Gentoo update for zlib

1) Heap-based buffer overflow

EUVDB-ID: #VU82299

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-45853

CWE-ID: CWE-122 - Heap-based Buffer Overflow

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error within the zipOpenNewFileInZip4_64() function from MiniZip. A remote attacker can create a specially crafted archive, trick the victim into opening it, trigger heap-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Update the affected packages.
sys-libs/zlib to version: 1.2.13-r2

Vulnerable software versions

Gentoo Linux: All versions

sys-libs/zlib: before 1.2.13-r2

External links

http://security.gentoo.org/glsa/202401-18

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.