Description
event.c in acpid (aka acpid2) before 2.0.11 does not have an appropriate umask setting during execution of event-handler scripts, which might allow local users to (1) perform write operations within directories created by a script, or (2) read files created by a script, via standard filesystem system calls.
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 | acpid | 1:2.0.11-1 | — |
| Debian 13 | acpid | 1:2.0.11-1 | — |
| Debian 12 | acpid | 1:2.0.11-1 | — |
| Debian 6.0 | acpid | 1:2.0.7-1squeeze3 | DSA-2362-1 |
| Debian 5.0 | acpid | 1.0.8-1lenny4 | DSA-2362-1 |
Advisories 1
- DSA-2362-1 acpid - several Debian Security (DSA / DLA) · Mar 9, 2026
References
- https://bugzilla.redhat.com/show_bug.cgi?id=760984
- http://sourceforge.net/u/tedfelix/acpid2/ci/02d0bf29207f17996936ab652717855b15873901/tree/Changelog?force=True
- MDVSA-2012:138 vendor-advisory
- [oss-security] 20111206 Re: CVE request: acpid mailing-list
- https://bugs.launchpad.net/ubuntu/+source/acpid/+bug/893821