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Canonical » Ubuntu Linux : Security Vulnerabilities (CVSS score between 2 and 2.99)

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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-2021-32555 59 2021-06-12 2021-06-16
2.1
None Local Low Not required Partial None None
It was discovered that read_file() in apport/hookutils.py would follow symbolic links or open FIFOs. When this function is used by the xorg-hwe-18.04 package apport hooks, it could expose private data to other local users.
2 CVE-2021-32554 59 2021-06-12 2021-06-16
2.1
None Local Low Not required Partial None None
It was discovered that read_file() in apport/hookutils.py would follow symbolic links or open FIFOs. When this function is used by the xorg package apport hooks, it could expose private data to other local users.
3 CVE-2021-32553 59 2021-06-12 2021-06-16
2.1
None Local Low Not required Partial None None
It was discovered that read_file() in apport/hookutils.py would follow symbolic links or open FIFOs. When this function is used by the openjdk-17 package apport hooks, it could expose private data to other local users.
4 CVE-2021-32552 59 2021-06-12 2021-06-15
2.1
None Local Low Not required Partial None None
It was discovered that read_file() in apport/hookutils.py would follow symbolic links or open FIFOs. When this function is used by the openjdk-16 package apport hooks, it could expose private data to other local users.
5 CVE-2021-32551 59 2021-06-12 2021-06-15
2.1
None Local Low Not required Partial None None
It was discovered that read_file() in apport/hookutils.py would follow symbolic links or open FIFOs. When this function is used by the openjdk-15 package apport hooks, it could expose private data to other local users.
6 CVE-2021-32550 59 2021-06-12 2021-06-15
2.1
None Local Low Not required Partial None None
It was discovered that read_file() in apport/hookutils.py would follow symbolic links or open FIFOs. When this function is used by the openjdk-14 package apport hooks, it could expose private data to other local users.
7 CVE-2021-32549 59 2021-06-12 2021-06-15
2.1
None Local Low Not required Partial None None
It was discovered that read_file() in apport/hookutils.py would follow symbolic links or open FIFOs. When this function is used by the openjdk-13 package apport hooks, it could expose private data to other local users.
8 CVE-2021-32548 59 2021-06-12 2021-06-15
2.1
None Local Low Not required Partial None None
It was discovered that read_file() in apport/hookutils.py would follow symbolic links or open FIFOs. When this function is used by the openjdk-8 package apport hooks, it could expose private data to other local users.
9 CVE-2021-32547 59 2021-06-12 2021-06-15
2.1
None Local Low Not required Partial None None
It was discovered that read_file() in apport/hookutils.py would follow symbolic links or open FIFOs. When this function is used by the openjdk-lts package apport hooks, it could expose private data to other local users.
10 CVE-2020-27349 862 2020-12-09 2020-12-11
2.1
None Local Low Not required None None Partial
Aptdaemon performed policykit checks after interacting with potentially untrusted files with elevated privileges. This affected versions prior to 1.1.1+bzr982-0ubuntu34.1, 1.1.1+bzr982-0ubuntu32.3, 1.1.1+bzr982-0ubuntu19.5, 1.1.1+bzr982-0ubuntu14.5.
11 CVE-2020-16128 209 2020-12-09 2020-12-11
2.1
None Local Low Not required Partial None None
The aptdaemon DBus interface disclosed file existence disclosure by setting Terminal/DebconfSocket properties, aka GHSL-2020-192 and GHSL-2020-196. This affected versions prior to 1.1.1+bzr982-0ubuntu34.1, 1.1.1+bzr982-0ubuntu32.3, 1.1.1+bzr982-0ubuntu19.5, 1.1.1+bzr982-0ubuntu14.5.
12 CVE-2020-16123 362 2020-12-04 2020-12-10
2.1
None Local Low Not required Partial None None
An Ubuntu-specific patch in PulseAudio created a race condition where the snap policy module would fail to identify a client connection from a snap as coming from a snap if SCM_CREDENTIALS were missing, allowing the snap to connect to PulseAudio without proper confinement. This could be exploited by an attacker to expose sensitive information. Fixed in 1:13.99.3-1ubuntu2, 1:13.99.2-1ubuntu2.1, 1:13.99.1-1ubuntu3.8, 1:11.1-1ubuntu7.11, and 1:8.0-0ubuntu3.15.
13 CVE-2020-16122 2020-11-07 2021-04-14
2.1
None Local Low Not required None Partial None
PackageKit's apt backend mistakenly treated all local debs as trusted. The apt security model is based on repository trust and not on the contents of individual files. On sites with configured PolicyKit rules this may allow users to install malicious packages.
14 CVE-2020-16121 209 2020-11-07 2020-11-18
2.1
None Local Low Not required Partial None None
PackageKit provided detailed error messages to unprivileged callers that exposed information about file presence and mimetype of files that the user would be unable to determine on its own.
15 CVE-2020-16120 2021-02-10 2021-11-18
2.1
None Local Low Not required Partial None None
Overlayfs did not properly perform permission checking when copying up files in an overlayfs and could be exploited from within a user namespace, if, for example, unprivileged user namespaces were allowed. It was possible to have a file not readable by an unprivileged user to be copied to a mountpoint controlled by the user, like a removable device. This was introduced in kernel version 4.19 by commit d1d04ef ("ovl: stack file ops"). This was fixed in kernel version 5.8 by commits 56230d9 ("ovl: verify permissions in ovl_path_open()"), 48bd024 ("ovl: switch to mounter creds in readdir") and 05acefb ("ovl: check permission to open real file"). Additionally, commits 130fdbc ("ovl: pass correct flags for opening real directory") and 292f902 ("ovl: call secutiry hook in ovl_real_ioctl()") in kernel 5.8 might also be desired or necessary. These additional commits introduced a regression in overlay mounts within user namespaces which prevented access to files with ownership outside of the user namespace. This regression was mitigated by subsequent commit b6650da ("ovl: do not fail because of O_NOATIMEi") in kernel 5.11.
16 CVE-2020-15358 787 Overflow 2020-06-27 2021-09-22
2.1
None Local Low Not required None None Partial
In SQLite before 3.32.3, select.c mishandles query-flattener optimization, leading to a multiSelectOrderBy heap overflow because of misuse of transitive properties for constant propagation.
17 CVE-2020-15157 522 2020-10-16 2021-11-18
2.6
None Remote High Not required Partial None None
In containerd (an industry-standard container runtime) before version 1.2.14 there is a credential leaking vulnerability. If a container image manifest in the OCI Image format or Docker Image V2 Schema 2 format includes a URL for the location of a specific image layer (otherwise known as a “foreign layer”), the default containerd resolver will follow that URL to attempt to download it. In v1.2.x but not 1.3.0 or later, the default containerd resolver will provide its authentication credentials if the server where the URL is located presents an HTTP 401 status code along with registry-specific HTTP headers. If an attacker publishes a public image with a manifest that directs one of the layers to be fetched from a web server they control and they trick a user or system into pulling the image, they can obtain the credentials used for pulling that image. In some cases, this may be the user's username and password for the registry. In other cases, this may be the credentials attached to the cloud virtual instance which can grant access to other cloud resources in the account. The default containerd resolver is used by the cri-containerd plugin (which can be used by Kubernetes), the ctr development tool, and other client programs that have explicitly linked against it. This vulnerability has been fixed in containerd 1.2.14. containerd 1.3 and later are not affected. If you are using containerd 1.3 or later, you are not affected. If you are using cri-containerd in the 1.2 series or prior, you should ensure you only pull images from trusted sources. Other container runtimes built on top of containerd but not using the default resolver (such as Docker) are not affected.
18 CVE-2020-15011 74 2020-06-24 2021-11-30
2.6
None Remote High Not required None Partial None
GNU Mailman before 2.1.33 allows arbitrary content injection via the Cgi/private.py private archive login page.
19 CVE-2020-14415 369 2020-08-27 2020-09-02
2.1
None Local Low Not required None None Partial
oss_write in audio/ossaudio.c in QEMU before 5.0.0 mishandles a buffer position.
20 CVE-2020-14392 119 Overflow Mem. Corr. 2020-09-16 2021-10-19
2.1
None Local Low Not required None None Partial
An untrusted pointer dereference flaw was found in Perl-DBI < 1.643. A local attacker who is able to manipulate calls to dbd_db_login6_sv() could cause memory corruption, affecting the service's availability.
21 CVE-2020-14378 191 2020-09-30 2021-11-04
2.1
None Local Low Not required None None Partial
An integer underflow in dpdk versions before 18.11.10 and before 19.11.5 in the `move_desc` function can lead to large amounts of CPU cycles being eaten up in a long running loop. An attacker could cause `move_desc` to get stuck in a 4,294,967,295-count iteration loop. Depending on how `vhost_crypto` is being used this could prevent other VMs or network tasks from being serviced by the busy DPDK lcore for an extended period.
22 CVE-2020-13397 125 2020-05-22 2020-11-09
2.1
None Local Low Not required Partial None None
An issue was discovered in FreeRDP before 2.1.1. An out-of-bounds (OOB) read vulnerability has been detected in security_fips_decrypt in libfreerdp/core/security.c due to an uninitialized value.
23 CVE-2020-13253 125 2020-05-27 2020-12-14
2.1
None Local Low Not required None None Partial
sd_wp_addr in hw/sd/sd.c in QEMU 4.2.0 uses an unvalidated address, which leads to an out-of-bounds read during sdhci_write() operations. A guest OS user can crash the QEMU process.
24 CVE-2020-12829 190 DoS Overflow 2020-08-31 2020-12-14
2.1
None Local Low Not required None None Partial
In QEMU through 5.0.0, an integer overflow was found in the SM501 display driver implementation. This flaw occurs in the COPY_AREA macro while handling MMIO write operations through the sm501_2d_engine_write() callback. A local attacker could abuse this flaw to crash the QEMU process in sm501_2d_operation() in hw/display/sm501.c on the host, resulting in a denial of service.
25 CVE-2020-11931 668 Bypass 2020-05-15 2020-05-19
2.1
None Local Low Not required Partial None None
An Ubuntu-specific modification to Pulseaudio to provide security mediation for Snap-packaged applications was found to have a bypass of intended access restriction for snaps which plugs any of pulseaudio, audio-playback or audio-record via unloading the pulseaudio snap policy module. This issue affects: pulseaudio 1:8.0 versions prior to 1:8.0-0ubuntu3.12; 1:11.1 versions prior to 1:11.1-1ubuntu7.7; 1:13.0 versions prior to 1:13.0-1ubuntu1.2; 1:13.99.1 versions prior to 1:13.99.1-1ubuntu3.2;
26 CVE-2020-10756 125 +Info 2020-07-09 2021-08-04
2.1
None Local Low Not required Partial None None
An out-of-bounds read vulnerability was found in the SLiRP networking implementation of the QEMU emulator. This flaw occurs in the icmp6_send_echoreply() routine while replying to an ICMP echo request, also known as ping. This flaw allows a malicious guest to leak the contents of the host memory, resulting in possible information disclosure. This flaw affects versions of libslirp before 4.3.1.
27 CVE-2020-10724 125 +Info 2020-05-19 2021-10-19
2.1
None Local Low Not required Partial None None
A vulnerability was found in DPDK versions 18.11 and above. The vhost-crypto library code is missing validations for user-supplied values, potentially allowing an information leak through an out-of-bounds memory read.
28 CVE-2020-8832 200 +Info 2020-04-10 2020-04-30
2.1
None Local Low Not required Partial None None
The fix for the Linux kernel in Ubuntu 18.04 LTS for CVE-2019-14615 ("The Linux kernel did not properly clear data structures on context switches for certain Intel graphics processors.") was discovered to be incomplete, meaning that in versions of the kernel before 4.15.0-91.92, an attacker could use this vulnerability to expose sensitive information.
29 CVE-2020-8831 59 2020-04-22 2020-06-24
2.1
None Local Low Not required None Partial None
Apport creates a world writable lock file with root ownership in the world writable /var/lock/apport directory. If the apport/ directory does not exist (this is not uncommon as /var/lock is a tmpfs), it will create the directory, otherwise it will simply continue execution using the existing directory. This allows for a symlink attack if an attacker were to create a symlink at /var/lock/apport, changing apport's lock file location. This file could then be used to escalate privileges, for example. Fixed in versions 2.20.1-0ubuntu2.23, 2.20.9-0ubuntu7.14, 2.20.11-0ubuntu8.8 and 2.20.11-0ubuntu22.
30 CVE-2020-5973 20 DoS 2020-06-30 2021-07-21
2.1
None Local Low Not required None None Partial
NVIDIA Virtual GPU Manager and the guest drivers contain a vulnerability in vGPU plugin, in which there is the potential to execute privileged operations, which may lead to denial of service. This affects vGPU version 8.x (prior to 8.4), version 9.x (prior to 9.4) and version 10.x (prior to 10.3).
31 CVE-2020-0543 200 +Info 2020-06-15 2021-07-21
2.1
None Local Low Not required Partial None None
Incomplete cleanup from specific special register read operations in some Intel(R) Processors may allow an authenticated user to potentially enable information disclosure via local access.
32 CVE-2019-20795 416 2020-05-09 2020-09-10
2.1
None Local Low Not required None None Partial
iproute2 before 5.1.0 has a use-after-free in get_netnsid_from_name in ip/ipnetns.c. NOTE: security relevance may be limited to certain uses of setuid that, although not a default, are sometimes a configuration option offered to end users. Even when setuid is used, other factors (such as C library configuration) may block exploitability.
33 CVE-2019-19318 416 2019-11-28 2021-03-15
2.1
None Local Low Not required None None Partial
In the Linux kernel 5.3.11, mounting a crafted btrfs image twice can cause an rwsem_down_write_slowpath use-after-free because (in rwsem_can_spin_on_owner in kernel/locking/rwsem.c) rwsem_owner_flags returns an already freed pointer,
34 CVE-2019-16680 22 Dir. Trav. 2019-09-21 2019-12-20
2.6
None Remote High Not required None Partial None
An issue was discovered in GNOME file-roller before 3.29.91. It allows a single ./../ path traversal via a filename contained in a TAR archive, possibly overwriting a file during extraction.
35 CVE-2019-15790 269 Mem. Corr. +Info 2020-04-28 2020-05-14
2.1
None Local Low Not required Partial None None
Apport reads and writes information on a crashed process to /proc/pid with elevated privileges. Apport then determines which user the crashed process belongs to by reading /proc/pid through get_pid_info() in data/apport. An unprivileged user could exploit this to read information about a privileged running process by exploiting PID recycling. This information could then be used to obtain ASLR offsets for a process with an existing memory corruption vulnerability. The initial fix introduced regressions in the Python Apport library due to a missing argument in Report.add_proc_environ in apport/report.py. It also caused an autopkgtest failure when reading /proc/pid and with Python 2 compatibility by reading /proc maps. The initial and subsequent regression fixes are in 2.20.11-0ubuntu16, 2.20.11-0ubuntu8.6, 2.20.9-0ubuntu7.12, 2.20.1-0ubuntu2.22 and 2.14.1-0ubuntu3.29+esm3.
36 CVE-2019-14907 125 2020-01-21 2021-05-29
2.6
None Remote High Not required None None Partial
All samba versions 4.9.x before 4.9.18, 4.10.x before 4.10.12 and 4.11.x before 4.11.5 have an issue where if it is set with "log level = 3" (or above) then the string obtained from the client, after a failed character conversion, is printed. Such strings can be provided during the NTLMSSP authentication exchange. In the Samba AD DC in particular, this may cause a long-lived process(such as the RPC server) to terminate. (In the file server case, the most likely target, smbd, operates as process-per-client and so a crash there is harmless).
37 CVE-2019-13627 362 2019-09-25 2021-07-21
2.6
None Local High Not required Partial Partial None
It was discovered that there was a ECDSA timing attack in the libgcrypt20 cryptographic library. Version affected: 1.8.4-5, 1.7.6-2+deb9u3, and 1.6.3-2+deb8u4. Versions fixed: 1.8.5-2 and 1.6.3-2+deb8u7.
38 CVE-2019-12068 835 Exec Code 2019-09-24 2020-07-26
2.1
None Local Low Not required None None Partial
In QEMU 1:4.1-1, 1:2.1+dfsg-12+deb8u6, 1:2.8+dfsg-6+deb9u8, 1:3.1+dfsg-8~deb10u1, 1:3.1+dfsg-8+deb10u2, and 1:2.1+dfsg-12+deb8u12 (fixed), when executing script in lsi_execute_script(), the LSI scsi adapter emulator advances 's->dsp' index to read next opcode. This can lead to an infinite loop if the next opcode is empty. Move the existing loop exit after 10k iterations so that it covers no-op opcodes as well.
39 CVE-2019-11485 2020-02-08 2020-07-30
2.1
None Local Low Not required None None Partial
Sander Bos discovered Apport's lock file was in a world-writable directory which allowed all users to prevent crash handling.
40 CVE-2019-11483 2020-02-08 2020-08-24
2.1
None Local Low Not required Partial None None
Sander Bos discovered Apport mishandled crash dumps originating from containers. This could be used by a local attacker to generate a crash report for a privileged process that is readable by an unprivileged user.
41 CVE-2019-11135 2019-11-14 2021-01-20
2.1
None Local Low Not required Partial None None
TSX Asynchronous Abort condition on some CPUs utilizing speculative execution may allow an authenticated user to potentially enable information disclosure via a side channel with local access.
42 CVE-2019-7317 416 2019-02-04 2021-10-20
2.6
None Remote High Not required None None Partial
png_image_free in png.c in libpng 1.6.x before 1.6.37 has a use-after-free because png_image_free_function is called under png_safe_execute.
43 CVE-2019-7222 +Info 2019-03-21 2020-08-24
2.1
None Local Low Not required Partial None None
The KVM implementation in the Linux kernel through 4.20.5 has an Information Leak.
44 CVE-2019-3812 125 Exec Code 2019-02-19 2019-05-31
2.1
None Local Low Not required Partial None None
QEMU, through version 2.10 and through version 3.1.0, is vulnerable to an out-of-bounds read of up to 128 bytes in the hw/i2c/i2c-ddc.c:i2c_ddc() function. A local attacker with permission to execute i2c commands could exploit this to read stack memory of the qemu process on the host.
45 CVE-2019-2797 2019-07-23 2020-08-24
2.3
None Local Network Medium ??? None None Partial
Vulnerability in the MySQL Server component of Oracle MySQL (subcomponent: Client programs). Supported versions that are affected are 5.7.26 and prior and 8.0.16 and prior. Difficult to exploit vulnerability allows high privileged attacker with access to the physical communication segment attached to the hardware where the MySQL Server executes to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. CVSS 3.0 Base Score 4.2 (Availability impacts). CVSS Vector: (CVSS:3.0/AV:A/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H).
46 CVE-2019-0154 DoS 2019-11-14 2020-08-24
2.1
None Local Low Not required None None Partial
Insufficient access control in subsystem for Intel (R) processor graphics in 6th, 7th, 8th and 9th Generation Intel(R) Core(TM) Processor Families; Intel(R) Pentium(R) Processor J, N, Silver and Gold Series; Intel(R) Celeron(R) Processor J, N, G3900 and G4900 Series; Intel(R) Atom(R) Processor A and E3900 Series; Intel(R) Xeon(R) Processor E3-1500 v5 and v6 and E-2100 Processor Families may allow an authenticated user to potentially enable denial of service via local access.
47 CVE-2018-20781 522 2019-02-12 2021-03-16
2.1
None Local Low Not required Partial None None
In pam/gkr-pam-module.c in GNOME Keyring before 3.27.2, the user's password is kept in a session-child process spawned from the LightDM daemon. This can expose the credential in cleartext.
48 CVE-2018-20685 863 Bypass 2019-01-10 2020-08-24
2.6
None Remote High Not required None Partial None
In OpenSSH 7.9, scp.c in the scp client allows remote SSH servers to bypass intended access restrictions via the filename of . or an empty filename. The impact is modifying the permissions of the target directory on the client side.
49 CVE-2018-20185 125 DoS 2018-12-17 2020-07-14
2.6
None Remote High Not required None None Partial
In GraphicsMagick 1.4 snapshot-20181209 Q8 on 32-bit platforms, there is a heap-based buffer over-read in the ReadBMPImage function of bmp.c, which allows attackers to cause a denial of service via a crafted bmp image file. This only affects GraphicsMagick installations with customized BMP limits.
50 CVE-2018-20126 772 2018-12-20 2020-05-12
2.1
None Local Low Not required None None Partial
hw/rdma/vmw/pvrdma_cmd.c in QEMU allows create_cq and create_qp memory leaks because errors are mishandled.
Total number of vulnerabilities : 189   Page : 1 (This Page)2 3 4
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