Bug 2431279

Summary: CVE-2025-15281 glibc: wordexp with WRDE_REUSE and WRDE_APPEND may return uninitialized memory [fedora-42]
Product: [Fedora] Fedora Reporter: Guilherme de Almeida Suckevicz <gsuckevi>
Component: glibcAssignee: Florian Weimer <fweimer>
Status: CLOSED ERRATA QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: low Docs Contact:
Priority: low    
Version: 42CC: arjun, codonell, dj, fberat, fweimer, jlaw, josmyers, mcermak, mcoufal, mfabian, pfrankli, sipoyare, skolosov, suraj.ghimire7
Target Milestone: ---Keywords: Security, SecurityTracking
Target Release: ---Flags: codonell: mirror+
Hardware: Unspecified   
OS: Unspecified   
Whiteboard: {"flaws": ["11b64a62-3b2e-43d9-b6b7-d98c436a2c31"]}
Fixed In Version: glibc-2.41-16.fc42 Doc Type: ---
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2026-01-27 06:42:49 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On:    
Bug Blocks: 2431196    

Description Guilherme de Almeida Suckevicz 2026-01-20 17:16:58 UTC 
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.
Comment 1 Fedora Update System 2026-01-23 23:04:55 UTC 
FEDORA-2026-a2f3af8a86 (glibc-2.41-16.fc42) has been submitted as an update to Fedora 42.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-a2f3af8a86
Comment 2 Fedora Update System 2026-01-25 01:36:16 UTC 
FEDORA-2026-a2f3af8a86 has been pushed to the Fedora 42 testing repository.
Soon you'll be able to install the update with the following command:
`sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2026-a2f3af8a86`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-a2f3af8a86

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.
Comment 3 Fedora Update System 2026-01-27 06:42:49 UTC 
FEDORA-2026-a2f3af8a86 (glibc-2.41-16.fc42) has been pushed to the Fedora 42 stable repository.
If problem still persists, please make note of it in this bug report.