Vulnerability Details : CVE-2017-12176
xorg-x11-server before 1.19.5 was missing extra length validation in ProcEstablishConnection function allowing malicious X client to cause X server to crash or possibly execute arbitrary code.
Vulnerability category: Input validationExecute code
Products affected by CVE-2017-12176
- cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
- cpe:2.3:a:x.org:xorg-server:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2017-12176
1.00%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 75 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2017-12176
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
7.5
|
HIGH | AV:N/AC:L/Au:N/C:P/I:P/A:P |
10.0
|
6.4
|
NIST | |
|
9.8
|
CRITICAL | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
NIST |
CWE ids for CVE-2017-12176
-
The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.Assigned by: nvd@nist.gov (Primary)
-
[PLANNED FOR DEPRECATION. SEE MAINTENANCE NOTES AND CONSIDER CWE-252, CWE-248, OR CWE-1069.] Ignoring exceptions and other error conditions may allow an attacker to induce unexpected behavior unnoticed.Assigned by: secalert@redhat.com (Secondary)
References for CVE-2017-12176
-
https://lists.debian.org/debian-lts-announce/2017/11/msg00032.html
[SECURITY] [DLA 1186-1] xorg-server security updateMailing List;Third Party Advisory
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https://bugzilla.redhat.com/show_bug.cgi?id=1509214
1509214 – (CVE-2017-12176) CVE-2017-12176 xorg-x11-server: Unvalidated extra length in ProcEstablishConnectionIssue Tracking;Patch;Third Party Advisory;VDB Entry
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https://www.debian.org/security/2017/dsa-4000
Debian -- Security Information -- DSA-4000-1 xorg-serverThird Party Advisory
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https://security.gentoo.org/glsa/201711-05
X.Org Server: Multiple vulnerabilities (GLSA 201711-05) — Gentoo securityThird Party Advisory;VDB Entry
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https://cgit.freedesktop.org/xorg/xserver/commit/?id=b747da5e25be944337a9cd1415506fc06b70aa81
xorg/xserver - X server (mirrored from https://gitlab.freedesktop.org/xorg/xserver)Patch;Third Party Advisory
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