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Linux » Linux Kernel » * * * * : Security Vulnerabilities Published In 2020 (Gain Information)

Cpe Name:cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
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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-2020-29569 252 +Info 2020-12-15 2021-07-21
7.2
None Local Low Not required Complete Complete Complete
An issue was discovered in the Linux kernel through 5.10.1, as used with Xen through 4.14.x. The Linux kernel PV block backend expects the kernel thread handler to reset ring->xenblkd to NULL when stopped. However, the handler may not have time to run if the frontend quickly toggles between the states connect and disconnect. As a consequence, the block backend may re-use a pointer after it was freed. A misbehaving guest can trigger a dom0 crash by continuously connecting / disconnecting a block frontend. Privilege escalation and information leaks cannot be ruled out. This only affects systems with a Linux blkback.
2 CVE-2020-16166 200 +Info 2020-07-30 2021-07-21
4.3
None Remote Medium Not required Partial None None
The Linux kernel through 5.7.11 allows remote attackers to make observations that help to obtain sensitive information about the internal state of the network RNG, aka CID-f227e3ec3b5c. This is related to drivers/char/random.c and kernel/time/timer.c.
3 CVE-2020-11494 200 +Info 2020-04-02 2021-07-21
2.1
None Local Low Not required Partial None None
An issue was discovered in slc_bump in drivers/net/can/slcan.c in the Linux kernel 3.16 through 5.6.2. It allows attackers to read uninitialized can_frame data, potentially containing sensitive information from kernel stack memory, if the configuration lacks CONFIG_INIT_STACK_ALL, aka CID-b9258a2cece4.
4 CVE-2020-8428 416 DoS +Info 2020-01-29 2020-06-10
3.6
None Local Low Not required Partial None Partial
fs/namei.c in the Linux kernel before 5.5 has a may_create_in_sticky use-after-free, which allows local users to cause a denial of service (OOPS) or possibly obtain sensitive information from kernel memory, aka CID-d0cb50185ae9. One attack vector may be an open system call for a UNIX domain socket, if the socket is being moved to a new parent directory and its old parent directory is being removed.
5 CVE-2019-18282 200 +Info 2020-01-16 2021-07-21
5.0
None Remote Low Not required Partial None None
The flow_dissector feature in the Linux kernel 4.3 through 5.x before 5.3.10 has a device tracking vulnerability, aka CID-55667441c84f. This occurs because the auto flowlabel of a UDP IPv6 packet relies on a 32-bit hashrnd value as a secret, and because jhash (instead of siphash) is used. The hashrnd value remains the same starting from boot time, and can be inferred by an attacker. This affects net/core/flow_dissector.c and related code.
6 CVE-2011-4915 200 +Info 2020-02-20 2020-02-25
2.1
None Local Low Not required Partial None None
fs/proc/base.c in the Linux kernel through 3.1 allows local users to obtain sensitive keystroke information via access to /proc/interrupts.
Total number of vulnerabilities : 6   Page : 1 (This Page)
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