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Fencer Intel
medium 5.8

CVE-2013-6442 json

The owner_set function in smbcacls.c in smbcacls in Samba 4.0.x before 4.0.16 and 4.1.x before 4.1.6 removes an ACL during use of a --chown…

published 12y ago modified 4mo ago also EUVD-2013-6250

cvss
5.8
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
4.1%
EPSS 4.1% chance of exploitation in 30 days, percentile 90%
public exploits
0
none known

Summary

The owner_set function in smbcacls.c in smbcacls in Samba 4.0.x before 4.0.16 and 4.1.x before 4.1.6 removes an ACL during use of a --chown or --chgrp option, which allows remote attackers to bypass intended access restrictions in opportunistic circumstances by leveraging an unintended administrative change.

Patch / fix

  • samba Debian 14, Debian 13, Debian 12 2:4.1.6+dfsg-1

debian advisories DEBIAN-CVE-2013-6442

  • samba Ubuntu 14.04 LTS 2:4.1.3+dfsg-2ubuntu4

ubuntu advisories UBUNTU-CVE-2013-6442

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

  • samba4 RHEL 6 4.0.0-61.el6_5.rc4
  • samba4-dc RHEL 6 4.0.0-61.el6_5.rc4
  • samba4-libs RHEL 6 4.0.0-61.el6_5.rc4
  • samba4-pidl RHEL 6 4.0.0-61.el6_5.rc4
  • samba4-swat RHEL 6 4.0.0-61.el6_5.rc4
  • samba4-test RHEL 6 4.0.0-61.el6_5.rc4
  • samba4-client RHEL 6 4.0.0-61.el6_5.rc4
  • samba4-common RHEL 6 4.0.0-61.el6_5.rc4

red hat advisories RHSA-2014:0383

  • samba openSUSE Tumbleweed 4.5.0-1.1

opensuse advisories openSUSE-SU-2024:10069-1

Is CVE-2013-6442 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.

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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-2013-6442 updated cvss 4.1

samba: smbcacls will delete ACL lists in certain circumstances

  • Red Hat Enterprise Linux Desktop (v. 6) samba4 4.0.0-61.el6_5.rc4, samba4-dc 4.0.0-61.el6_5.rc4, samba4-libs 4.0.0-61.el6_5.rc4, samba4-pidl 4.0.0-61.el6_5.rc4, samba4-swat 4.0.0-61.el6_5.rc4, samba4-test 4.0.0-61.el6_5.rc4, +7 more Red Hat Enterprise Linux HPC Node (v. 6) samba4 4.0.0-61.el6_5.rc4, samba4-dc 4.0.0-61.el6_5.rc4, samba4-libs 4.0.0-61.el6_5.rc4, samba4-pidl 4.0.0-61.el6_5.rc4, samba4-swat 4.0.0-61.el6_5.rc4, samba4-test 4.0.0-61.el6_5.rc4, +7 more Red Hat Enterprise Linux Server (v. 6) samba4 4.0.0-61.el6_5.rc4, samba4-dc 4.0.0-61.el6_5.rc4, samba4-libs 4.0.0-61.el6_5.rc4, samba4-pidl 4.0.0-61.el6_5.rc4, samba4-swat 4.0.0-61.el6_5.rc4, samba4-test 4.0.0-61.el6_5.rc4, +7 more Red Hat Enterprise Linux Workstation (v. 6) samba4 4.0.0-61.el6_5.rc4, samba4-dc 4.0.0-61.el6_5.rc4, samba4-libs 4.0.0-61.el6_5.rc4, samba4-pidl 4.0.0-61.el6_5.rc4, samba4-swat 4.0.0-61.el6_5.rc4, samba4-test 4.0.0-61.el6_5.rc4, +7 more
    fixed: vendor fix RHSA-2014:0383
  • Red Hat Enterprise Linux 5 samba, samba3x Red Hat Enterprise Linux 6 samba, samba-swat, libsmbclient, samba-client, samba-common, samba-winbind, +4 more Red Hat Enterprise Linux 7 ctdb, samba, samba-dc, ctdb-tests, samba-libs, samba-pidl, +18 more
    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

4.10% chance of exploitation in the next 30 days, higher than 90% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 5.8 AV:N/AC:M/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.