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🛡️ CVE-2025-5054 — apport

🟡 CVSS 4.7 — Medium ⚠️ Exploit Public CWE-362 NVD
4.7
CVSS Score
0 Low4 Medium7 High9 Critical10

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).

How this vulnerability can be exploited

This issue can be reached with local access to the system, attack complexity is high, an attacker needs low-level privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity none, availability none.

CVSS metrics in full

The score comes from this vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N

  • Attack vector: Local — a local account, shell or session on the host is needed.
  • Attack complexity: High — the attacker first has to win a race, learn a secret or otherwise prepare the target.
  • Privileges required: Low — an ordinary user account is enough.
  • User interaction: None — nobody has to be tricked into anything.
  • Scope: Unchanged — the damage stays inside the vulnerable component.
  • Confidentiality impact: High — total loss, or loss the attacker controls.
  • Integrity impact: None.
  • Availability impact: None.

Weakness class

CVE-2025-5054 is classified as CWE-362: Race Condition. Concurrent operations share state without proper synchronisation, so timing decides whether the result is correct.

Affected software

CVE-2025-5054 is recorded against 2 packages.

  • apport (fixed in 2.32.0)
  • ubuntu-linux

Timeline and source

Published on 30 May 2025 and last revised on 17 June 2026. A public exploit is known to exist, which raises the urgency of patching considerably. Record sourced from NVD.

References

ubuntu.com
ubuntu.com
www.qualys.com
seclists.org

Other advisories for this package

apport has other advisories on record. If you are patching this one, these are worth checking on the same host:

Same weakness in other software

These advisories are the same class of weakness (CWE-362: Race Condition) in other software:

CVE-2025-5054 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Details

Severity MEDIUM
CVSS Score 4.7
CVSS Vector CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
CWE CWE-362
Public Exploit ⚠️ Yes
Source NVD
Published 2025-05-30
Updated 2026-08-20
Modified 2026-06-17
Fix URL N/A

Affected Packages

Software From version Fixed in
apport — 2.32.0
ubuntu-linux — —

Similar Threats

Exploit Protection

Are you running apport?

CVE-2025-5054 carries CVSS 4.7 Medium rating and a public exploit already exists. BotEraser checks your installation against this and other known CVE records, and blocks IPs associated with exploit activity.

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ⓘ Data Notice: The information presented above has been compiled from publicly available internet sources. Boteraser aggregates this data solely for informational purposes and does not independently classify, evaluate, or endorse any findings about the vulnerabilities listed. The accuracy and completeness of this information is the sole responsibility of the original publishers. Boteraser and its operators accept no liability for any decisions made based on this data.

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