#VU99151 Buffer overflow in Linux kernel - CVE-2024-49952

Vulnerability identifier: #VU99151

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-2024-49952

CWE-ID: CWE-119

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 corruption within the nf_dup_ipv6_route() and nf_dup_ipv6() functions in net/ipv6/netfilter/nf_dup_ipv6.c, within the nf_dup_ipv4() function in net/ipv4/netfilter/nf_dup_ipv4.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/531754952f5dfc4b141523088147071d6e6112c4
https://git.kernel.org/stable/c/38e3fd0c4a2616052eb3c8f4e6f32d1ff47cd663
https://git.kernel.org/stable/c/b40b027a0c0cc1cb9471a13f9730bb2fff12a15b
https://git.kernel.org/stable/c/4e3542f40f3a94efa59ea328e307c50601ed7065
https://git.kernel.org/stable/c/f839c5cd348201fec440d987cbca9b979bdb4fa7
https://git.kernel.org/stable/c/752e1924604254f1708f3e3700283a86ebdd325d
https://git.kernel.org/stable/c/92ceba94de6fb4cee2bf40b485979c342f44a492

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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.