CVE Alert: CVE-2025-5054

Vulnerability Summary: CVE-2025-5054

Race condition in Canonical apport up to and including 2.32.0 allows a local attacker to leak sensitive information via PID-reuse by leveraging namespaces. When handling a crash, the function `_check_global_pid_and_forward`, which detects if the crashing process resided in a container, was being called before `consistency_checks`, which attempts to detect if the crashing process had been replaced. Because of this, if a process crashed and was quickly replaced with a containerized one, apport could be made to forward the core dump to the container, potentially leaking sensitive information. `consistency_checks` is now being called before `_check_global_pid_and_forward`. Additionally, given that the PID-reuse race condition cannot be reliably detected from userspace alone, crashes are only forwarded to containers if the kernel provided a pidfd, or if the crashing process was unprivileged (i.e., if dump mode == 1).

Affected Endpoints:

No affected endpoints listed.

Published Date:

5/30/2025, 6:15:32 PM

⚠️ CVSS Score:

Exploit Status:

Not Exploited

References:

• https://ubuntu.com/security/CVE-2025-5054
• https://ubuntu.com/security/notices/USN-7545-1
• https://www.qualys.com/2025/05/29/apport-coredump/apport-coredump.txt

Recommended Action:

No proposed action available. Please refer to vendor documentation for updates.

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