Buffer overflow in Linux kernel lib bpf

1) Buffer overflow

EUVDB-ID: #VU109570

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-2025-37939

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to memory corruption within the btf_ext_parse_info() function in tools/lib/bpf/btf.c. A local user can perform a denial of service (DoS) attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Linux kernel: 6.13 - 6.13.10

CPE2.3

• cpe:2.3:o:linux_foundation:linux_kernel:6.13:*:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:6.13.1:*:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:6.13.2:*:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:6.13.3:*:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:6.13.4:*:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:6.13.5:*:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:6.13.6:*:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:6.13.7:*:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:6.13.8:*:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:6.13.9:*:*:*:*:*:*:*

External links

https://git.kernel.org/stable/c/0a7c2a84359612e54328aa52030eb202093da6e2
https://git.kernel.org/stable/c/3a67f60f0a8be10cea7a884a1a00e9feb6645657
https://git.kernel.org/stable/c/d529411ec44535308c5d59cbeff74be6fe14b479
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.13.11

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.