CVE-2014-8091
published 2014-12-10CVE-2014-8091: X.Org X Window System (aka X11 and X) X11R5 and X.Org Server (aka xserver and xorg-server) before 1.16.3, when using SUN-DES-1 (Secure RPC) authentication…
PriorityP425medium4.3CVSS 2.0
AVNACMAuNCNINAP
EPSS
4.19%
89.9th percentile
X.Org X Window System (aka X11 and X) X11R5 and X.Org Server (aka xserver and xorg-server) before 1.16.3, when using SUN-DES-1 (Secure RPC) authentication credentials, does not check the return value of a malloc call, which allows remote attackers to cause a denial of service (NULL pointer dereference and server crash) via a crafted connection request.
Affected
7 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | xorg-server | < xorg-server 2:1.16.2.901-1 (bookworm) | xorg-server 2:1.16.2.901-1 (bookworm) |
| x.org | x11 | — | — |
| x.org | x_server | <= 1.16.2 | — |
| x.org | xorg-server | >= 0 < 2:1.16.2.901-1 | 2:1.16.2.901-1 |
| x.org | xorg-server | >= 0 < 2:1.16.2.901-1 | 2:1.16.2.901-1 |
| x.org | xorg-server | >= 0 < 2:1.16.2.901-1 | 2:1.16.2.901-1 |
| x.org | xorg-server | >= 0 < 2:1.16.2.901-1 | 2:1.16.2.901-1 |
CVSS provenance
nvdv2.04.3MEDIUMAV:N/AC:M/Au:N/C:N/I:N/A:P
osv4.3MEDIUM
vendor_debian4.3MEDIUM
vendor_redhat4.3MEDIUM
Stop checking back — get the weekly exploitation signal.
Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.
Ubuntu
NVIDIA graphics drivers vulnerabilities
vendor_ubuntu·2014-12-10
CVE-2014-8091 NVIDIA graphics drivers vulnerabilities
Title: NVIDIA graphics drivers vulnerabilities
Summary: Several security issues were fixed in the NVIDIA graphics drivers.
It was discovered that the NVIDIA graphics drivers incorrectly handled GLX
indirect rendering support. An attacker able to connect to an X server,
either locally or remotely, could use these issues to cause the X server to
crash or execute arbitrary code resulting in possible privilege escalation.
Instructions: After a standard system update you need to reboot your computer to make
all the necessary changes.
Ubuntu
X.Org X server vulnerabilities
vendor_ubuntu·2014-12-09
CVE-2014-8091 X.Org X server vulnerabilities
Title: X.Org X server vulnerabilities
Summary: Several security issues were fixed in the X.Org X server.
Ilja van Sprundel discovered a multitude of security issues in the X.Org X
server. An attacker able to connect to an X server, either locally or
remotely, could use these issues to cause the X server to crash or execute
arbitrary code resulting in possible privilege escalation.
Instructions: After a standard system update you need to reboot your computer to make
all the necessary changes.
Red Hat
xorg-x11-server: denial of service due to unchecked malloc in client authentication
vendor_redhat·2014-12-09·CVSS 4.3
CVE-2014-8091 [MEDIUM] CWE-252 xorg-x11-server: denial of service due to unchecked malloc in client authentication
xorg-x11-server: denial of service due to unchecked malloc in client authentication
X.Org X Window System (aka X11 and X) X11R5 and X.Org Server (aka xserver and xorg-server) before 1.16.3, when using SUN-DES-1 (Secure RPC) authentication credentials, does not check the return value of a malloc call, which allows remote attackers to cause a denial of service (NULL pointer dereference and server crash) via a crafted connection request.
It was found that the X.Org server did not properly handle SUN-DES-1 (Secure RPC) authentication credentials. A malicious, unauthenticated client could use this flaw to crash the X.Org server by submitting a specially crafted authentication request.
Debian
CVE-2014-8091: xorg-server - X.Org X Window System (aka X11 and X) X11R5 and X.Org Server (aka xserver and xo...
vendor_debian·2014·CVSS 4.3
CVE-2014-8091 [MEDIUM] CVE-2014-8091: xorg-server - X.Org X Window System (aka X11 and X) X11R5 and X.Org Server (aka xserver and xo...
X.Org X Window System (aka X11 and X) X11R5 and X.Org Server (aka xserver and xorg-server) before 1.16.3, when using SUN-DES-1 (Secure RPC) authentication credentials, does not check the return value of a malloc call, which allows remote attackers to cause a denial of service (NULL pointer dereference and server crash) via a crafted connection request.
Scope: local
bookworm: resolved (fixed in 2:1.16.2.901-1)
bullseye: resolved (fixed in 2:1.16.2.901-1)
forky: resolved (fixed in 2:1.16.2.901-1)
sid: resolved (fixed in 2:1.16.2.901-1)
trixie: resolved (fixed in 2:1.16.2.901-1)
GHSA
GHSA-3443-38jq-4qwq: X
ghsa_unreviewed·2022-05-17
CVE-2014-8091 [MEDIUM] GHSA-3443-38jq-4qwq: X
X.Org X Window System (aka X11 and X) X11R5 and X.Org Server (aka xserver and xorg-server) before 1.16.3, when using SUN-DES-1 (Secure RPC) authentication credentials, does not check the return value of a malloc call, which allows remote attackers to cause a denial of service (NULL pointer dereference and server crash) via a crafted connection request.
OSV
CVE-2014-8091: X
osv·2014-12-10·CVSS 4.3
CVE-2014-8091 [MEDIUM] CVE-2014-8091: X
X.Org X Window System (aka X11 and X) X11R5 and X.Org Server (aka xserver and xorg-server) before 1.16.3, when using SUN-DES-1 (Secure RPC) authentication credentials, does not check the return value of a malloc call, which allows remote attackers to cause a denial of service (NULL pointer dereference and server crash) via a crafted connection request.
No detection rules found.
No public exploits indexed.
Bugzilla
tigervnc requires rebuild after Dec-2014 xorg-x11-server CVEs
bugzilla·2015-01-11·CVSS 4.3
CVE-2014-8091 [MEDIUM] tigervnc requires rebuild after Dec-2014 xorg-x11-server CVEs
tigervnc requires rebuild after Dec-2014 xorg-x11-server CVEs
The Xvnc server (tigervnc-server) and VNC extension for the Xorg server (tigervnc-server-module) are built with xorg-x11-server-source, but have not been rebuilt since the numerous security issues announced in December 2014 (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-2014-8103).
Therefore, 1) tigervnc needs to be rebuilt for all supported branches in both Fedora and RHEL, and 2) something needs to be put in place that CVEs in xorg-x11-server also trigger notifications for tigervnc.
Discussion:
(In reply to Yaakov Selkowitz from comment #0)
> 2) something needs to be put in place that CV
Bugzilla
CVE-2014-8091 xorg-x11-server: denial of service due to unchecked malloc in client authentication
bugzilla·2014-11-27·CVSS 4.3
CVE-2014-8091 [MEDIUM] CVE-2014-8091 xorg-x11-server: denial of service due to unchecked malloc in client authentication
CVE-2014-8091 xorg-x11-server: denial of service due to unchecked malloc in client authentication
In servers built with support for SUN-DES-1 (Secure RPC)
authentication credentials, an unauthenticated client may be able to
crash the X server by sending a connection request specifying values
that cause malloc to fail, causing the authentication routines to
attempt to write data to the returned NULL pointer. Since the request
is limited to an unsigned 16-bit integer for the allocation size, it is
unlikely to fail unless the server is severely memory constrained.
Introduced in the initial revision of Secure RPC support in X11R5 (1991)
Discussion:
Created attachment 962110
0001-unchecked_malloc_may_allow_unauthed_client_to_crash_Xserver_CVE-2014-8091.patch
---
This issue arises because
http://advisories.mageia.org/MGASA-2014-0532.htmlhttp://secunia.com/advisories/61947http://secunia.com/advisories/62292http://www.debian.org/security/2014/dsa-3095http://www.mandriva.com/security/advisories?name=MDVSA-2015:119http://www.oracle.com/technetwork/topics/security/bulletinjan2015-2370101.htmlhttp://www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.htmlhttp://www.oracle.com/technetwork/topics/security/cpujul2015-2367936.htmlhttp://www.securityfocus.com/bid/71597http://www.x.org/wiki/Development/Security/Advisory-2014-12-09/https://security.gentoo.org/glsa/201504-06http://advisories.mageia.org/MGASA-2014-0532.htmlhttp://secunia.com/advisories/61947http://secunia.com/advisories/62292http://www.debian.org/security/2014/dsa-3095http://www.mandriva.com/security/advisories?name=MDVSA-2015:119http://www.oracle.com/technetwork/topics/security/bulletinjan2015-2370101.htmlhttp://www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.htmlhttp://www.oracle.com/technetwork/topics/security/cpujul2015-2367936.htmlhttp://www.securityfocus.com/bid/71597http://www.x.org/wiki/Development/Security/Advisory-2014-12-09/https://security.gentoo.org/glsa/201504-06
2014-12-10
Published