Description
pimd 2.1.5 and possibly earlier versions allows user-assisted local users to overwrite arbitrary files via a symlink attack on (1) pimd.dump when a USR1 signal is sent, or (2) pimd.cache when USR2 is sent.
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 | pimd | 2.1.6-1 | — |
| Debian 13 | pimd | 2.1.6-1 | — |
| Debian 12 | pimd | 2.1.6-1 | — |
| Debian 5.0 | pimd | 2.1.0-alpha29.17-8.1lenny1 | DSA-2147-1 |
Advisories 1
- DSA-2147-1 pimd - insecure temporary files Debian Security (DSA / DLA) · Mar 9, 2026
References
- DSA-2147 vendor-advisory
- 42793 third-party-advisory
- [oss-security] 20110107 CVE Request - pimd - Insecure file creation in /var/tmp mailing-list
- [oss-security] 20110107 Re: CVE Request - pimd - Insecure file creation in /var/tmp mailing-list
- 42759 third-party-advisory
- pimd-pimd-symlink(64528) vdb-entry
- 45715 vdb-entry
- ADV-2011-0113 vdb-entry
- 70305 vdb-entry