Description
xvfb-run 1.6.1 in Debian GNU/Linux, Ubuntu, Fedora 10, and possibly other operating systems place the magic cookie (MCOOKIE) on the command line, which allows local users to gain privileges by listing the process and its arguments.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | xorg-server | 2:1.6.1.901-3 | — |
| Debian 13 | xorg-server | 2:1.6.1.901-3 | — |
| Debian 12 | xorg-server | 2:1.6.1.901-3 | — |
References
- [oss-security] 20090505 CVE id request: Debian/Ubuntu specific issue in xvfb-run (xorg) mailing-list
- [oss-security] 20090505 Re: CVE id request: Debian/Ubuntu specific issue in xvfb-run (xorg) mailing-list
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=526678
- 39834 third-party-advisory
- 34828 vdb-entry
- xvfbrun-magiccookie-info-disclosure(50348) vdb-entry
- ADV-2010-1185 vdb-entry
- USN-939-1 vendor-advisory