SB2018012414 - Input validation error in Debian Linux
Published: January 24, 2018 Updated: August 4, 2020
Security Bulletin ID
SB2018012414
Severity
High
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Input validation error (CVE-ID: CVE-2017-12178)
The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.
xorg-x11-server before 1.19.5 had wrong extra length check in ProcXIChangeHierarchy function allowing malicious X client to cause X server to crash or possibly execute arbitrary code.
Remediation
Install update from vendor's website.
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1509219
- https://cgit.freedesktop.org/xorg/xserver/commit/?id=859b08d523307eebde7724fd1a0789c44813e821
- https://lists.debian.org/debian-lts-announce/2017/11/msg00032.html
- https://security.gentoo.org/glsa/201711-05
- https://www.debian.org/security/2017/dsa-4000