SB2015102602 - NULL pointer dereference in Freedesktop polkit

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Main Vulnerability Database SB2015102602

SB2015102602 - NULL pointer dereference in Freedesktop polkit

Published: October 26, 2015 Updated: July 28, 2020

Security Bulletin ID SB2015102602
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Partial DoS

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) NULL pointer dereference (CVE-ID: CVE-2015-3218)

CWE-ID: CWE-476 - NULL Pointer Dereference

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dereference error in polkitbackend/polkitbackendinteractiveauthority.c in PolicyKit (aka polkit) before 0.113 allows local users to cause a denial of service (NULL pointer dereference and polkitd daemon crash) by calling RegisterAuthenticationAgent with an invalid object path. <a href="http://cwe.mitre.org/data/definitions/476. A remote attacker can perform a denial of service (DoS) attack.


Remediation

Install update from vendor's website.

References