X.Org pixmap buffer overflow
| xorg-pixmap-bo (22244) |  High Risk |
Description:
X.Org is vulnerable to a heap-based buffer overflow in the pixmap memory allocation. By sending a large pixmap, a local attacker could overflow a buffer and execute arbitrary code on the system with elevated privileges.
Note: It is reported that XFree86 versions. 4.1.x through 4.5.x, X Windows System (X11) version 6.x as well as all versions of Avaya Modular Messaging Message Storage Server (MSS), Avaya Message Networking (all versions) and Avaya Intuity LX (all versions) are vulnerable to this as well.
Platforms Affected:
- Avaya, Intuity Audix LX
- Avaya, Message Networking
- Avaya, Modular Messaging
- Canonical, Ubuntu 4.10
- Canonical, Ubuntu 5.04
- Debian, Debian Linux 3.0
- Debian, Debian Linux 3.1
- Gentoo, Linux
- MandrakeSoft, Mandrake Linux 10.0
- MandrakeSoft, Mandrake Linux 10.0 AMD64
- MandrakeSoft, Mandrake Linux 10.1
- MandrakeSoft, Mandrake Linux 10.1 X86_64
- MandrakeSoft, Mandrake Linux LE2005 X86_64
- MandrakeSoft, Mandrake Linux LE2005
- MandrakeSoft, Mandrake Linux Corporate Server 2.1 X86_64
- MandrakeSoft, Mandrake Linux Corporate Server 2.1
- MandrakeSoft, Mandrake Linux Corporate Server 3.0
- MandrakeSoft, Mandrake Linux Corporate Server 3.0 X86_64
- Novell, Linux Desktop 9
- RedHat, Enterprise Linux 2.1 AW
- RedHat, Enterprise Linux 2.1 WS
- RedHat, Enterprise Linux 2.1 AS
- RedHat, Enterprise Linux 2.1 ES
- RedHat, Enterprise Linux 3 Desktop
- RedHat, Enterprise Linux 3 WS
- RedHat, Enterprise Linux 3 ES
- RedHat, Enterprise Linux 3 AS
- RedHat, Enterprise Linux 4 Desktop
- RedHat, Enterprise Linux 4 WS
- RedHat, Enterprise Linux 4 AS
- RedHat, Enterprise Linux 4 ES
- RedHat, Linux Advanced Workstation 2.1 Itanium
- SuSE, Linux Enterprise Server 8
- SuSE, Linux Enterprise Server 9
- SuSE, SuSE Linux 9.0
- SuSE, SuSE Linux 9.1
- SuSE, SuSE Linux 9.2
- SuSE, SuSE Linux 9.3
- SuSE, SuSE Linux Desktop 1.0
- X.Org, X.Org Server 6.8.2-r3 and prior
- X.Org, X11 6.x
- XFree86, XFree86 4.1.x to 4.5.x
Remedy:
For Gentoo Linux:
Upgrade to the latest version of Xorg-x11 (6.8.2-r3 or later), as listed in GLSA 200509-07. See References.
For Red Hat Linux 2.1 (AS, ES, WS and Advanced Workstation):
Upgrade to the latest version of XFree86 (4.1.0-73.EL or later). Refer to RHSA-2005:329-12 for more information. See References.
For Red Hat Linux (Xfree86):
Refer to RHSA-2005:501-20 or RHSA-2005:329-12 for patch, upgrade, or suggested workaround information. See References.
For Red Hat Linux 4.0 (AS, ES, WS and Desktop):
Upgrade to the latest version of Xorg-x11 (6.8.2-1.EL.13.16 or later). Refer to RHSA-2005:396-9 for more information. See References.
For Debian GNU/Linux:
Upgrade to the latest version of XFfree86 as listed below. Refer to Debian/GNU Security Advisory DSA-816-1 for more information. See References.
Debian/GNU 3.0 (woody7): 4.1.0-16woody7 or later
Debian/GNU 3.1 (sarge): 4.3.0.dfsg.1-14sarge1 or later
For Ubuntu Linux:
Refer to USN-182-1 for patch, upgrade, or suggested workaround information. See References.
For SUSE Linux:
Refer to SUSE Security Announcement SUSE-SA:2005:056 for patch, upgrade, or suggested workaround information. See References.
For other distributions:
Contact your vendor for upgrade or patch information.
Consequences:
Gain Access
References:
- BugTraq Mailing List, Mon Sep 12 2005 - 10:40:59 CDT , X.Org: Heap overflow in pixmap allocation at http://archives.neohapsis.com/archives/bugtraq/2005-09/0124.html.
- Bugzilla Bug 166859, CAN-2005-2495 multiple integer overflows at https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=166859.
- CIAC INFORMATION BULLETIN P-304, XFree86 Security Update at http://www.ciac.org/ciac/bulletins/p-304.shtml.
- Sun Alert ID: 101926, Security Vulnerability in the Xsun(1) and Xorg Servers at http://sunsolve.sun.com/search/document.do?assetkey=1-26-101926-1&searchclause=security.
- X.Org Web site, The X.Org Foundation at http://wiki.x.org/wiki/.
- ASA-2006-093: UnixWare X Server Arbitrary Code Execution (SCOSA-2006.22)
- BID-14807: XFree86 Pixmap Allocation Local Privilege Escalation Vulnerability
- CVE-2005-2495: Multiple integer overflows in XFree86 before 4.3.0 allow user-assisted attackers to execute arbitrary code via a crafted pixmap image.
- DSA-816: xfree86 -- integer overflow
- GLSA-200509-07: X.Org: Heap overflow in pixmap allocation
- MDKSA-2005:164: Updated XFree86/x.org packages fix vulnerability
- RHSA-2005-329: XFree86 security update
- RHSA-2005-396: xorg-x11 security update
- RHSA-2005-501: XFree86 security update
- SA16777: XFree86 Pixmap Creation Integer Overflow Vulnerability
- SA16790: X11 Pixmap Creation Integer Overflow Vulnerability
- SA17044: Sun Java Desktop System XFree86 Pixmap Creation Integer Overflow
- SA17258: Avaya CMS Solaris X11 Pixmap Creation Integer Overflow Vulnerability
- SA17278: Avaya Products XFree86 Pixmap Creation Integer Overflow Vulnerability
- SA19624: SGI ProPack XFree86 Multiple Vulnerabilities
- SECTRACK ID: 1014887: XFree86 pixmap Integer Overflows May Let Local Users Gain Elevated Privileges
- SUSE-SA:2005:056: XFree86-serverxorg-x11-server: remote command execution
- SUSE-SR:2005:023: SUSE Security Summary Report
- US-CERT VU#102441: Multiple X servers fail to properly allocate memory for large pixmaps
- USN-182-1: X server vulnerability
- VUPEN/ADV-2006-3140: HP Security Update Fixes X.Org X Server Local Privilege Escalation Vulnerability
Reported:
Sep 12, 2005
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