Xorg X Server Vulnerability in Connection Handling by The X.Org Foundation
CVE-2017-12176

9.8CRITICAL

Key Information:

Vendor

The X.org Foundation

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

What is CVE-2017-12176?

The xorg-x11-server prior to version 1.19.5 lacks critical extra length validation in the ProcEstablishConnection function. This oversight can be exploited by a malicious X client, leading to potential crashes of the X server and, in some cases, the execution of arbitrary code. Users of affected versions should promptly apply the available security updates to mitigate potential risks.

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Affected Version(s)

xorg-x11-server before 1.19.5

References

https://www.debian.org/security/2017/dsa-4000
vendor-advisoryx_refsource_DEBIAN
https://bugzilla.redhat.com/show_bug.cgi?id=1509214
x_refsource_CONFIRM
https://lists.debian.org/debian-lts-announce/2017/11/msg0...
mailing-listx_refsource_MLIST

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

JSON
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