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Debian Security Advisory 5649-1
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.
-----BEGIN PGP SIGNED MESSAGE-----Hash: SHA512- -------------------------------------------------------------------------Debian Security Advisory DSA-5649-1 [email protected]://www.debian.org/security/ Salvatore BonaccorsoMarch 29, 2024 https://www.debian.org/security/faq- -------------------------------------------------------------------------Package : xz-utilsCVE ID : CVE-2024-3094Andres Freund discovered that the upstream source tarballs for xz-utils,the XZ-format compression utilities, are compromised and injectmalicious code, at build time, into the resulting liblzma5 library.Right now no Debian stable versions are known to be affected.Compromised packages were part of the Debian testing, unstable andexperimental distributions, with versions ranging from 5.5.1alpha-0.1(uploaded on 2024-02-01), up to and including 5.6.1-1. The package hasbeen reverted to use the upstream 5.4.5 code, which we have versioned5.6.1+really5.4.5-1.Users running Debian testing and unstable are urged to update thexz-utils packages.For the detailed security status of xz-utils please refer toits security tracker page at:https://security-tracker.debian.org/tracker/xz-utilsFurther information about Debian Security Advisories, how to applythese updates to your system and frequently asked questions can befound at: https://www.debian.org/security/Mailing list: [email protected] PGP SIGNATURE-----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522l-----END PGP SIGNATURE-----Related news
March 29, 2024 is a day that will hardly be forgotten by the open source community: Andres Freund disclosed his findings about the compromise in the xz compression library, which would enable an attacker to silently gain access to a targeted affected system. How did that coordination work under the hood? In this article we will give a behind the scenes glimpse into what this looked like at Red Hat.DiscoveryOn Wednesday, March 27, Andres contacted the Debian security team via their contact email ([email protected]) and let them know about the oddities he found in a SSH slowdown when using a n
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Updated March 30, 2024: We have determined that Fedora Linux 40 beta does contain two affected versions of xz libraries - xz-libs-5.6.0-1.fc40.x86_64.rpm and xz-libs-5.6.0-2.fc40.x86_64.rpm. At this time, Fedora 40 Linux does not appear to be affected by the actual malware exploit, but we encourage all Fedora 40 Linux beta users to revert to 5.4.x versions.Editor's note: This post has been updated to more clearly articulate the affected versions of Fedora Linux and add additional mitigation methods.Yesterday, Red Hat Information Risk and Security and Red Hat Product Security learned that the l