var-201205-0381
Vulnerability from variot

Format string vulnerability in the LogVHdrMessageVerb function in os/log.c in X.Org X11 1.11 allows attackers to cause a denial of service or possibly execute arbitrary code via format string specifiers in an input device name. X.Org is an open source implementation of the X.Org Foundation for the X Window System. X.Org is prone to a local format-string vulnerability. An attacker may exploit this issue to execute arbitrary code within the context of the affected application. Failed exploit attempts will result in a denial-of-service condition. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 201207-04


                                        http://security.gentoo.org/

Severity: High Title: X.Org X Server: Privilege escalation Date: July 09, 2012 Bugs: #412609 ID: 201207-04


Synopsis

A format string vulnerability in X.Org X Server may allow local privilege escalation or Denial of Service.

NOTE: Exposure to this vulnerability is reduced in Gentoo due to X.Org X Server being built with "-D_FORTIFY_SOURCE=2" by default.

Impact

A local attacker could gain escalated privileges or cause a Denial of Service condition.

Workaround

There is no known workaround at this time.

Resolution

All X.Org X Server 1.11.x users should upgrade to the latest version:

# emerge --sync # emerge --ask --oneshot --verbose ">=x11-base/xorg-server-1.11.4-r1"=

All X.Org X Server 1.10.x users should upgrade to the latest version:

# emerge --sync # emerge --ask --oneshot --verbose ">=x11-base/xorg-server-1.10.6-r1"=

X.Org X Server 1.9.x is not affected.

References

[ 1 ] CVE-2012-2118 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-2118

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website:

http://security.gentoo.org/glsa/glsa-201207-04.xml

Concerns?

Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users' machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.

License

Copyright 2012 Gentoo Foundation, Inc; referenced text belongs to its owner(s).

The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license.

http://creativecommons.org/licenses/by-sa/2.5 . ========================================================================== Ubuntu Security Notice USN-1502-1 July 11, 2012

xorg-server vulnerability

A security issue affects these releases of Ubuntu and its derivatives:

  • Ubuntu 12.04 LTS

Summary:

The X.Org X server could be made to crash if a specially crafted input device was added.

The default compiler options for the affected release should reduce the vulnerability to a denial of service.

Update instructions:

The problem can be corrected by updating your system to the following package versions:

Ubuntu 12.04 LTS: xserver-xorg-core 2:1.11.4-0ubuntu10.5

After a standard system update you need to reboot your computer to make all the necessary changes.

References: http://www.ubuntu.com/usn/usn-1502-1 CVE-2012-2118

Package Information: https://launchpad.net/ubuntu/+source/xorg-server/2:1.11.4-0ubuntu10.5 .


References:

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-2118 https://wiki.mageia.org/en/Support/Advisories/MGASA-2012-0299


Updated Packages:

Mandriva Business Server 1/X86_64: 00a312b53f5f738eb99136baa320b377 mbs1/x86_64/x11-server-1.11.4-12.1.mbs1.x86_64.rpm 5d7904e06c3ac9f9a2ec7ffc17e08e84 mbs1/x86_64/x11-server-common-1.11.4-12.1.mbs1.x86_64.rpm 0afd9ce4b40f61de739c6e044b18214d mbs1/x86_64/x11-server-devel-1.11.4-12.1.mbs1.x86_64.rpm cd0740f1c1b38629c715d4928b5b073c mbs1/x86_64/x11-server-source-1.11.4-12.1.mbs1.noarch.rpm f67e5502f5a3f539b63f3035b6d2bfeb mbs1/x86_64/x11-server-xdmx-1.11.4-12.1.mbs1.x86_64.rpm 0ade415fecb6b7025db51ca751713284 mbs1/x86_64/x11-server-xephyr-1.11.4-12.1.mbs1.x86_64.rpm e876de003069ff43554b5df2bb44a92c mbs1/x86_64/x11-server-xfake-1.11.4-12.1.mbs1.x86_64.rpm a063fca83d52a911533a0e65507593c5 mbs1/x86_64/x11-server-xfbdev-1.11.4-12.1.mbs1.x86_64.rpm d77deac2203fab6cd1dcff00bee9c706 mbs1/x86_64/x11-server-xnest-1.11.4-12.1.mbs1.x86_64.rpm 0d404052d4611a66228afadf3ce406c9 mbs1/x86_64/x11-server-xorg-1.11.4-12.1.mbs1.x86_64.rpm 28d31da41ae4293f0565a25c385058bd mbs1/x86_64/x11-server-xvfb-1.11.4-12.1.mbs1.x86_64.rpm f2c9457f6009e3d0f1b6cf29b575128f mbs1/SRPMS/x11-server-1.11.4-12.1.mbs1.src.rpm


To upgrade automatically use MandrivaUpdate or urpmi. The verification of md5 checksums and GPG signatures is performed automatically for you.

All packages are signed by Mandriva for security. You can obtain the GPG public key of the Mandriva Security Team by executing:

gpg --recv-keys --keyserver pgp.mit.edu 0x22458A98

You can view other update advisories for Mandriva Linux at:

http://www.mandriva.com/en/support/security/advisories/

If you want to report vulnerabilities, please contact

security_(at)_mandriva.com


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Show details on source website


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    "data": "Format string vulnerability in the LogVHdrMessageVerb function in os/log.c in X.Org X11 1.11 allows attackers to cause a denial of service or possibly execute arbitrary code via format string specifiers in an input device name. X.Org is an open source implementation of the X.Org Foundation for the X Window System. X.Org is prone to a local format-string vulnerability. \nAn attacker may exploit this issue to execute arbitrary code within the context of the affected application. Failed exploit attempts will result in a denial-of-service condition. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -\nGentoo Linux Security Advisory                           GLSA 201207-04\n- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -\n                                            http://security.gentoo.org/\n- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -\n\n Severity: High\n    Title: X.Org X Server: Privilege escalation\n     Date: July 09, 2012\n     Bugs: #412609\n       ID: 201207-04\n\n- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -\n\nSynopsis\n========\n\nA format string vulnerability in X.Org X Server may allow local\nprivilege escalation or Denial of Service. \n\nNOTE: Exposure to this vulnerability is reduced in Gentoo due to X.Org\nX Server being built with \"-D_FORTIFY_SOURCE=2\" by default. \n\nImpact\n======\n\nA local attacker could gain escalated privileges or cause a Denial of\nService condition. \n\nWorkaround\n==========\n\nThere is no known workaround at this time. \n\nResolution\n==========\n\nAll X.Org X Server 1.11.x users should upgrade to the latest version:\n\n  # emerge --sync\n  # emerge --ask --oneshot --verbose \"\u003e=x11-base/xorg-server-1.11.4-r1\"=\n\n\nAll X.Org X Server 1.10.x users should upgrade to the latest version:\n\n  # emerge --sync\n  # emerge --ask --oneshot --verbose \"\u003e=x11-base/xorg-server-1.10.6-r1\"=\n\n\nX.Org X Server 1.9.x is not affected. \n\nReferences\n==========\n\n[ 1 ] CVE-2012-2118\n      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-2118\n\nAvailability\n============\n\nThis GLSA and any updates to it are available for viewing at\nthe Gentoo Security Website:\n\n http://security.gentoo.org/glsa/glsa-201207-04.xml\n\nConcerns?\n=========\n\nSecurity is a primary focus of Gentoo Linux and ensuring the\nconfidentiality and security of our users\u0027 machines is of utmost\nimportance to us. Any security concerns should be addressed to\nsecurity@gentoo.org or alternatively, you may file a bug at\nhttps://bugs.gentoo.org. \n\nLicense\n=======\n\nCopyright 2012 Gentoo Foundation, Inc; referenced text\nbelongs to its owner(s). \n\nThe contents of this document are licensed under the\nCreative Commons - Attribution / Share Alike license. \n\nhttp://creativecommons.org/licenses/by-sa/2.5\n. ==========================================================================\nUbuntu Security Notice USN-1502-1\nJuly 11, 2012\n\nxorg-server vulnerability\n==========================================================================\nA security issue affects these releases of Ubuntu and its derivatives:\n\n- Ubuntu 12.04 LTS\n\nSummary:\n\nThe X.Org X server could be made to crash if a specially crafted input\ndevice was added. \n\nThe default compiler options for the affected release should reduce\nthe vulnerability to a denial of service. \n\nUpdate instructions:\n\nThe problem can be corrected by updating your system to the following\npackage versions:\n\nUbuntu 12.04 LTS:\n  xserver-xorg-core               2:1.11.4-0ubuntu10.5\n\nAfter a standard system update you need to reboot your computer to make\nall the necessary changes. \n\nReferences:\n  http://www.ubuntu.com/usn/usn-1502-1\n  CVE-2012-2118\n\nPackage Information:\n  https://launchpad.net/ubuntu/+source/xorg-server/2:1.11.4-0ubuntu10.5\n. \n _______________________________________________________________________\n\n References:\n\n http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-2118\n https://wiki.mageia.org/en/Support/Advisories/MGASA-2012-0299\n _______________________________________________________________________\n\n Updated Packages:\n\n Mandriva Business Server 1/X86_64:\n 00a312b53f5f738eb99136baa320b377  mbs1/x86_64/x11-server-1.11.4-12.1.mbs1.x86_64.rpm\n 5d7904e06c3ac9f9a2ec7ffc17e08e84  mbs1/x86_64/x11-server-common-1.11.4-12.1.mbs1.x86_64.rpm\n 0afd9ce4b40f61de739c6e044b18214d  mbs1/x86_64/x11-server-devel-1.11.4-12.1.mbs1.x86_64.rpm\n cd0740f1c1b38629c715d4928b5b073c  mbs1/x86_64/x11-server-source-1.11.4-12.1.mbs1.noarch.rpm\n f67e5502f5a3f539b63f3035b6d2bfeb  mbs1/x86_64/x11-server-xdmx-1.11.4-12.1.mbs1.x86_64.rpm\n 0ade415fecb6b7025db51ca751713284  mbs1/x86_64/x11-server-xephyr-1.11.4-12.1.mbs1.x86_64.rpm\n e876de003069ff43554b5df2bb44a92c  mbs1/x86_64/x11-server-xfake-1.11.4-12.1.mbs1.x86_64.rpm\n a063fca83d52a911533a0e65507593c5  mbs1/x86_64/x11-server-xfbdev-1.11.4-12.1.mbs1.x86_64.rpm\n d77deac2203fab6cd1dcff00bee9c706  mbs1/x86_64/x11-server-xnest-1.11.4-12.1.mbs1.x86_64.rpm\n 0d404052d4611a66228afadf3ce406c9  mbs1/x86_64/x11-server-xorg-1.11.4-12.1.mbs1.x86_64.rpm\n 28d31da41ae4293f0565a25c385058bd  mbs1/x86_64/x11-server-xvfb-1.11.4-12.1.mbs1.x86_64.rpm \n f2c9457f6009e3d0f1b6cf29b575128f  mbs1/SRPMS/x11-server-1.11.4-12.1.mbs1.src.rpm\n _______________________________________________________________________\n\n To upgrade automatically use MandrivaUpdate or urpmi.  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