CVE-2017-12183

moderate-risk
Published 2018-01-24

xorg-x11-server before 1.19.5 was missing length validation in XFIXES extension allowing malicious X client to cause X server to crash or possibly execute arbitrary code.

Do I need to act?

-
0.95% chance of exploitation
EPSS score — low exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
9
CVSS 9.8/10 Critical
NETWORK / LOW complexity

Affected Products (3)

Affected Vendors

Debian X.Org

References (10)

Issue Tracking https://bugzilla.redhat.com/show_bug.cgi?id=1509224
Patch https://cgit.freedesktop.org/xorg/xserver/commit/?id=55caa8b08c84af2b50fbc936cf3...
Mailing List https://lists.debian.org/debian-lts-announce/2017/11/msg00032.html
Third Party Advisory https://security.gentoo.org/glsa/201711-05
Third Party Advisory https://www.debian.org/security/2017/dsa-4000
Issue Tracking https://bugzilla.redhat.com/show_bug.cgi?id=1509224
Patch https://cgit.freedesktop.org/xorg/xserver/commit/?id=55caa8b08c84af2b50fbc936cf3...
Mailing List https://lists.debian.org/debian-lts-announce/2017/11/msg00032.html
Third Party Advisory https://security.gentoo.org/glsa/201711-05
Third Party Advisory https://www.debian.org/security/2017/dsa-4000
44
/ 100
moderate-risk
Severity 32/34 · Critical
Exploitability 3/34 · Minimal
Exposure 9/34 · Low