Access Restriction Bypass Affecting glibc package, versions <2.21-1


Severity

Recommended
low

Based on Debian security rating.

Threat Intelligence

EPSS
0.04% (6th percentile)

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  • Snyk IDSNYK-DEBIAN11-GLIBC-532765
  • published9 Oct 2013
  • disclosed9 Oct 2013

Introduced: 9 Oct 2013

CVE-2013-2207  (opens in a new tab)
CWE-264  (opens in a new tab)

How to fix?

Upgrade Debian:11 glibc to version 2.21-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream glibc package and not the glibc package as distributed by Debian. See How to fix? for Debian:11 relevant fixed versions and status.

pt_chown in GNU C Library (aka glibc or libc6) before 2.18 does not properly check permissions for tty files, which allows local users to change the permission on the files and obtain access to arbitrary pseudo-terminals by leveraging a FUSE file system.

CVSS Scores

version 3.1