Detections
Analytics
GLSA-202403-04 : XZ utils: Backdoor in release tarballs
critical Nessus Plugin ID 192734
Language:
Description
The remote host is affected by the vulnerability described in GLSA-202403-04 (XZ utils: Backdoor in release tarballs)- Malicious code was discovered in the upstream tarballs of xz, starting with version 5.6.0. Through a series of complex obfuscations, the liblzma build process extracts a prebuilt object file from a disguised test file existing in the source code, which is then used to modify specific functions in the liblzma code. This results in a modified liblzma library that can be used by any software linked against this library, intercepting and modifying the data interaction with this library. (CVE-2024-3094)
Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.
Solution
All XZ utils users should downgrade to the latest version before the backdoor was introduced:# emerge --sync # emerge --ask --oneshot --verbose <app-arch/xz-utils-5.6.0
See Also
Plugin Details
Severity: Critical
ID: 192734
File Name: gentoo_GLSA-202403-04.nasl
Version: 1.3
Type: local
Family: Gentoo Local Security Checks
Published: 4/1/2024
Updated: 6/7/2024
Supported Sensors: Nessus
Risk Information
VPR
Risk Factor: Critical
Score: 10.0
CVSS v2
Risk Factor: Critical
Base Score: 10
Temporal Score: 8.7
Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C
CVSS Score Source: CVE-2024-3094
CVSS v3
Risk Factor: Critical
Base Score: 10
Temporal Score: 9.5
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Temporal Vector: CVSS:3.0/E:H/RL:O/RC:C
Vulnerability Information
CPE: cpe:/o:gentoo:linux, p-cpe:/a:gentoo:linux:xz-utils
Required KB Items: Host/local_checks_enabled, Host/Gentoo/release, Host/Gentoo/qpkg-list
Exploit Available: true
Exploit Ease: Exploits are available
Patch Publication Date: 3/29/2024
Vulnerability Publication Date: 3/29/2024
Reference Information
CVE: CVE-2024-3094
IAVA: 2024-A-0327