CVE-2017-13723: Buffer Overflow
First published: Mon Oct 09 2017(Updated: )
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.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/xorg-server | 2:1.20.4-1+deb10u4 2:1.20.4-1+deb10u9 2:1.20.11-1+deb11u6 2:21.1.7-3 2:21.1.8-1 | |
| X.Org Xserver | <=1.19.3 | |
| Debian | =8.0 | |
| Debian | =9.0 |
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Reference Links
- https://cgit.freedesktop.org/xorg/xserver/commit/?id=94f11ca5cf011ef123bd222cabeaef6f424d76ac
- https://security-tracker.debian.org/tracker/CVE-2017-13723
- http://www.debian.org/security/2017/dsa-4000
- http://www.openwall.com/lists/oss-security/2017/10/04/10
- http://www.securityfocus.com/bid/101253
- https://lists.debian.org/debian-lts-announce/2017/11/msg00032.html
- https://lists.x.org/archives/xorg-announce/2017-October/002808.html
- https://security.gentoo.org/glsa/201710-30
Frequently Asked Questions
What is the severity of CVE-2017-13723?
CVE-2017-13723 has a high severity rating due to its potential to cause crashes and disruption in X server operations.
How do I fix CVE-2017-13723?
To fix CVE-2017-13723, update the xorg-server package to version 1.19.4 or later.
Who is affected by CVE-2017-13723?
CVE-2017-13723 affects systems running versions of xorg-server prior to 1.19.4, specifically on Debian GNU/Linux.
What type of attack does CVE-2017-13723 enable?
CVE-2017-13723 enables local authenticated attackers to exploit a buffer overflow vulnerability in the X server.
Is CVE-2017-13723 a remote vulnerability?
No, CVE-2017-13723 is not a remote vulnerability; it requires local authentication to the X server.
- collector/security-tracker-debian
- agent/type
- agent/references
- collector/mitre-cve
- source/MITRE
- agent/severity
- agent/last-modified-date
- agent/author
- agent/weakness
- agent/description
- agent/first-publish-date
- agent/event
- agent/source
- agent/softwarecombine
- agent/tags
- collector/nvd-index
- agent/software-canonical-lookup-request
- package-manager/debian
- vendor/x.org
- canonical/x.org xserver
- version/x.org xserver/1.19.3
- vendor/debian
- canonical/debian
- version/debian/8.0
- version/debian/9.0