Description
Untrusted search path vulnerability in hfkernel in hf 0.7.3 and 0.8 allows local users to gain privileges via a Trojan horse killall program in a directory in the PATH, related to improper handling of the -k option.
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 4.0 | hf | 0.7.3-4etch1 | DSA-1668-1 |
Advisories 1
- DSA-1668-1 hf - execution of arbitrary code Debian Security (DSA / DLA) · Mar 9, 2026
References
- hf-hfkernel-privilege-escalation(46806) vdb-entry
- 32855 third-party-advisory
- 50231 vdb-entry
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=504182
- DSA-1668 vendor-advisory
- 32421 vdb-entry
- 32831 third-party-advisory