Bug 2552067 (CVE-2026-110331) - CVE-2026-110331 abrt: abrt: incomplete CVE-2026-54228/54229 fix — completeness gate bypassed via attacker-supplied count element
Summary: CVE-2026-110331 abrt: abrt: incomplete CVE-2026-54228/54229 fix — completenes...
Keywords:
Status: NEW
Alias: CVE-2026-110331
Deadline: 2026-11-17
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-10-14 03:44 UTC by OSIDB Bzimport
Modified: 2026-11-13 20:53 UTC (History)
3 users (show)

Fixed In Version:
Clone Of:
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Description OSIDB Bzimport 2026-10-14 03:44:53 UTC
A flaw was found in abrt. The fix for CVE-2026-54228 and CVE-2026-54229 gates SetElement, DeleteElement, and ChownProblemDir on problem_dump_dir_is_complete(), which is implemented solely as the presence of a "count" dump element. An unprivileged caller can supply "count" via NewProblem or SetElement, so the directory appears complete from creation and the guard passes while root post-create/notify handlers are still processing the dump. Separately, the Problems2 SaveElements/DeleteElements methods and DeleteProblem lack the completeness guard. A local attacker can thereby re-open the original element-poisoning and dump-directory ownership-seizure primitives.


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