Vulnerability Monitor

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CVE-2017-13721

In X.Org Server (aka xserver and xorg-server) before 1.19.4, an attacker authenticated to an X server with the X shared memory extension enabled can cause aborts of the X server or replace shared memory segments of other X clients in the same session.

Published

2017-10-10T01:30:21.377

Last Modified

2025-04-20T01:37:25.860

Status

Deferred

Source

[email protected]

Severity

CVSSv3.0: 4.7 (MEDIUM)

CVSSv2 Vector

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

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

Exploitability Score

3.4

Impact Score

2.9

Weaknesses

Type: Primary
CWE-269

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/101238 Third Party Advisory, VDB Entry ([email protected])
https://cgit.freedesktop.org/xorg/xserver/commit/?id=b95f25af141d33a65f6f821ea9c003f66a01e1f1 Third Party Advisory ([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/101238 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
https://cgit.freedesktop.org/xorg/xserver/commit/?id=b95f25af141d33a65f6f821ea9c003f66a01e1f1 Third Party Advisory (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)