Bug 2571074 (CVE-2026-84410)

Summary: CVE-2026-84410 apport: apport: Local privilege escalation via crafted crash report files
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerability-draftAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: unspecifiedKeywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in apport. When automatic crash reporting is enabled, the crash report processing service runs with root privileges and insecurely inspects executable paths specified in crash files. A local unprivileged attacker can exploit this flaw by placing a specially crafted crash file in the shared crash directory, causing the system to load and execute attacker-controlled code. Successful exploitation allows the attacker to achieve local privilege escalation to root and fully compromise the affected system.
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Description OSIDB Bzimport 2026-11-10 20:39:21 UTC 
In apport before 2.37.0, an improper privilege management vulnerability allows an unprivileged local attacker to gain root privileges on systems where automatic crash reporting is enabled. The automatic crash report processing pipeline runs as root and executes ldd on the attacker-controlled ExecutablePath field of a crash file placed in the world-writable /var/crash directory, causing the dynamic loader to load and execute an attacker-supplied audit module specified by the ELF's DT_AUDIT tag. This allows an attacker to execute arbitrary code with root privileges and fully compromise the affected system.