1. Gentoo Linux Security Advisory
| Advisory Reference | GLSA 200606-23 / kdebase, KDM |
| Release Date | June 22, 2006 |
| Latest Revision | June 24, 2006: 02 |
| Impact | normal |
| Exploitable | local |
| Package | Vulnerable versions | Unaffected versions | Architecture(s) |
| kde-base/kdebase | < 3.5.2-r2 | >= 3.5.2-r2, revision >= 3.4.3-r2 | All supported architectures |
| kde-base/kdm | < 3.5.2-r1 | >= 3.5.2-r1, revision >= 3.4.3-r2 | All supported architectures |
Related bugreports: #136201
KDM is vulnerable to a symlink vulnerability that can lead to disclosure of information.
KDE is a feature-rich graphical desktop environment for Linux and Unix-like Operating Systems. KDM is the KDE Display Manager and is part of the kdebase package.
Ludwig Nussel discovered that KDM could be tricked into allowing users to read files that would otherwise not be readable.
A local attacker could exploit this issue to obtain potentially sensitive information that is usually not accessable to the local user such as shadow files or other user's files. The default Gentoo user running KDM is root and, as a result, the local attacker can read any file.
There is no known workaround at this time.
All kdebase users should upgrade to the latest version:
Code Listing 3.1: Resolution |
# emerge --sync # emerge --ask --oneshot --verbose kde-base/kdebase |
All KDE split ebuild users should upgrade to the latest KDM version:
Code Listing 3.2: Resolution |
# emerge --sync # emerge --ask --oneshot --verbose kde-base/kdm |