Description
Format string vulnerability in the grant helper (polkit-grant-helper.c) in PolicyKit 0.7 and earlier allows attackers to cause a denial of service (crash) and possibly execute arbitrary code via format strings in a password.
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 | policykit-1 | 0.8-1 | — |
| Debian 13 | policykit-1 | 0.8-1 | — |
| Debian 12 | policykit-1 | 0.8-1 | — |
References
- https://bugs.launchpad.net/ubuntu/+source/policykit/+bug/205037
- MDVSA-2008:087 vendor-advisory
- http://gitweb.freedesktop.org/?p=PolicyKit.git%3Ba=commitdiff%3Bh=5bc86a14cc0e356bcf8b5f861674f842869b1be7
- http://bugs.freedesktop.org/show_bug.cgi?id=15295
- policykit-granthelper-format-string(41877) vdb-entry
- 28702 vdb-entry
- FEDORA-2008-2987 vendor-advisory
- ADV-2008-1254 vdb-entry
- 29755 third-party-advisory