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NixOS Security Triage

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Coordination and triage of security issues in nixpkgs215 Servers

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19 Nov 2025
@tgerbet:matrix.orgtgerbet

https://www.openwall.com/lists/oss-security/2025/11/18/1

I will deal with it and continue to expand the never ending list of patches of grub2 🫠

19:58:53
20 Nov 2025
@fernsehmuell:matrix.orgfernsehmuell (☎️ 3376 he/him) changed their display name from fernsehmuell (he/his) to fernsehmuell (☎️ 3376 he/him).00:19:06
@user12592851:matrix.orgJohn joined the room.05:11:05
@cve:entropia.decve joined the room.13:42:24
@cve:entropia.decve

Would someone mind having a look at 462970 and 463034?

Both pull requests are open for close to two days by now and they fix a medium-severity security vulnerability in Tor, potentially leading to a remote crash.

Besides, relays on the old version are also no longer advertised in the current Tor consensus, meaning they now display a scary red warning too.

13:53:22
@cve:entropia.decve *

Would someone mind having a look at 462970 and 463034?

Both pull requests fix a medium-severity security vulnerability in Tor, potentially leading to a remote crash.

Besides, relays on the old version are also no longer advertised in the current Tor consensus, meaning they now display a scary red warning too.

13:53:38
@yzhyhalo:matrix.orgYevhen Zhyhalo joined the room.16:09:00
@hexa:lossy.networkhexa https://www.gnutls.org/security-new.html#GNUTLS-SA-2025-11-18 gnutls vcunat 19:21:32
@hexa:lossy.networkhexa3.8.11 basically19:21:44
@vcunat:matrix.orgvcunathttps://github.com/NixOS/nixpkgs/pull/46347019:21:55
21 Nov 2025
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22 Nov 2025
@hexa:lossy.networkhexahttps://seclists.org/oss-sec/2025/q4/204 libpng13:31:44
@hexa:lossy.networkhexahttp://github.com/nixos/nixpkgs/pull/46398713:32:11
23 Nov 2025
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24 Nov 2025
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25 Nov 2025
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26 Nov 2025
@mdaniels5757:matrix.orgmdaniels5757These PRs with security updates to packages (or their dependencies) have been approved by their respective maintainers, but still need to be merged. https://github.com/NixOS/nixpkgs/pull/463918 https://github.com/NixOS/nixpkgs/pull/464033 https://github.com/NixOS/nixpkgs/pull/46445102:38:48
@pyrox:pyrox.devdish [Fox/It/She]
In reply to @mdaniels5757:matrix.org
These PRs with security updates to packages (or their dependencies) have been approved by their respective maintainers, but still need to be merged. https://github.com/NixOS/nixpkgs/pull/463918 https://github.com/NixOS/nixpkgs/pull/464033 https://github.com/NixOS/nixpkgs/pull/464451
queued all, thank you
02:52:06
@hexa:lossy.networkhexahttps://www.cve.org/CVERecord?id=CVE-2025-4531119:41:10
@hexa:lossy.networkhexa* https://www.cve.org/CVERecord?id=CVE-2025-45311 fail2ban rce19:41:16
@hexa:lossy.networkhexa* https://www.cve.org/CVERecord?id=CVE-2025-45311 fail2ban19:42:54
@hexa:lossy.networkhexahttps://lobste.rs/s/p5k6aa/fail2ban_rce open discussion here19:43:01
@k900:0upti.meK900Something something petard19:43:02
@vcunat:matrix.orgvcunat

Why is it called RCE? They write

attackers with limited sudo privileges

19:43:47
@vcunat:matrix.orgvcunatThat's like a completely different level of severity.19:44:12
@hexa:lossy.networkhexaposted it before reading it fully, doesn't make sense to me yet, sorry19:44:51
@mdaniels5757:matrix.orgmdaniels5757The "vuln"s listed are different. On https://packetstorm.news/files/id/189989, the "vuln" is that when you set an arbitrary shell command to run when an IP is banned, and then an IP is banned, the arbitrary shells script runs. But on https://gist.github.com/R-Security/1c707a08f9c7f9a91d9d84b5010aaed2, it claims that there is "insufficient sanitization of variables", I see no evidence of that provided. CVE slop?20:42:47
@mdaniels5757:matrix.orgmdaniels5757I'll file an issue with upstream and see what they say.20:43:35
@mdaniels5757:matrix.orgmdaniels5757https://github.com/fail2ban/fail2ban/issues/411020:58:18

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