Mageia alert MGASA-2026-0221 (libcap)

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Mageia Updates <updates-announce@ml.mageia.org>
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updates-announce@ml.mageia.org
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[updates-announce] MGASA-2026-0221: Updated libcap packages fix security vulnerabilities
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Thu, 18 Jun 2026 09:23:38 +0200
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<20260618072338.A2A59A0E34@duvel.mageia.org>
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Article
MGASA-2026-0221 - Updated libcap packages fix security vulnerabilities

Publication date: 18 Jun 2026
URL: https://advisories.mageia.org/MGASA-2026-0221.html
Type: security
Affected Mageia releases: 9
CVE: CVE-2026-4878

Description:
CVE-2026-4878. A flaw was found in libcap. A local unprivileged user can
exploit a Time-of-check-to-time-of-use (TOCTOU) race condition in the
`cap_set_file()` function. This allows an attacker with write access to
a parent directory to redirect file capability updates to an
attacker-controlled file. By doing so, capabilities can be injected into
or stripped from unintended executables, leading to privilege
escalation.

References:
- https://bugs.mageia.org/show_bug.cgi?id=35329
- https://www.openwall.com/lists/oss-security/2026/04/07/4
- https://www.openwall.com/lists/oss-security/2026/04/07/14
- https://www.cve.org/CVERecord?id=CVE-2026-4878

SRPMS:
- 9/core/libcap-2.52-5.2.mga9