Description (CNA)
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 (CNA)
| Vendor / product | Versions |
|---|---|
| Canonical / Apport | affected 2.20.1 before 2.20.1-0ubuntu2.30+esm5; affected 2.20.9 before 2.20.9-0ubuntu7.29+esm1; affected 2.20.11 before 2.20.11-0ubuntu27.28; affected 2.20.11 before 2.20.11-0ubuntu82.7; affected 2.28.1 before 2.28.1-0ubuntu3.6; affected 2.30.0 before 2.30.0-0ubuntu4.3; affected 2.32.0 before 2.32.0-0ubuntu5.1; affected 2.32.0 before 2.33.0-0ubuntu1; affected 2.20 through 2.32.0 |
CWE
CWE-362
References
- https://ubuntu.com/security/notices/USN-7545-1
- https://ubuntu.com/security/CVE-2025-5054
- https://www.qualys.com/2025/05/29/apport-coredump/apport-coredump.txt
ADP enrichment
No English description supplied.
No references supplied.
No English description supplied.