Buffer overflow in Linux kernel net driver

1) Buffer overflow

EUVDB-ID: #VU102967

Risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2024-57843

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to memory corruption within the virtnet_rq_alloc(), add_recvbuf_small() and add_recvbuf_mergeable() functions in drivers/net/virtio_net.c. A local user can escalate privileges on the system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Linux kernel: All versions

CPE2.3

• cpe:2.3:o:linux_foundation:linux_kernel:*:*:*:*:*:*:*:*

External links

https://git.kernel.org/stable/c/67a11de8965c2ab19e215fb6651d44847e068614
https://git.kernel.org/stable/c/6aacd1484468361d1d04badfe75f264fa5314864
https://git.kernel.org/stable/c/a8f7d6963768b114ec9644ff0148dde4c104e84b

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.