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CVE-2024-3094

Status Candidate

Overview

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.

Related Files

Gentoo Linux Security Advisory 202403-04
Posted Apr 1, 2024
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 202403-4 - A backdoor has been discovered in XZ utils that could lead to remote compromise of systems. Versions less than 5.6.0 are affected.

tags | advisory, remote
systems | linux, gentoo
advisories | CVE-2024-3094
SHA-256 | 5f842a94bf5c0b3dfd7216f05ebba3dbaab462828954555770b288dbf1f50b84
xz/liblzma Backdoored
Posted Mar 29, 2024
Authored by Andres Freund

It has been discovered that the upstream source tarballs for xz-utils, the XZ-format compression utilities, are compromised and inject malicious code, at build time, into the resulting liblzma5 library. Included in this archive are not only the advisory but additional data and a testing script to see if you're affected.

tags | advisory
advisories | CVE-2024-3094
SHA-256 | 24e782ee2711640bef44e50dae3e4bd40c2ec8ddbbf87dbc1461e7d4aa22e1db
Debian Security Advisory 5649-1
Posted Mar 29, 2024
Authored by Debian | Site debian.org

Debian Linux Security Advisory 5649-1 - Andres Freund discovered that the upstream source tarballs for xz-utils, the XZ-format compression utilities, are compromised and inject malicious code, at build time, into the resulting liblzma5 library.

tags | advisory
systems | linux, debian
advisories | CVE-2024-3094
SHA-256 | a36f16841d48439de0dca87969734d17803a93009098f4ca6fe3dd1c574bdc99
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