Zero-day vulnerability in XZ Utils

Embedded malicious code (backdoor)
CVE-2024-3094

Not patched

Vulnerability details

Advisory: SB2024040112 - Embedded malicious code in XZ Utils

Vulnerable component: XZ Utils

CVE-ID: CVE-2024-3094

CVSSv3 score: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:H/RL:U/RC:C

CWE-ID: CWE-506 - Embedded Malicious Code

Description:

The vulnerability allows a remote attacker to gain unauthorized access to the application.

The vulnerability exists due to presence of embedded malicious functionality in the application code (aka backdoor) that allows a remote attacker to gain unauthorized access to the system.

Note, the vulnerability is being actively exploited in the wild.

External links:

https://www.openwall.com/lists/oss-security/2024/03/29/4

About zero-day vulnerabilities

Zero-day vulnerability is an undisclosed vulnerability in software that hackers can exploit to compromise computer programs, gain unauthorized access to sensitive data, penetrate networks, etc. We consider vulnerability a zero-day when there is no solution provided from software vendor and the vulnerability is being actively exploited by malicious actors.

Zero-day candidate is a potential zero-day vulnerability in software which might have been used in targeted attacks, however there is no evidence to support this suggestion.