Vulnerability in Samba
CVE-2016-2126
Samba version 4.0.0 up to 4.5.2 is vulnerable to privilege elevation due to incorrect handling of the PAC (Privilege Attribute Certificate) checksum. A remote, authenticated, attacker can cause the winbindd process to crash using a legitimate Kerberos ticket. A local service with access to the winbindd privileged pipe can cause winbindd to cache elevated access permissions.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.066 (93.6th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 94th percentile — 93.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.066 · newest: 0.066 · change: 0.000
Affected products
Weakness classification (CWE)
References
- www.samba.org/samba/security/CVE-2016-2126.html (Vendor Advisory)
- www.securitytracker.com/id/1037495 (VDB Entry, Third Party Advisory, vdb-entry)
- rhn.redhat.com/errata/RHSA-2017-0495.html (vendor-advisory, Third Party Advisory)
- rhn.redhat.com/errata/RHSA-2017-0494.html (vendor-advisory, Third Party Advisory)
- kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA43730 (Third Party Advisory)
- access.redhat.com/errata/RHSA-2017:1265 (vendor-advisory, Third Party Advisory)
- www.securityfocus.com/bid/94994 (VDB Entry, Third Party Advisory, vdb-entry)
- rhn.redhat.com/errata/RHSA-2017-0744.html (vendor-advisory, Third Party Advisory)
- rhn.redhat.com/errata/RHSA-2017-0662.html (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2016-2126?
- CVE-2016-2126 is a medium-severity vulnerability in Samba, classified under CWE-264. CVSS score: 6.5/10. Published 2017-05-11.
- How severe is CVE-2016-2126?
- Medium severity. CVSS v3 base score is 6.5 out of 10.