CVE-2017-13721

medium

Description

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.

References

Advisories
More

https://security.gentoo.org/glsa/201710-30

https://cgit.freedesktop.org/xorg/xserver/commit/?id=b95f25af141d33a65f6f821ea9c003f66a01e1f1

http://www.securityfocus.com/bid/101238

http://www.openwall.com/lists/oss-security/2017/10/04/10

http://www.debian.org/security/2017/dsa-4000

https://lists.x.org/archives/xorg-announce/2017-October/002808.html

Details

Source: Mitre, NVD

Published: 2017-10-10

Updated: 2025-04-20

Risk Information

CVSS v2

Base Score: 1.9

Vector: CVSS2#AV:L/AC:M/Au:N/C:N/I:N/A:P

Severity: Low

CVSS v3

Base Score: 4.7

Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

Severity: Medium

EPSS

EPSS: 0.0008