Information disclosure in Patchelf

1) Out-of-bounds read

EUVDB-ID: #VU75394

Risk: Low

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-44940

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition within the modifyRPath() function in src/patchelf.cc. A remote attacker can create a specially crafted file, trick the victim into opening it, trigger an out-of-bounds read error and read contents of memory on the system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

patchelf: 0.1 - 0.15.0

CPE2.3

• cpe:2.3:a:nixos.org:patchelf:0.1:*:*:*:*:*:*:*
• cpe:2.3:a:nixos.org:patchelf:0.2:*:*:*:*:*:*:*
• cpe:2.3:a:nixos.org:patchelf:0.3:*:*:*:*:*:*:*

External links

https://github.com/NixOS/patchelf/pull/419

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.