#VU100192 Improper error handling in Linux kernel - CVE-2024-50256

Vulnerability identifier: #VU100192

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-2024-50256

CWE-ID: CWE-388

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 improper error handling within the nf_reject6_fill_skb_dst() and nf_send_reset6() functions in net/ipv6/netfilter/nf_reject_ipv6.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/4f7b586aae53c2ed820661803da8ce18b1361921
https://git.kernel.org/stable/c/fef63832317d9d24e1214cdd8f204d02ebdf8499
https://git.kernel.org/stable/c/f85b057e34419e5ec0583a65078a11ccc1d4540a
https://git.kernel.org/stable/c/4ed234fe793f27a3b151c43d2106df2ff0d81aac

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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.