Buffer overflow in Linux kernel events

1) Buffer overflow

EUVDB-ID: #VU94478

Risk: Low

CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-48799

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to memory corruption within the DEFINE_PER_CPU() and perf_cgroup_switch() functions in kernel/events/core.c. A local user can perform a denial of service (DoS) attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Linux kernel: All versions

External links

http://git.kernel.org/stable/c/5d76ed4223403f90421782adb2f20a9ecbc93186
http://git.kernel.org/stable/c/30d9f3cbe47e1018ddc8069ac5b5c9e66fbdf727
http://git.kernel.org/stable/c/a2ed7b29d0673ba361546e2d87dbbed149456c45
http://git.kernel.org/stable/c/f6b5d51976fcefef5732da3e3feb3ccff680f7c8
http://git.kernel.org/stable/c/7969fe91c9830e045901970e9d755b7505881d4a
http://git.kernel.org/stable/c/2142bc1469a316fddd10012d76428f7265258f81
http://git.kernel.org/stable/c/5f4e5ce638e6a490b976ade4a40017b40abb2da0

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.