#VU99165 Resource management error in Linux kernel - CVE-2022-48956

Vulnerability identifier: #VU99165

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-2022-48956

CWE-ID: CWE-399

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 resource management error within the ip6_fragment() function in net/ipv6/ip6_output.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

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External links
https://git.kernel.org/stable/c/b3d7ff8c04a83279fb7641fc4d5aa82a602df7c0
https://git.kernel.org/stable/c/7e0dcd5f3ade221a6126278aca60c8ab4cc3bce9
https://git.kernel.org/stable/c/6b6d3be3661bff2746cab26147bd629aa034e094
https://git.kernel.org/stable/c/8208d7e56b1e579320b9ff3712739ad2e63e1f86
https://git.kernel.org/stable/c/7390c70bd431cbfa6951477e2c80a301643e284b
https://git.kernel.org/stable/c/9b1a468a455d8319041528778d0e684a4c062792
https://git.kernel.org/stable/c/803e84867de59a1e5d126666d25eb4860cfd2ebe

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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.