Description
arc 5.21j and earlier allows local users to overwrite arbitrary files via a symlink attack on temporary files, a different type of vulnerability than CVE-2005-2945.
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 | arc | 5.21m-1 | — |
| Debian 13 | arc | 5.21m-1 | — |
| Debian 12 | arc | 5.21m-1 | — |
| Debian 3.1 | arc | 5.21l-1sarge1 | DSA-843-1 |
Advisories 1
- DSA-843-1 arc - insecure temporary file Debian Security (DSA / DLA) · Mar 9, 2026
References
- 11 third-party-advisory
- 16805 third-party-advisory
- 20050916 arc insecure temporary file creation mailing-list
- DSA-843 vendor-advisory
- 20050920 Re: arc insecure temporary file creation mailing-list
- 17068 third-party-advisory