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[SID - Unstable] backdoor in upstream xz affecting openssh

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lindi
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[SID - Unstable] backdoor in upstream xz affecting openssh

#1 Post by lindi »

There seems to be a backdoor in the upstream xz release that affects openssh in unstable: https://www.openwall.com/lists/oss-secu ... 24/03/29/4

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Re: [SID - Unstable] backdoor in upstream xz affecting openssh

#2 Post by fabien »

Thank you @lindi
The version in testing and unstable has been updated in the main repository
xz-utils (5.6.1+really5.4.5-1) unstable; urgency=critical

* Non-maintainer upload by the Security Team.
* Revert back to the 5.4.5-0.2 version

-- Salvatore Bonaccorso <carnil@debian.org> Thu, 28 Mar 2024 15:59:38 +0100
Therefore, updating to 5.6.1+really5.4.5-1 is safe and recommended.
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Re: [SID - Unstable] backdoor in upstream xz affecting openssh

#3 Post by lindi »

Updating is safe but we don't know what the obfuscated backdoor code did. It might persist even after you upgrade the package itself.

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Re: [SID - Unstable] backdoor in upstream xz affecting openssh

#4 Post by Narodnaya Volya »

Is there any news on the current situation ?
12.6 freezed?

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Re: [SID - Unstable] backdoor in upstream xz affecting openssh

#5 Post by sunrat »

Narodnaya Volya wrote: 2024-04-07 03:37 Is there any news on the current situation ?
12.6 freezed?
It never affected Stable, only Testing and Unstable.
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Re: [SID - Unstable] backdoor in upstream xz affecting openssh

#6 Post by Narodnaya Volya »

sunrat wrote: 2024-04-07 08:52
Narodnaya Volya wrote: 2024-04-07 03:37 Is there any news on the current situation ?
12.6 freezed?
It never affected Stable, only Testing and Unstable.
Im aware of this.
https://linuxiac.com/debian-decided-to- ... 6-release/
12.6 Postponed for security reasons. But no news here.

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Re: [SID - Unstable] backdoor in upstream xz affecting openssh

#7 Post by fabien »

Narodnaya Volya wrote: 2024-04-07 10:27 12.6 Postponed for security reasons. But no news here.
Monitor the Debian News subforum: 2024-03-31
Although no Debian stable versions are known to be affected by CVE-2024-3094 the next point release for 12.6 has been postponed while we investigate the effects of this CVE on the Archive.
It is hard work that demands and deserves serenity.
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