Home/CVE/In X.Org Server (aka xserver and xorg-server) before 1.19.4, a local attacker authenticated to the X server could overfl
CVE

CVE-2017-13723

In X.Org Server (aka xserver and xorg-server) before 1.19.4, a local attacker authenticated to the X server could overfl

In X.Org Server (aka xserver and xorg-server) before 1.19.4, a local attacker authenticated to the X server could overflow a global buffer, causing crashes of the X server or potentially other problems by injecting large or malformed XKB related atoms and accessing them via xkbcomp.

HIGH · CVSS 7.8 EPSS 0.00127
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer
▤

Affected Products & Versions

2
x.org x server<= 1.19.3
debian linuxall versions
▣

Scoring & Timeline

7.8
HIGH · CVSS v3.0 · cve@mitre.org
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 NVD10 Oct 2017 · 01:30 AM
CVSS VectorCVSS:3.0/AV:L/AC:L/PR:L/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-3453-1
🔗

References & Sources

7
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://www.debian.org/security/2017/dsa-4000Third Party Advisory
http://www.openwall.com/lists/oss-security/2017/10/04/10Mailing ListThird Party Advisory
http://www.securityfocus.com/bid/101253Third Party AdvisoryVDB Entry
https://cgit.freedesktop.org/xorg/xserver/commit/?id=94f11ca5cf011ef123bd222cabeaef6f424d76acThird Party Advisory
https://lists.debian.org/debian-lts-announce/2017/11/msg00032.html
https://lists.x.org/archives/xorg-announce/2017-October/002808.htmlVendor Advisory
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