CVE-2023-28642CWE-281

AppArmor bypass with symlinked /proc in runc

Medium · published March 29, 2023

CVSS v3.1
6.1
EPSS
0%
Percentile
26.6
In the wild
Unconfirmed
What it is

runc is a CLI tool for spawning and running containers according to the OCI specification. It was found that AppArmor can be bypassed when `/proc` inside the container is symlinked with a specific mount configuration. This issue has been fixed in runc version 1.1.5, by prohibiting symlinked `/proc`. See PR #3785 for details. users are advised to upgrade. Users unable to upgrade should avoid using an untrusted container image.

The record
Technical detail
CVSS v3.1
6.1 · MEDIUM
Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
CVSS v4.0
Not supplied
EPSS
0.00343 · 26.6th percentile
Weakness
CWE-281 · Improper Preservation of Permissions
Published
2023-03-29T18:15Z
EPSS history
Timeline
  • 29 MAR 18:15Z
    AppArmor bypass with symlinked /proc in runc
    cvelistv5