CVE-2025-5054

Published May 30, 2025

Last updated 4 months ago

CVSS medium 4.7

Canonical Apport

Overview

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).
Source: security@ubuntu.com
NVD status: Modified
Products: apport, ubuntu_linux

Risk scores

CVSS 3.1

Type: Secondary
Base score: 4.7
Impact score: 3.6
Exploitability score: 1
Vector string: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
Severity: MEDIUM

Weaknesses

security@ubuntu.com: CWE-362

Hype score: Not currently trending

Configurations

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        "negate": false,
        "operator": "OR"
      }
    ]
  },
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]

References

Sources include official advisories and independent security research.

Overview

Risk scores

CVSS 3.1

Weaknesses

Social media

Configurations

Related CVEs

References