CVE-2026-110331: Abrt: abrt: incomplete cve-2026-54228/54229 fix — completeness gate bypassed via attacker-supplied count element
A flaw was found in abrt. The completeness check introduced to mitigate CVE-2026-54228 and CVE-2026-54229 only verifies that a dump directory contains a "count" element, which an unprivileged user can create. This allows a local attacker to bypass the guard and again poison elements in, or seize ownership of, dump directories while privileged ABRT handlers are processing them. Related Problems2 mutating methods remain ungated by the same check.
Affected Software
Event History
Frequently Asked Questions
Who can exploit this issue?
An unprivileged local user can exploit it. The attack requires local access and low privileges; no user interaction is required.
What condition allows the completeness gate to be bypassed?
The check only verifies that a dump directory contains a "count" element. An attacker can create that element themselves, causing the directory to appear complete to the guard.
What could an attacker do after bypassing the check?
While privileged ABRT handlers process the dump directory, the attacker may poison directory elements or seize ownership of the dump directory. The impact includes confidentiality, integrity, and availability consequences.
Are related Problems2 operations also protected by this check?
No. Related Problems2 mutating methods remain ungated by the same completeness check.