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CVE-2008-0008

Published: 29 January 2008

The pa_drop_root function in PulseAudio 0.9.8, and a certain 0.9.9 build, does not check return values from (1) setresuid, (2) setreuid, (3) setuid, and (4) seteuid calls when attempting to drop privileges, which might allow local users to gain privileges by causing those calls to fail via attacks such as resource exhaustion.

Notes

AuthorNote
jdstrand
not possible to exploit in default installation. In fact, need an
LSM to fail the call and then not protect the binary properly, so this is
almost a non-issue on Ubuntu
patched prepared

Priority

Low

Status

Package Release Status
pulseaudio
Launchpad, Ubuntu, Debian
upstream
Released (0.9.9)
dapper Does not exist

edgy Does not exist

feisty
Released (0.9.5-5ubuntu4.2)
gutsy
Released (0.9.6-1ubuntu2.1)
Patches:
vendor: http://www.debian.org/security/2008/dsa-1476
vendor: http://www.mandriva.com/en/security/advisories?name=MDVSA-2008:027