Bug 58623 - libcap2: Multiple issues (5.2)
Summary: libcap2: Multiple issues (5.2)
Status: CLOSED FIXED
Alias: None
Product: UCS
Classification: Unclassified
Component: Security updates
Version: UCS 5.2
Hardware: All Linux
: P3 normal
Target Milestone: UCS 5.2-3-errata
Assignee: Quality Assurance
QA Contact: Dirk Wiesenthal
URL:
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Reported: 2025-09-10 11:31 CEST by Quality Assurance
Modified: 2025-09-17 14:09 CEST (History)
1 user (show)

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What kind of report is it?: Security Issue
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Max CVSS v3 score: 6.1 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N) NVD

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Description Quality Assurance univentionstaff 2025-09-10 11:31:52 CEST 
New Debian libcap2 1:2.66-4+deb12u2 fixes:
This update addresses the following issue:
* The PAM module pam_cap.so of libcap configuration supports group names  starting with “@”, during actual parsing, configurations not starting with  “@” are incorrectly recognized as group names. This may result in  nonintended users being granted an inherited capability set, potentially  leading to security risks. Attackers can exploit this vulnerability to  achieve local privilege escalation on systems where  /etc/security/capability.conf is used to configure user inherited  privileges by constructing specific usernames. (CVE-2025-1390)
1:2.66-4+deb12u2 (Fri, 30 May 2025 12:13:17 +0200)
[ Aurelien Jarno ]
* Add missing Built-Using: glibc
Comment 1 Quality Assurance univentionstaff 2025-09-10 12:00:58 CEST 
--- mirror/ftp/pool/main/libc/libcap2/libcap2_2.66-4+deb12u1.dsc
+++ apt/ucs_5.2-0-errata5.2-3/source/libcap2_2.66-4+deb12u2.dsc
@@ -1,3 +1,8 @@
+1:2.66-4+deb12u2 [Fri, 30 May 2025 12:13:17 +0200] Christian Kastner <ckk@debian.org>:
+
+  [ Aurelien Jarno ]
+  * Add missing Built-Using: glibc (Closes: #1106802)
+
 1:2.66-4+deb12u1 [Sat, 15 Mar 2025 13:43:35 +0100] Christian Kastner <ckk@debian.org>:
 
   * Cherry-pick patch fixing CVE-2025-1390.

<http://piuparts.knut.univention.de/5.2-3/#3739234852767611211>
Comment 2 Dirk Wiesenthal univentionstaff 2025-09-11 17:46:29 CEST 
OK: YAML
OK: Tests
OK: piuparts
Comment 3 Christian Castens univentionstaff 2025-09-17 14:09:14 CEST 
<https://errata.software-univention.de/#/?erratum=5.2x197>