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.
References
Configurations
Configuration 1 (hide)
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Configuration 2 (hide)
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History
21 Nov 2024, 08:06
Type | Values Removed | Values Added |
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CVSS |
v2 : v3 : |
v2 : unknown
v3 : 5.3 |
References | () http://www.openwall.com/lists/oss-security/2023/06/23/10 - Mailing List, Third Party Advisory | |
References | () http://www.openwall.com/lists/oss-security/2023/06/26/1 - Mailing List, Third Party Advisory | |
References | () https://github.com/OpenPrinting/cups/commit/9809947a959e18409dcf562a3466ef246cb90cb2 - Patch | |
References | () https://github.com/OpenPrinting/cups/releases/tag/v2.4.6 - Release Notes | |
References | () https://github.com/OpenPrinting/cups/security/advisories/GHSA-qjgh-5hcq-5f25 - Exploit, Patch, Vendor Advisory | |
References | () https://lists.debian.org/debian-lts-announce/2023/06/msg00038.html - Mailing List | |
References | () https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7I7DWGYGEMBNLZF5UQBMF3SONR37YUBN/ - Mailing List | |
References | () https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TBIYKDS3UG3W4Z7YOHTR2AWFNBRYPNYY/ - Mailing List, Third Party Advisory | |
References | () https://support.apple.com/kb/HT213843 - Third Party Advisory | |
References | () https://support.apple.com/kb/HT213844 - Third Party Advisory | |
References | () https://support.apple.com/kb/HT213845 - Third Party Advisory |
17 Nov 2023, 19:33
Type | Values Removed | Values Added |
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CPE | cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:* cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* |
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References | (MISC) https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7I7DWGYGEMBNLZF5UQBMF3SONR37YUBN/ - Mailing List | |
References | (MISC) https://support.apple.com/kb/HT213843 - Third Party Advisory | |
References | (MISC) https://support.apple.com/kb/HT213845 - Third Party Advisory | |
References | (MISC) https://support.apple.com/kb/HT213844 - Third Party Advisory | |
References | (MISC) https://lists.debian.org/debian-lts-announce/2023/06/msg00038.html - Mailing List | |
First Time |
Debian
Apple macos Apple Debian debian Linux |
28 Jul 2023, 21:15
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References |
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14 Jul 2023, 03:15
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References |
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30 Jun 2023, 21:15
Type | Values Removed | Values Added |
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References |
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30 Jun 2023, 19:05
Type | Values Removed | Values Added |
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CPE | cpe:2.3:a:openprinting:cups:*:*:*:*:*:*:*:* cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:* |
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CVSS |
v2 : v3 : |
v2 : unknown
v3 : 7.1 |
References | (MISC) http://www.openwall.com/lists/oss-security/2023/06/23/10 - Mailing List, Third Party Advisory | |
References | (MISC) http://www.openwall.com/lists/oss-security/2023/06/26/1 - Mailing List, Third Party Advisory | |
References | (MISC) https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TBIYKDS3UG3W4Z7YOHTR2AWFNBRYPNYY/ - Mailing List, Third Party Advisory | |
References | (MISC) https://github.com/OpenPrinting/cups/security/advisories/GHSA-qjgh-5hcq-5f25 - Exploit, Patch, Vendor Advisory | |
References | (MISC) https://github.com/OpenPrinting/cups/commit/9809947a959e18409dcf562a3466ef246cb90cb2 - Patch | |
References | (MISC) https://github.com/OpenPrinting/cups/releases/tag/v2.4.6 - Release Notes | |
First Time |
Openprinting cups
Openprinting Fedoraproject Fedoraproject fedora |
30 Jun 2023, 03:15
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26 Jun 2023, 15:15
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23 Jun 2023, 18:15
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22 Jun 2023, 23:15
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New CVE |
Information
Published : 2023-06-22 23:15
Updated : 2024-11-21 08:06
NVD link : CVE-2023-34241
Mitre link : CVE-2023-34241
CVE.ORG link : CVE-2023-34241
JSON object : View
Products Affected
debian
- debian_linux
apple
- macos
openprinting
- cups
fedoraproject
- fedora
CWE
CWE-416
Use After Free