#VU90314 Out-of-bounds read in Linux kernel - CVE-2022-48687
Vulnerability identifier: #VU90314
Vulnerability risk: Low
CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: CVE-2022-48687
CWE-ID:
CWE-125
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 gain access to sensitive information.
The vulnerability exists due to an out-of-bounds read error within the seg6_genl_sethmac() function in net/ipv6/seg6.c. A local user can gain access to sensitive information.
Mitigation
Install update from vendor's website.
Vulnerable software versions
Linux kernel: 4.14, 4.14.0, 4.14.0 rc1, 4.14.1, 4.14.2, 4.14.3, 4.14.4, 4.14.5, 4.14.6, 4.14.7, 4.14.8, 4.14.9, 4.14.10, 4.14.11, 4.14.12, 4.14.13, 4.14.14, 4.14.15, 4.14.16, 4.14.17, 4.14.18, 4.14.19, 4.14.20, 4.14.21, 4.14.22, 4.14.23, 4.14.24, 4.14.25, 4.14.26, 4.14.27, 4.14.28, 4.14.29, 4.14.30, 4.14.31, 4.14.32, 4.14.33, 4.14.34, 4.14.35, 4.14.36, 4.14.37, 4.14.38, 4.14.39, 4.14.40, 4.14.41, 4.14.42, 4.14.43, 4.14.44, 4.14.45, 4.14.46, 4.14.47, 4.14.48, 4.14.49, 4.14.50, 4.14.51, 4.14.52, 4.14.53, 4.14.54, 4.14.55, 4.14.56, 4.14.57, 4.14.58, 4.14.59, 4.14.60, 4.14.61, 4.14.62, 4.14.63, 4.14.64, 4.14.65, 4.14.66, 4.14.67, 4.14.68, 4.14.69, 4.14.70, 4.14.71, 4.14.72, 4.14.73, 4.14.74, 4.14.75, 4.14.76, 4.14.77, 4.14.78, 4.14.79, 4.14.80, 4.14.81, 4.14.82, 4.14.83, 4.14.84, 4.14.85, 4.14.86, 4.14.87, 4.14.88, 4.14.89, 4.14.90, 4.14.91, 4.14.92, 4.14.93, 4.14.94, 4.14.95, 4.14.96, 4.14.97, 4.14.98, 4.14.99, 4.14.100, 4.14.101, 4.14.102, 4.14.103, 4.14.104, 4.14.105, 4.14.106, 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External links
https://git.kernel.org/stable/c/dc9dbd65c803af1607484fed5da50d41dc8dd864
https://git.kernel.org/stable/c/f684c16971ed5e77dfa25a9ad25b5297e1f58eab
https://git.kernel.org/stable/c/3df71e11a4773d775c3633c44319f7acdb89011c
https://git.kernel.org/stable/c/076f2479fc5a15c4a970ca3b5e57d42ba09a31fa
https://git.kernel.org/stable/c/55195563ec29f80f984237b743de0e2b6ba4d093
https://git.kernel.org/stable/c/56ad3f475482bca55b0ae544031333018eb145b3
https://git.kernel.org/stable/c/84a53580c5d2138c7361c7c3eea5b31827e63b35
https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.293
https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.258
https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.143
https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.68
https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19.9
https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.213
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.0
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.
