CVE-2025-5054
Race Condition in Canonical Apport
- Published
- Updated
- Reserved
- Assigned by
- canonical
Description
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).
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| canonicalCNA (assigner) | 3.1 | Medium4.7 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N |
| NVDNVD · Modified | 3.1 | Medium4.7 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N |
- EPSS (exploitation in 30 days)
- 0.78% · top 44% of all CVEs (6 Nov 2026)
- CISA SSVC
- Exploitation: poc · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 4.7.
Weakness
Affected products
- affected 2.20.1 – < 2.20.1-0ubuntu2.30+esm5
- affected 2.20.9 – < 2.20.9-0ubuntu7.29+esm1
- affected 2.20.11 – < 2.20.11-0ubuntu27.28
- affected 2.20.11 – < 2.20.11-0ubuntu82.7
- affected 2.28.1 – < 2.28.1-0ubuntu3.6
- affected 2.30.0 – < 2.30.0-0ubuntu4.3
- affected 2.32.0 – < 2.32.0-0ubuntu5.1
- affected 2.32.0 – < 2.33.0-0ubuntu1
- affected 2.20 – ≤ 2.32.0
References (4)
- https://ubuntu.com/security/notices/USN-7545-1 (opens in a new tab)vendor-advisory
- https://ubuntu.com/security/CVE-2025-5054 (opens in a new tab)vdb-entry
- https://www.qualys.com/2025/05/29/apport-coredump/apport-coredump.txt (opens in a new tab)third-party-advisory
- http://seclists.org/fulldisclosure/2025/Jun/9 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2025-5054)Record last updated .