DEBIAN-CVE-2021-30465

Advisory lineage Upstream: 1 Downstream: 1
Upstream
CVE-2021-30465
Downstream
DLA-3369-1
Published: 27 May 2021, 13:15
Last modified:28 Apr 2026, 20:22

Vulnerability Summary

Overall Risk (default)
medium
34/100
CVSS Score
8.5 HIGH
3.1 (osv_debian)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

27 May 2021, 13:15
Published
Vulnerability first disclosed
28 Apr 2026, 20:22
Last Modified
Vulnerability information updated

Description

runc before 1.0.0-rc95 allows a Container Filesystem Breakout via Directory Traversal. To exploit the vulnerability, an attacker must be able to create multiple containers with a fairly specific mount configuration. The problem occurs via a symlink-exchange attack that relies on a race condition.

CVSS Metrics

  • v3.1•HIGH•Score: 8.5CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

Affected Systems

  • debian•runc

    < 1.0.0~rc93+ds1-5 | < 1.0.0~rc93+ds1-5 | < 1.0.0~rc93+ds1-5 | < 1.0.0~rc93+ds1-5

References (1)