Critical severity · published Jan 24, 2018
CVE-2017-12187
xorg-x11-server before 1.19.5 was missing length validation in RENDER extension allowing malicious X client to cause X server to crash or possibly execute arbitrary code
9.8
CVSS
3.3%
EPSS
No
On KEV
Description
xorg-x11-server before 1.19.5 was missing length validation in RENDER extension allowing malicious X client to cause X server to crash or possibly execute arbitrary code.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)3.3% · higher than 89% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DL
Debian Linux · Debian
8.0; 9.0 · source: NVD
XS
X Server · X.org
before 1.19.5 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2017-12187
CVE.org
https://www.cve.org/CVERecord?id=CVE-2017-12187
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=1509217
Patch
https://cgit.freedesktop.org/xorg/xserver/commit/?id=cad5a1050b7184d828aef9c1dd151c3ab649d37e
Mailing List
https://lists.debian.org/debian-lts-announce/2017/11/msg00032.html
Third Party Advisory
https://www.debian.org/security/2017/dsa-4000
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