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CVE-2024-3094

UNKNOWN
Published 2024-03-29T16:51:12.588Z
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Expert Analysis

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CVSS Score

V3.1
10.0
/10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Base Score Metrics
Exploitability: N/A Impact: N/A

EPSS Score

v2025.03.14
0.840
probability
of exploitation in the wild

There is a 84.0% chance that this vulnerability will be exploited in the wild within the next 30 days.

Updated: 2025-06-25
Exploit Probability
Percentile: 0.992
Higher than 99.2% of all CVEs

Attack Vector Metrics

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED

Impact Metrics

Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH

Description

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.

Available Exploits

XZ - Embedded Malicious Code

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.

ID: CVE-2024-3094
Author: pdteam Critical

Related News

No news articles found for this CVE.

Affected Products

GitHub Security Advisories

Community-driven vulnerability intelligence from GitHub

⚠ Unreviewed CRITICAL

GHSA-rxwq-x6h5-x525

Advisory Details

Malicious code was discovered in the upstream tarballs of xz, starting with version 5.6.0. The tarballs included extra .m4 files, which contained instructions for building with automake that did not exist in the repository. These instructions, through a series of complex obfuscations, extract a prebuilt object file from one of the test archives, which is then used to modify specific functions in the code while building the liblzma package. This issue results in liblzma being used by additional software, like sshd, to provide functionality that will be interpreted by the modified functions.

CVSS Scoring

CVSS Score

9.0

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Advisory provided by GitHub Security Advisory Database. Published: March 29, 2024, Modified: March 29, 2024

Social Media Intelligence

Real-time discussions and threat intelligence from social platforms

2 posts
Reddit 1 month, 1 week ago
NouveauMonde
Payload

I love Debian's stability and security, but wondering, how do you decide to use an older debian package or use flatpack/backport for newer version. eg for neovim I just installed Debian 13 arm on vmware on a macbook, as I'm planning my Apple exit; So, neovim is at v0.10.4 on …

Also mentions: CVE-2014-0160
1
11
23.0
Reddit 1 month, 2 weeks ago
Prestigiouspite

Is the Composer ecosystem still healthy? 180 MB and 36,000 files for two simple packages. I just went through a fresh `composer require` for two packages: `microsoft/microsoft-graph` and `vlucas/phpdotenv`. My goal was simple: interact with the Microsoft Graph API and handle environment variables. After the installation, I was shocked to …

Also mentions: CVE-2021-44228

References

Published: 2024-03-29T16:51:12.588Z
Last Modified: 2025-08-19T01:03:12.439Z
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