CVE-2023-34241
CVE-2023-34241 · CUPS vulnerable to use-after-free in cupsdAcceptClient()
Cette page présente des faits issus de sources publiques. Consultez l’avis original avant toute mise à jour.
OpenPrinting CUPS is a standards-based, open source printing system for Linux and other Unix-like operating systems. Starting in version 2.0.0 and prior to version 2.4.6, CUPS logs data of free memory to the logging service AFTER the connection has been closed, when it should have logged the data right before. This is a use-after-free bug that impacts the entire cupsd process. The exact cause of this issue is the function `httpClose(con->http)` being called in `scheduler/client.c`. The problem is that httpClose always, provided its argument is not null, frees the pointer at the end of the call, only for cupsdLogClient to pass the pointer to httpGetHostname. This issue happens in function `cupsdAcceptClient` if LogLevel is warn or higher and in two scenarios: there is a double-lookup for the IP Address (HostNameLookups Double is set in `cupsd.conf`) which fails to resolve, or if CUPS is compiled with TCP wrappers and the connection is refused by rules from `/etc/hosts.allow` and `/etc/hosts.deny`. Version 2.4.6 has a patch for this issue.
CVSS 5.3 · Moyenne · EPSS 1,4% · Correctif disponible
- Publication
- Mise à jour
Pile logicielle: system
Produits et versions concernés
cups
- Versions du logiciel
- >= 2.0.0, < 2.4.6: Concernée
Aucun correctif publié
cups Debian:12
- Versions du logiciel
- 2.4.2-3
- Plages de versions concernées
- ECOSYSTEM: < 2.4.2-3+deb12u1
Mettez à jour vers 2.4.2-3+deb12u1
cups Debian:13
- Plages de versions concernées
- ECOSYSTEM: < 2.4.2-5
Mettez à jour vers 2.4.2-5
cups Debian:14
- Plages de versions concernées
- ECOSYSTEM: < 2.4.2-5
Mettez à jour vers 2.4.2-5
cups Ubuntu:Pro:16.04:LTS
- Versions du logiciel
- 2.1.0-4ubuntu3
- 2.1.0-5
- 2.1.0-6
- 2.1.0-6ubuntu1
- 2.1.0-7
- 2.1.2-1
- 2.1.2-2
- 2.1.3-1
- 2.1.3-1build1
- 2.1.3-3
- 2.1.3-4
- 2.1.3-4ubuntu0.2
- 2.1.3-4ubuntu0.3
- 2.1.3-4ubuntu0.4
- 2.1.3-4ubuntu0.5
- 2.1.3-4ubuntu0.6
- 2.1.3-4ubuntu0.7
- 2.1.3-4ubuntu0.8
- 2.1.3-4ubuntu0.9
- 2.1.3-4ubuntu0.10
- 2.1.3-4ubuntu0.11
- 2.1.3-4ubuntu0.11+esm1
- 2.1.3-4ubuntu0.11+esm2
- Plages de versions concernées
- ECOSYSTEM: < 2.1.3-4ubuntu0.11+esm3
Mettez à jour vers 2.1.3-4ubuntu0.11+esm3
cups Ubuntu:Pro:18.04:LTS
- Versions du logiciel
- 2.2.4-7ubuntu2
- 2.2.5-2
- 2.2.6-2
- 2.2.6-3
- 2.2.6-4
- 2.2.6-5
- 2.2.7-1ubuntu1
- 2.2.7-1ubuntu2
- 2.2.7-1ubuntu2.1
- 2.2.7-1ubuntu2.2
- 2.2.7-1ubuntu2.3
- 2.2.7-1ubuntu2.4
- 2.2.7-1ubuntu2.5
- 2.2.7-1ubuntu2.6
- 2.2.7-1ubuntu2.7
- 2.2.7-1ubuntu2.8
- 2.2.7-1ubuntu2.9
- 2.2.7-1ubuntu2.10
- Plages de versions concernées
- ECOSYSTEM: < 2.2.7-1ubuntu2.10+esm1
Mettez à jour vers 2.2.7-1ubuntu2.10+esm1
cups Ubuntu:20.04:LTS
- Versions du logiciel
- 2.2.12-2ubuntu1
- 2.3.0-6
- 2.3.0-7
- 2.3.0-7ubuntu1
- 2.3.1-1ubuntu1
- 2.3.1-2
- 2.3.1-4
- 2.3.1-7
- 2.3.1-9ubuntu1
- 2.3.1-9ubuntu1.1
- 2.3.1-9ubuntu1.2
- 2.3.1-9ubuntu1.3
- Plages de versions concernées
- ECOSYSTEM: < 2.3.1-9ubuntu1.4
Mettez à jour vers 2.3.1-9ubuntu1.4
cups Ubuntu:22.04:LTS
- Versions du logiciel
- 2.3.3op2-7ubuntu2
- 2.4.1op1-1ubuntu1
- 2.4.1op1-1ubuntu2
- 2.4.1op1-1ubuntu3
- 2.4.1op1-1ubuntu4
- 2.4.1op1-1ubuntu4.1
- 2.4.1op1-1ubuntu4.2
- Plages de versions concernées
- ECOSYSTEM: < 2.4.1op1-1ubuntu4.4
Mettez à jour vers 2.4.1op1-1ubuntu4.4
Sources originales
- https://github.com/OpenPrinting/cups/security/advisories/GHSA-qjgh-5hcq-5f25
- https://github.com/OpenPrinting/cups/commit/9809947a959e18409dcf562a3466ef246cb90cb2
- https://github.com/OpenPrinting/cups/releases/tag/v2.4.6
- http://www.openwall.com/lists/oss-security/2023/06/23/10
- http://www.openwall.com/lists/oss-security/2023/06/26/1
- https://lists.fedoraproject.org/archives/list/[email protected]/message/TBIYKDS3UG3W4Z7YOHTR2AWFNBRYPNYY/
- https://lists.debian.org/debian-lts-announce/2023/06/msg00038.html
- https://lists.fedoraproject.org/archives/list/[email protected]/message/7I7DWGYGEMBNLZF5UQBMF3SONR37YUBN/
- https://support.apple.com/kb/HT213843
- https://support.apple.com/kb/HT213844
- https://support.apple.com/kb/HT213845
- https://nvd.nist.gov/vuln/detail/CVE-2023-34241