Home/CVE/xorg-x11-server before 1.19.5 had wrong extra length check in ProcXIChangeHierarchy function allowing malicious X client
CVE

CVE-2017-12178

xorg-x11-server before 1.19.5 had wrong extra length check in ProcXIChangeHierarchy function allowing malicious X client

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.

CRITICAL · CVSS 9.8 EPSS 0.00502
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-20Improper Input Validation
CWE-391Unchecked Error Condition
▤

Affected Products & Versions

2
debian linuxall versions
x.org x server< 1.19.5
▣

Scoring & Timeline

9.8
CRITICAL · CVSS v3.0 · secalert@redhat.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD24 Jan 2018 · 03:29 PM
CVSS VectorCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
⚑

Vendor Advisories

3
suse-csafSUSE-SU-2017:3047-1
suse-csafSUSE-SU-2017:3025-1
usnUSN-3456-1
🔗

References & Sources

5
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://bugzilla.redhat.com/show_bug.cgi?id=1509219Issue TrackingPatchThird Party AdvisoryVDB Entry
https://cgit.freedesktop.org/xorg/xserver/commit/?id=859b08d523307eebde7724fd1a0789c44813e821PatchThird Party Advisory
https://lists.debian.org/debian-lts-announce/2017/11/msg00032.htmlMailing ListThird Party Advisory
https://security.gentoo.org/glsa/201711-05Third Party AdvisoryVDB Entry
https://www.debian.org/security/2017/dsa-4000Third Party Advisory
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