019-10-09
7.8
None Remote Low Not required None None Complete
In FreeBSD before 11.0-STABLE, 11.0-RELEASE-p10, 10.3-STABLE, and 10.3-RELEASE-p19, ipfilter using "keep state" or "keep frags" options can cause a kernel panic when fed specially crafted packet fragments due to incorrect memory handling.
37 CVE-2016-6559 119 Overflow 2018-07-13 2019-10-09
7.5
None Remote Low Not required Partial Partial Partial
Improper bounds checking of the obuf variable in the link_ntoa() function in linkaddr.c of the BSD libc library may allow an attacker to read or write from memory. The full impact and severity depends on the method of exploit and how the library is used by applications. According to analysis by FreeBSD developers, it is very unlikely that applications exist that utilize link_ntoa() in an exploitable manner, and the CERT/CC is not aware of any proof of concept. A blog post describes the functionality of link_ntoa() and points out that none of the base utilities use this function in an exploitable manner. For more information, please see FreeBSD Security Advisory SA-16:37.
38 CVE-2016-1889 190 Overflow +Priv 2017-02-15 2017-02-16
7.2
None Local Low Not required Complete Complete Complete
Integer overflow in the bhyve hypervisor in FreeBSD 10.1, 10.2, 10.3, and 11.0 when configured with a large amount of guest memory, allows local users to gain privilege via a crafted device descriptor.
39 CVE-2016-1887 264 DoS Overflow +Priv 2016-05-25 2016-05-26
7.2
None Local Low Not required Complete Complete Complete
Integer signedness error in the sockargs function in sys/kern/uipc_syscalls.c in FreeBSD 10.1 before p34, 10.2 before p17, and 10.3 before p3 allows local users to cause a denial of service (memory overwrite and kernel panic) or gain privileges via a negative buflen argument, which triggers a heap-based buffer overflow.
40 CVE-2016-1886 119 DoS Overflow +Priv +Info 2016-05-25 2017-04-20
7.2
None Local Low Not required Complete Complete Complete
Integer signedness error in the genkbd_commonioctl function in sys/dev/kbd/kbd.c in FreeBSD 9.3 before p42, 10.1 before p34, 10.2 before p17, and 10.3 before p3 allows local users to obtain sensitive information from kernel memory, cause a denial of service (memory overwrite and kernel crash), or gain privileges via a negative value in the flen structure member in the arg argument in a SETFKEY ioctl call, which triggers a "two way heap and stack overflow."
41 CVE-2016-1883 264 +Priv 2017-02-15 2017-02-17
7.2
None Local Low Not required Complete Complete Complete
The issetugid system call in the Linux compatibility layer in FreeBSD 9.3, 10.1, and 10.2 allows local users to gain privilege via unspecified vectors.
42 CVE-2016-1882 19 DoS 2016-01-29 2016-03-02
7.8
None Remote Low Not required None None Complete
FreeBSD 9.3 before p33, 10.1 before p26, and 10.2 before p9 allow remote attackers to cause a denial of service (kernel crash) via vectors related to creating a TCP connection with the TCP_MD5SIG and TCP_NOOPT socket options.
43 CVE-2016-1881 264 DoS +Priv 2017-02-15 2018-01-30
7.2
None Local Low Not required Complete Complete Complete
The kernel in FreeBSD 9.3, 10.1, and 10.2 allows local users to cause a denial of service (crash) or potentially gain privilege via a crafted Linux compatibility layer setgroups system call.
44 CVE-2016-1880 264 +Priv 2017-02-15 2017-02-17
7.2
None Local Low Not required Complete Complete Complete
The Linux compatibility layer in the kernel in FreeBSD 9.3, 10.1, and 10.2 allows local users to read portions of kernel memory and potentially gain privilege via unspecified vectors, related to "handling of Linux futex robust lists."
45 CVE-2016-1879 DoS 2016-01-29 2017-09-10
7.8
None Remote Low Not required None None Complete
The Stream Control Transmission Protocol (SCTP) module in FreeBSD 9.3 before p33, 10.1 before p26, and 10.2 before p9, when the kernel is configured for IPv6, allows remote attackers to cause a denial of service (assertion failure or NULL pointer dereference and kernel panic) via a crafted ICMPv6 packet.
46 CVE-2015-5675 264 DoS +Priv 2017-10-10 2018-10-09
7.2
None Local Low Not required Complete Complete Complete
The sys_amd64 IRET Handler in the kernel in FreeBSD 9.3 and 10.1 allows local users to gain privileges or cause a denial of service (kernel panic).
47 CVE-2015-1414 DoS Overflow 2015-02-27 2019-05-30
7.8
None Remote Low Not required None None Complete
Integer overflow in FreeBSD before 8.4 p24, 9.x before 9.3 p10. 10.0 before p18, and 10.1 before p6 allows remote attackers to cause a denial of service (crash) via a crafted IGMP packet, which triggers an incorrect size calculation and allocation of insufficient memory.
48 CVE-2014-8613 DoS 2015-02-02 2015-02-04
7.8
None Remote Low Not required None None Complete
The sctp module in FreeBSD 10.1 before p5, 10.0 before p17, 9.3 before p9, and 8.4 before p23 allows remote attackers to cause a denial of service (NULL pointer dereference and kernel panic) via a crafted RE_CONFIG chunk.
49 CVE-2014-3879 287 Bypass 2020-02-18 2020-02-27
7.5
None Remote Low Not required Partial Partial Partial
OpenPAM Nummularia 9.2 through 10.0 does not properly handle the error reported when an include directive refers to a policy that does not exist, which causes the loaded policy chain to no be discarded and allows context-dependent attackers to bypass authentication via a login (1) without a password or (2) with an incorrect password.
50 CVE-2014-3000 119 DoS Overflow 2014-05-02 2014-06-21
7.8
None Remote Medium Not required Partial None Complete
The TCP reassembly function in the inet module in FreeBSD 8.3 before p16, 8.4 before p9, 9.1 before p12, 9.2 before p5, and 10.0 before p2 allows remote attackers to cause a denial of service (undefined memory access and system crash) or possibly read system memory via multiple crafted packets, related to moving a reassemble queue entry to the segment list when the queue is full.
Total number of vulnerabilities : 154   Page : 1 (This Page)2 3 4
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