X.org X11 composite extension buffer overflow
| xorg-composite-bo (36535) |  High Risk |
Description:
X.org X11 is vulnerable to a buffer overflow, caused by improper bounds checking by the composite extension. By copying data between specially-crafted pixmaps, a local attacker could overflow a buffer and execute arbitrary code on the system.
*CVSS:
| Base Score: | 4.6 |
| Access Vector: | Local |
| Access Complexity: | Low |
| Authentication: | None |
| Confidentiality Impact: | Partial |
| Integrity Impact: | Partial |
| Availability Impact: | Partial |
| Temporal Score: | 3.4 |
| Exploitability: | Unproven |
| Remediation Level: | Official-Fix |
| Report Confidence: | Confirmed |
Consequences:
Gain Access
Remedy:
Upgrade to the latest version of X.org X11 (1.4 or later), available from the X.org X11 Web site. See References.
Debian/GNU Linux:
Refer to DSA-1372-1 for patch, upgrade, or suggested workaround information. See References.
For Mandriva Linux (x11-server):
Refer to MDKSA-2007:178 for patch, upgrade, or suggested workaround information. See References.
For Ubuntu Linux (xorg):
Refer to USN-514-1 for patch, upgrade, or suggested workaround information. See References.
For other distributions:
Contact your vendor for upgrade or patch information.
References:
- X.Org Foundation Web site: X.Org Wiki - Home.
- ASA-2007-394: Xorg-x11 security update (RHSA-2007-0898)
- BID-25606: X.Org X Server Composite Extension Local Buffer Overflow Vulnerability
- CVE-2007-4730: Buffer overflow in the compNewPixmap function in compalloc.c in the Composite extension for the X.org X11 server before 1.4 allows local users to execute arbitrary code by copying data from a large pixel depth pixmap into a smaller pixel depth pixmap.
- DSA-1372: xorg-server -- buffer overflow
- GLSA-200710-16: X.Org X server: Composite local privilege escalation
- MDKSA-2007:178: Updated x11-server packages fix vulnerability
- MDVSA-2008:022: Updated xorg-x11 packages fix multiple vulnerabilities
- RHSA-2007-0898: Moderate: xorg-x11 security update
- SA26743: X.org X11 Composite Pixmap Privilege Escalation Vulnerability
- SA27147: Avaya Products X.org X11 Composite Pixmap Privilege Escalation
- SA30161: Gentoo ltsp Multiple Vulnerabilities
- SECTRACK ID: 1018665: X Server Bug in compNewPixmap() Lets Local Users Gain Elevated Privileges
- SUSE-SA:2007:054: Xorg security problems
- USN-514-1: X.org vulnerability
- VUPEN/ADV-2007-3098: X.Org X Server Composite Extension Local Privilege Escalation Vulnerability
Platforms Affected:
- Avaya Intuity Audix LX
- Avaya Message Networking
- Avaya Message Storage Server 3.0
- Canonical Ubuntu 6.06 LTS
- Debian Debian Linux 4.0
- Gentoo Linux
- MandrakeSoft Mandrake Linux 2007
- MandrakeSoft Mandrake Linux 2007 X86_64
- MandrakeSoft Mandrake Linux 2007.1 X86_64
- MandrakeSoft Mandrake Linux 2007.1
- MandrakeSoft Mandrake Linux 2008.0 X86_64
- MandrakeSoft Mandrake Linux Corporate Server 4.0 X86_64
- MandrakeSoft Mandrake Linux Corporate Server 4.0
- Novell Linux POS 9
- Novell OpenSUSE 10.2
- Novell OpenSUSE 10.3
- Novell SLE SDK 10 SP1
- Novell SLE SDK 10
- Novell SUSE Linux Enterprise Desktop 10 SP1
- Novell SUSE Linux Enterprise Server 10 SP1
- Novell SUSE Linux Enterprise Server 10
- RedHat Enterprise Linux 4 Desktop
- RedHat Enterprise Linux 4 WS
- RedHat Enterprise Linux 4 ES
- RedHat Enterprise Linux 4 AS
- SUSE SuSE Linux 10.0
- SUSE SuSE Linux 10.1
- SUSE SuSE Linux 9.0
- X.Org X11 7.x
Reported:
Sep 09, 2007
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The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.