Vulnerability Monitor

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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 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.

Published

2017-10-10T01:30:21.407

Last Modified

2025-04-20T01:37:25.860

Status

Deferred

Source

[email protected]

Severity

CVSSv3.0: 7.8 (HIGH)

CVSSv2 Vector

AV:L/AC:L/Au:N/C:P/I:P/A:P

Access Vector: LOCAL
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: PARTIAL
Integrity Impact: PARTIAL
Availability Impact: PARTIAL

Exploitability Score

3.9

Impact Score

6.4

Weaknesses

Type: Primary
CWE-119

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	x.org	xorg-server	≤ 1.19.3	Yes
Operating System	debian	debian_linux	8.0	Yes
Operating System	debian	debian_linux	9.0	Yes

References

http://www.debian.org/security/2017/dsa-4000 Third Party Advisory ([email protected])
http://www.openwall.com/lists/oss-security/2017/10/04/10 Mailing List, Third Party Advisory ([email protected])
http://www.securityfocus.com/bid/101253 Third Party Advisory, VDB Entry ([email protected])
https://cgit.freedesktop.org/xorg/xserver/commit/?id=94f11ca5cf011ef123bd222cabeaef6f424d76ac Third Party Advisory ([email protected])
https://lists.debian.org/debian-lts-announce/2017/11/msg00032.html ([email protected])
https://lists.x.org/archives/xorg-announce/2017-October/002808.html Vendor Advisory ([email protected])
https://security.gentoo.org/glsa/201710-30 Third Party Advisory ([email protected])
http://www.debian.org/security/2017/dsa-4000 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.openwall.com/lists/oss-security/2017/10/04/10 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/101253 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
https://cgit.freedesktop.org/xorg/xserver/commit/?id=94f11ca5cf011ef123bd222cabeaef6f424d76ac Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://lists.debian.org/debian-lts-announce/2017/11/msg00032.html (af854a3a-2127-422b-91ae-364da2661108)
https://lists.x.org/archives/xorg-announce/2017-October/002808.html Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://security.gentoo.org/glsa/201710-30 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)