#VU104900 Resource management error in Linux kernel - CVE-2022-49663

Vulnerability identifier: #VU104900

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-2022-49663

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 skb_tunnel_check_pmtu() function in net/ipv4/ip_tunnel_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

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External links
https://git.kernel.org/stable/c/32dcf62efa0003f92a976aea0c57f118e689de8b
https://git.kernel.org/stable/c/59c51c3b545128a92ebfb6dbae990d3abee110e7
https://git.kernel.org/stable/c/674a641e5b67e16ba3112eacd680ff87b38539de
https://git.kernel.org/stable/c/853a7614880231747040cada91d2b8d2e995c51a

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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.