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CVE-2011-4028

Status Candidate

Overview

The LockServer function in os/utils.c in X.Org xserver before 1.11.2 allows local users to determine the existence of arbitrary files via a symlink attack on a temporary lock file, which is handled differently if the file exists.

Related Files

Mandriva Linux Security Advisory 2013-260
Posted Oct 28, 2013
Authored by Mandriva | Site mandriva.com

Mandriva Linux Security Advisory 2013-260 - Multiple vulnerabilities have been discovered and corrected in x11-server. The updated packages have been patched to correct these issues.

tags | advisory, vulnerability
systems | linux, mandriva
advisories | CVE-2010-1166, CVE-2011-4028, CVE-2013-1940, CVE-2013-4396
SHA-256 | 50969d2a09bdf2e48ce14b12843f678f7e90396dd3d3c735132e96cfb2be5013
Red Hat Security Advisory 2012-0939-04
Posted Jun 20, 2012
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2012-0939-04 - X.Org is 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. A flaw was found in the way the X.Org server handled lock files. A local user with access to the system console could use this flaw to determine the existence of a file in a directory not accessible to the user, via a symbolic link attack. A race condition was found in the way the X.Org server managed temporary lock files. A local attacker could use this flaw to perform a symbolic link attack, allowing them to make an arbitrary file world readable, leading to the disclosure of sensitive information.

tags | advisory, arbitrary, local
systems | linux, redhat
advisories | CVE-2011-4028, CVE-2011-4029
SHA-256 | 056bbb8f9c917f5519bbd54df7dac67565efe3792cceacb35765ad54e8033a0f
Red Hat Security Advisory 2012-0303-03
Posted Feb 21, 2012
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2012-0303-03 - X.Org is 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. A flaw was found in the way the X.Org server handled lock files. A local user with access to the system console could use this flaw to determine the existence of a file in a directory not accessible to the user, via a symbolic link attack.

tags | advisory, local
systems | linux, redhat
advisories | CVE-2011-4028
SHA-256 | 39e0f6df5d345b03733218c038d1f55b80c5a015bd9aa8236f5b26bc71730c62
Gentoo Linux Security Advisory 201110-19
Posted Oct 23, 2011
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 201110-19 - Multiple vulnerabilities in the X.Org X server might allow local attackers to disclose information. Versions less than 1.10.4-r1 are affected.

tags | advisory, local, vulnerability
systems | linux, gentoo
advisories | CVE-2011-4028, CVE-2011-4029
SHA-256 | 609832a138e154288bb1dbf8b4f5cc7bfd03135dd2be9fdcf641657ed8183c62
Ubuntu Security Notice USN-1232-1
Posted Oct 18, 2011
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1232-1 - It was discovered that the X server incorrectly handled certain malformed input. An authorized attacker could exploit this to cause the X server to crash, leading to a denial or service, or possibly execute arbitrary code with root privileges. This issue only affected Ubuntu 10.04 LTS and 10.10. It was discovered that the X server incorrectly handled certain malformed input. An authorized attacker could exploit this to cause the X server to crash, leading to a denial or service, or possibly read arbitrary data from the X server process. This issue only affected Ubuntu 10.04 LTS. Various other issues were also addressed.

tags | advisory, arbitrary, root
systems | linux, ubuntu
advisories | CVE-2010-4818, CVE-2010-4819, CVE-2011-4028, CVE-2011-4029
SHA-256 | a04660c7b598d19e4f72432e2a317262cebfd0b9fa6d764460a7bd04e7a74a4f
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