Slackware Linux update for xorg-server

Published: 2017-10-06 | Updated: 2017-10-06

Risk	Low
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2017-13721 CVE-2017-13723
CWE-ID	CWE-269 CWE-119
Exploitation vector	Local
Public exploit	N/A
Vulnerable software Subscribe	Slackware Linux Operating systems & Components / Operating system
Vendor	Slackware

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Improper Privilege Management

EUVDB-ID: #VU33522

Risk: Low

CVSSv3.1: 4.1 [CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-13721

CWE-ID: CWE-269 - Improper Privilege Management

Exploit availability: No

Description

The vulnerability allows a local authenticated user to perform a denial of service (DoS) attack.

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.

Mitigation

Update the affected package xorg-server.

Vulnerable software versions

Slackware Linux: 14.0 - 14.2

CPE2.3

External links

http://www.slackware.com/security/viewer.php?l=slackware-security&y=2017&m=slackware-security.872751

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Buffer overflow

EUVDB-ID: #VU33523