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Mandriva Linux Security Advisory : x11-server (MDVSA-2015:119)

medium Nessus Plugin ID 82372

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Synopsis

The remote Mandriva Linux host is missing one or more security updates.

Description

Updated x11-server packages fix security vulnerabilities :

Ilja van Sprundel of IOActive discovered several security issues in the X.org X server, which may lead to privilege escalation or denial of service (CVE-2014-8091, CVE-2014-8092, CVE-2014-8093, CVE-2014-8094, CVE-2014-8095, CVE-2014-8096, CVE-2014-8097, CVE-2014-8098, CVE-2014-8099, CVE-2014-8100, CVE-2014-8101, CVE-2014-8102).

Olivier Fourdan from Red Hat has discovered a protocol handling issue in the way the X server code base handles the XkbSetGeometry request, where the server trusts the client to send valid string lengths. A malicious client with string lengths exceeding the request length can cause the server to copy adjacent memory data into the XKB structs.
This data is then available to the client via the XkbGetGeometry request. This can lead to information disclosure issues, as well as possibly a denial of service if a similar request can cause the server to crash (CVE-2015-0255).

Solution

Update the affected packages.

See Also

http://advisories.mageia.org/MGASA-2014-0532.html

http://advisories.mageia.org/MGASA-2015-0073.html

Plugin Details

Severity: Medium

ID: 82372

File Name: mandriva_MDVSA-2015-119.nasl

Version: 1.4

Type: local

Published: 3/30/2015

Updated: 1/14/2021

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Medium

Base Score: 6.5

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

Vulnerability Information

CPE: p-cpe:/a:mandriva:linux:x11-server-xorg, p-cpe:/a:mandriva:linux:x11-server-xdmx, p-cpe:/a:mandriva:linux:x11-server-devel, p-cpe:/a:mandriva:linux:x11-server-xfbdev, p-cpe:/a:mandriva:linux:x11-server, p-cpe:/a:mandriva:linux:x11-server-xephyr, cpe:/o:mandriva:business_server:2, p-cpe:/a:mandriva:linux:x11-server-common, p-cpe:/a:mandriva:linux:x11-server-xvfb, p-cpe:/a:mandriva:linux:x11-server-xnest, p-cpe:/a:mandriva:linux:x11-server-xfake, p-cpe:/a:mandriva:linux:x11-server-source

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/Mandrake/release, Host/Mandrake/rpm-list

Patch Publication Date: 3/29/2015

Reference Information

CVE: CVE-2014-8091, CVE-2014-8092, CVE-2014-8093, CVE-2014-8094, CVE-2014-8095, CVE-2014-8096, CVE-2014-8097, CVE-2014-8098, CVE-2014-8099, CVE-2014-8100, CVE-2014-8101, CVE-2014-8102, CVE-2015-0255

MDVSA: 2015:119