Skip to content
Fencer Intel
low 2.6

CVE-2013-2207 json

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 c…

published 13y ago modified 4mo ago also EUVD-2013-2162

cvss
2.6
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 29%
public exploits
0
none known

Summary

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.

Patch / fix

  • glibc Debian 14, Debian 13, Debian 12 2.21-1

debian advisories DEBIAN-CVE-2013-2207

  • eglibc Ubuntu 14.04 LTS 2.19-0ubuntu6.8

ubuntu advisories UBUNTU-CVE-2013-2207

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • glibc SLES for SAP 11 SP4, SLES for SAP 11 SP3, SLES 11 SP4 +6 more 2.11.3-17.87.3
  • glibc SLES 11 SP2-LTSS 2.11.3-17.45.66.1

suse advisories SUSE-SU-2016:0470-1SUSE-SU-2015:1424-1

  • glibc openSUSE Tumbleweed 2.24-2.3

opensuse advisories openSUSE-SU-2024:10154-1

Is CVE-2013-2207 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

Check with Fencer

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2013-2207 updated cvss 2.6

(pt_chown): Improper pseudotty ownership and permissions changes when granting access to the slave pseudoterminal

  • Red Hat Enterprise Linux 5 glibc Red Hat Enterprise Linux 6 nscd, glibc, glibc-utils, glibc-common Red Hat Enterprise Linux 7 nscd, glibc, glibc-utils, glibc-common
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.35% chance of exploitation in the next 30 days, higher than 29% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 2.6 AV:L/AC:H/Au:N/C:P/I:P/A:N

Classification

Weakness
  • CWE-264 Permissions, Privileges, and Access Controls

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.