X.org X Server Vulnerability in Version Prior to 1.19.5
CVE-2017-12178

9.8CRITICAL

Key Information:

Vendor

The X.org Foundation

Status
Xorg-x11-server
Vendor
CVE Published:
24 January 2018

What is CVE-2017-12178?

The X.org X Server prior to version 1.19.5 contains an improper extra length check in the ProcXIChangeHierarchy function. This vulnerability can be exploited by a malicious X client to cause crashes of the X server or potentially execute arbitrary code, posing a significant threat to the integrity and security of systems running vulnerable versions.

Affected Version(s)

xorg-x11-server before 1.19.5

References

https://www.debian.org/security/2017/dsa-4000
vendor-advisoryx_refsource_DEBIAN
https://lists.debian.org/debian-lts-announce/2017/11/msg0...
mailing-listx_refsource_MLIST
https://bugzilla.redhat.com/show_bug.cgi?id=1509219
x_refsource_CONFIRM

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.