CVE-2012-6150: canonical ubuntu_linux Improper Input Validation
Vulnerability summary
CVE-2012-6150 is a low (CVSS 3.6) Improper Input Validation vulnerability in canonical ubuntu_linux. EPSS estimates a 3.79% chance of exploitation in the next 30 days, higher than 89.8% of scored vulnerabilities. 2 public exploits are recorded.
Advisory lineage
Upstream 0 · Downstream 4 · Related 1Timeline
- 03-12-2013PublishedVulnerability first disclosed.
- 06-08-2024Last modifiedVulnerability information updated.
Description
The winbind_name_list_to_sid_string_list function in nsswitch/pam_winbind.c in Samba through 4.1.2 handles invalid require_membership_of group names by accepting authentication by any user, which allows remote authenticated users to bypass intended access restrictions in opportunistic circumstances by leveraging an administrator's pam_winbind configuration-file mistake.
CVSS metrics
1 score · 1 source · 1 versionEPSS trend
Probability
3.79%
Chance of exploitation in the next 30 days
Percentile
90%
Versus all other CVEs
30-day change
0.00 pp
From 3.79% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
2 foundExploit Reference (lists.samba.org)
Maturity: unknown
Exploit Reference (lists.samba.org)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Canonical1 product
- ubuntu_linuxEOL10.04 | 12.04 | 12.10 | 13.04 | 13.10
Debian1 product
- samba< 2:4.0.13+dfsg-1
Samba1 product
- samba≥ 3.3.10, < 3.4.0 | ≥ 3.4.3, < 3.6.22 | ≥ 4.0.0, < 4.0.13 | ≥ 4.1.0, < 4.1.3
Ubuntu1 product
- samba< 2:4.0.13+dfsg-1ubuntu1
4 vendors · 4 products
References
22 links- marc.info?l=bugtraq&m=141660010015249&w=2Vendor AdvisoryX Refsource HPMailing ListThird Party Advisory
- lists.samba.org/archive/samba-technical/2012-June/084593.htmlMailing ListX Refsource MLISTExploitVendor AdvisoryREPORT
- lists.fedoraproject.org/pipermail/package-announce/2014-August/136864.htmlVendor AdvisoryX Refsource FEDORAMailing ListThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2014-01/msg00002.htmlVendor AdvisoryX Refsource SUSEMailing ListThird Party Advisory
- lists.opensuse.org/opensuse-updates/2014-03/msg00063.htmlVendor AdvisoryX Refsource SUSEMailing ListThird Party Advisory
- lists.fedoraproject.org/pipermail/package-announce/2014-June/134717.htmlVendor AdvisoryX Refsource FEDORAMailing ListThird Party Advisory
- lists.opensuse.org/opensuse-updates/2013-12/msg00088.htmlVendor AdvisoryX Refsource SUSEMailing ListThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2016-04/msg00047.htmlVendor AdvisoryX Refsource SUSEMailing ListThird Party Advisory
Show all 22 references
- lists.opensuse.org/opensuse-security-announce/2016-04/msg00048.htmlVendor AdvisoryX Refsource SUSEMailing ListThird Party Advisory
- lists.samba.org/archive/samba-technical/2013-November/096411.htmlMailing ListX Refsource MLISTExploitVendor AdvisoryREPORT
- www.mandriva.com/security/advisories?name=MDVSA-2013:299Vendor AdvisoryX Refsource MANDRIVAThird Party Advisory
