An input validation flaw was found in X.org's Security and Record extensions. A malicious authorized client could exploit the issue to cause a denial of service (crash) or possibly execute arbitrary code with root privileges on the X.org server (CVE-2008-1377).

An input validation flaw was found in X.org's MIT-SHM extension. A client connected to the X.org server could read arbitrary server memory, resulting in the disclosure of sensitive data of other users of the X.org server (CVE-2008-1379).

Multiple integer overflows were found in X.org's Render extension. A malicious authorized client could exploit these issues to cause a denial of service (crash) or possibly execute arbitrary code with root privileges on the X.org server (CVE-2008-2360, CVE-2008-2361, CVE-2008-2362).

In addition, this update corrects a problem that could cause memory corruption or segfaults in the render code of the vnc server on Mandriva Linux 2008.1

The updated packages have been patched to prevent these issues.

The remote host is running a version of Mac OS X 10.5 or 10.4 that does not have Security Update 2009-001 applied.

This security update contains fixes for the following products :

  - AFP Server
  - Apple Pixlet Video
  - CarbonCore
  - CFNetwork
  - Certificate Assistant
  - ClamAV
  - CoreText
  - CUPS
  - DS Tools
  - fetchmail
  - Folder Manager
  - FSEvents
  - Network Time
  - perl
  - Printing
  - python
  - Remote Apple Events
  - Safari RSS
  - servermgrd
  - SMB
  - SquirrelMail
  - X11
  - XTerm

An input validation flaw was discovered in X.org's Security and Record extensions. A malicious authorized client could exploit this issue to cause a denial of service (crash) or, potentially, execute arbitrary code with root privileges on the X.Org server. (CVE-2008-1377)

Multiple integer overflow flaws were found in X.org's Render extension. A malicious authorized client could exploit these issues to cause a denial of service (crash) or, potentially, execute arbitrary code with root privileges on the X.Org server. (CVE-2008-2360, CVE-2008-2361)

An input validation flaw was discovered in X.org's MIT-SHM extension.
A client connected to the X.org server could read arbitrary server memory. This could result in the sensitive data of other users of the X.org server being disclosed. (CVE-2008-1379)

Updated xorg-x11 packages that fix several security issues are now available for Red Hat Enterprise Linux 4.

This update has been rated as having important security impact by the Red Hat Security Response Team.

The xorg-x11 packages contain X.Org, an open source implementation of the X Window System. It provides the basic low-level functionality that full-fledged graphical user interfaces are designed upon.

An input validation flaw was discovered in X.org's Security and Record extensions. A malicious authorized client could exploit this issue to cause a denial of service (crash) or, potentially, execute arbitrary code with root privileges on the X.Org server. (CVE-2008-1377)

Multiple integer overflow flaws were found in X.org's Render extension. A malicious authorized client could exploit these issues to cause a denial of service (crash) or, potentially, execute arbitrary code with root privileges on the X.Org server. (CVE-2008-2360, CVE-2008-2361)

An input validation flaw was discovered in X.org's MIT-SHM extension.
A client connected to the X.org server could read arbitrary server memory. This could result in the sensitive data of other users of the X.org server being disclosed. (CVE-2008-1379)

Users of xorg-x11 should upgrade to these updated packages, which contain backported patches to resolve these issues.

Updated XFree86 packages that fix several security issues are now available for Red Hat Enterprise Linux 3.

This update has been rated as having important security impact by the Red Hat Security Response Team.

XFree86 is an implementation of the X Window System, which provides the core functionality for the Linux graphical desktop.

An input validation flaw was discovered in X.org's Security and Record extensions. A malicious authorized client could exploit this issue to cause a denial of service (crash) or, potentially, execute arbitrary code with root privileges on the X.Org server. (CVE-2008-1377)

Multiple integer overflow flaws were found in X.org's Render extension. A malicious authorized client could exploit these issues to cause a denial of service (crash) or, potentially, execute arbitrary code with root privileges on the X.Org server. (CVE-2008-2360, CVE-2008-2361)

An input validation flaw was discovered in X.org's MIT-SHM extension.
A client connected to the X.org server could read arbitrary server memory. This could result in the sensitive data of other users of the X.org server being disclosed. (CVE-2008-1379)

Users of XFree86 are advised to upgrade to these updated packages, which contain backported patches to resolve these issues.

Updated xorg-x11-server packages that fix several security issues are now available for Red Hat Enterprise Linux 5.

This update has been rated as having important security impact by the Red Hat Security Response Team.

X.Org is an open source implementation of the X Window System. It provides basic low-level functionality that full-fledged graphical user interfaces are designed upon.

An input validation flaw was discovered in X.org's Security and Record extensions. A malicious authorized client could exploit this issue to cause a denial of service (crash) or, potentially, execute arbitrary code with root privileges on the X.Org server. (CVE-2008-1377)

Multiple integer overflow flaws were found in X.org's Render extension. A malicious authorized client could exploit these issues to cause a denial of service (crash) or, potentially, execute arbitrary code with root privileges on the X.Org server. (CVE-2008-2360, CVE-2008-2361, CVE-2008-2362)

An input validation flaw was discovered in X.org's MIT-SHM extension.
A client connected to the X.org server could read arbitrary server memory. This could result in the sensitive data of other users of the X.org server being disclosed. (CVE-2008-1379)

Users of xorg-x11-server should upgrade to these updated packages, which contain backported patches to resolve these issues.

Several local vulnerabilities have been discovered in the X Window system. The Common Vulnerabilities and Exposures project identifies the following problems :

  - CVE-2008-1377     Lack of validation of the parameters of the     SProcSecurityGenerateAuthorization and     SProcRecordCreateContext functions makes it possible for     a specially crafted request to trigger the swapping of     bytes outside the parameter of these requests, causing     memory corruption.

  - CVE-2008-1379     An integer overflow in the validation of the parameters     of the ShmPutImage() request makes it possible to     trigger the copy of arbitrary server memory to a pixmap     that can subsequently be read by the client, to read     arbitrary parts of the X server memory space.

  - CVE-2008-2360     An integer overflow may occur in the computation of the     size of the glyph to be allocated by the AllocateGlyph()     function which will cause less memory to be allocated     than expected, leading to later heap overflow.

  - CVE-2008-2361     An integer overflow may occur in the computation of the     size of the glyph to be allocated by the     ProcRenderCreateCursor() function which will cause less     memory to be allocated than expected, leading later to     dereferencing un-mapped memory, causing a crash of the X     server.

  - CVE-2008-2362     Integer overflows can also occur in the code validating     the parameters for the SProcRenderCreateLinearGradient,     SProcRenderCreateRadialGradient and     SProcRenderCreateConicalGradient functions, leading to     memory corruption by swapping bytes outside of the     intended request parameters.

From Red Hat Security Advisory 2008:0502 :

Updated XFree86 packages that fix several security issues are now available for Red Hat Enterprise Linux 3.

This update has been rated as having important security impact by the Red Hat Security Response Team.

XFree86 is an implementation of the X Window System, which provides the core functionality for the Linux graphical desktop.

An input validation flaw was discovered in X.org's Security and Record extensions. A malicious authorized client could exploit this issue to cause a denial of service (crash) or, potentially, execute arbitrary code with root privileges on the X.Org server. (CVE-2008-1377)

Multiple integer overflow flaws were found in X.org's Render extension. A malicious authorized client could exploit these issues to cause a denial of service (crash) or, potentially, execute arbitrary code with root privileges on the X.Org server. (CVE-2008-2360, CVE-2008-2361)

An input validation flaw was discovered in X.org's MIT-SHM extension.
A client connected to the X.org server could read arbitrary server memory. This could result in the sensitive data of other users of the X.org server being disclosed. (CVE-2008-1379)

Users of XFree86 are advised to upgrade to these updated packages, which contain backported patches to resolve these issues.

ID	Name	Product	Family	Published	Updated	Severity
38138	Mandriva Linux Security Advisory : x11-server (MDVSA-2008:116)	Nessus	Mandriva Local Security Checks	4/23/2009	1/6/2021	critical
35684	Mac OS X Multiple Vulnerabilities (Security Update 2009-001)	Nessus	MacOS X Local Security Checks	2/13/2009	5/28/2024	critical
60422	Scientific Linux Security Update : xorg-x11 on SL4.x i386/x86_64	Nessus	Scientific Linux Local Security Checks	8/1/2012	1/14/2021	high
33364	CentOS 4 : xorg-x11 (CESA-2008:0503)	Nessus	CentOS Local Security Checks	7/2/2008	1/4/2021	high
33151	RHEL 3 : XFree86 (RHSA-2008:0502)	Nessus	Red Hat Local Security Checks	6/12/2008	1/14/2021	high
33153	RHEL 5 : xorg-x11-server (RHSA-2008:0504)	Nessus	Red Hat Local Security Checks	6/12/2008	1/14/2021	critical
33176	Debian DSA-1595-1 : xorg-server - several vulnerabilities	Nessus	Debian Local Security Checks	6/16/2008	1/4/2021	critical
67700	Oracle Linux 3 : XFree86 (ELSA-2008-0502)	Nessus	Oracle Linux Local Security Checks	7/12/2013	1/14/2021	high

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