Description
Directory traversal vulnerability in device-linux.c in the router advertisement daemon (radvd) before 1.8.2 allows local users to overwrite arbitrary files, and remote attackers to overwrite certain files, via a .. (dot dot) in an interface name. NOTE: this can be leveraged with a symlink to overwrite arbitrary files.
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 | radvd | 1:1.8-1.1 | — |
| Debian 13 | radvd | 1:1.8-1.1 | — |
| Debian 12 | radvd | 1:1.8-1.1 | — |
| Debian 6.0 | radvd | 1:1.6-1.1 | DSA-2323-1 |
| Debian 5.0 | radvd | 1:1.1-3.1 | DSA-2323-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | radvd | 2.11-1.7 | openSUSE-SU-2024:10558-1 |
Advisories 2
- DSA-2323-1 radvd - several Debian Security (DSA / DLA) · Mar 9, 2026
- openSUSE-SU-2024:10558-1 radvd-2.11-1.7 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026