#VU90459 Memory leak in Linux kernel - CVE-2023-52653

Vulnerability identifier: #VU90459

Vulnerability risk: Low

CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2023-52653

CWE-ID: CWE-401

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Linux kernel
Operating systems & Components / Operating system

Vendor: Linux Foundation

Description

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

The vulnerability exists due to memory leak within the gss_import_v2_context() function in net/sunrpc/auth_gss/gss_krb5_mech.c. A local user can perform a denial of service (DoS) attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Linux kernel: 6.6 - 6.6.22, 6.7 - 6.7.10, 6.8 - 6.8.1

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External links
https://git.kernel.org/stable/c/99044c01ed5329e73651c054d8a4baacdbb1a27c
https://git.kernel.org/stable/c/47ac11db93e74ac49cd6c3fc69bcbc5964c4a8b4
https://git.kernel.org/stable/c/d111e30d9cd846bb368faf3637dc0f71fcbcf822
https://git.kernel.org/stable/c/e67b652d8e8591d3b1e569dbcdfcee15993e91fa
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.23
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.7.11
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.8.2

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Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?