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.

s700_800 11.31 Xserver cumulative patch : 

Potential security vulnerabilities have been identified with HP-UX running Xserver. The vulnerabilities could be exploited remotely to execute arbitrary code.

This update fixes multiple vulnerabilities reported by iDefense for the included X server :

  - RENDER Extension heap buffer overflow. (CVE-2008-2360)

  - RENDER Extension crash. (CVE-2008-2361)

  - RENDER Extension memory corruption. (CVE-2008-2362)

  - MIT-SHM arbitrary memory read. (CVE-2008-1379)

  - RECORD and Security extensions memory corruption.
    (CVE-2008-1377)

The remote Redhat Enterprise Linux 4 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2008:0503 advisory.

  - X.org Record and Security extensions memory corruption (CVE-2008-1377)

  - X.org MIT-SHM extension arbitrary memory read (CVE-2008-1379)

  - X.org Render extension AllocateGlyph() heap buffer overflow (CVE-2008-2360)

  - X.org Render extension ProcRenderCreateCursor() crash (CVE-2008-2361)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
33364	CentOS 4 : xorg-x11 (CESA-2008:0503)	Nessus	CentOS Local Security Checks	2008/7/2	2021/1/4	high
33151	RHEL 3 : XFree86 (RHSA-2008:0502)	Nessus	Red Hat Local Security Checks	2008/6/12	2021/1/14	high
33153	RHEL 5 : xorg-x11-server (RHSA-2008:0504)	Nessus	Red Hat Local Security Checks	2008/6/12	2021/1/14	critical
33176	Debian DSA-1595-1 : xorg-server - several vulnerabilities	Nessus	Debian Local Security Checks	2008/6/16	2021/1/4	critical
67700	Oracle Linux 3 : XFree86 (ELSA-2008-0502)	Nessus	Oracle Linux Local Security Checks	2013/7/12	2021/1/14	high
34738	HP-UX PHSS_38840 : HP-UX Running Xserver, Remote Execution of Arbitrary Code (HPSBUX02381 SSRT080083 rev.2)	Nessus	HP-UX Local Security Checks	2008/11/11	2025/8/26	high
34303	SuSE 10 Security Update : Xgl (ZYPP Patch Number 5528)	Nessus	SuSE Local Security Checks	2008/9/28	2021/1/14	critical
33152	RHEL 4 : xorg-x11 (RHSA-2008:0503)	Nessus	Red Hat Local Security Checks	2008/6/12	2024/4/21	critical

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