CVE-2016-2126

MEDIUM
6.5
CVSS Score
Published: May 11, 2017 at 02:01 PM UTC
Updated: June 17, 2026 at 12:43 AM UTC
1 product affected across 1 vendorSAMBA

Using N/A by N/A?

Get instant alerts when new vulnerabilities affect N/A - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Severity
MEDIUM6.5
Exploit prediction
EPSS 7%

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

4.0.0 ≤ v < 4.3.134.4.0 ≤ v < 4.4.84.5.0 ≤ v < 4.5.3
Affected range stops below 4.3.13, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.4.8, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.5.3, so it looks safe — our inference, not a vendor statement

References (9)

Vendor Advisoryx_refsource_REDHATThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2017-0494.html
Vendor Advisoryx_refsource_REDHATThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2017-0495.html
Vendor Advisoryx_refsource_REDHATThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2017-0662.html
Vendor Advisoryx_refsource_REDHATThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2017-0744.html
VDB Entryx_refsource_BIDThird Party Advisory
http://www.securityfocus.com/bid/94994
VDB Entryx_refsource_SECTRACKThird Party Advisory
http://www.securitytracker.com/id/1037495
Vendor Advisoryx_refsource_REDHATThird Party Advisory
https://access.redhat.com/errata/RHSA-2017:1265

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-264

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Free plan, no card