Description
rpc-gssd in nfs-utils before 1.2.8 performs reverse DNS resolution for server names during GSSAPI authentication, which might allow remote attackers to read otherwise-restricted files via DNS spoofing attacks.
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 | nfs-utils | 1:1.2.8-1 | — |
| Debian 13 | nfs-utils | 1:1.2.8-1 | — |
| Debian 12 | nfs-utils | 1:1.2.8-1 | — |
References
- 58854 vdb-entry
- [linux-nfs] 20130403 Re: [PATCH] Avoid PTR lookups when possible mailing-list
- https://bugzilla.redhat.com/show_bug.cgi?id=948072
- openSUSE-SU-2013:1048 vendor-advisory
- openSUSE-SU-2013:1012 vendor-advisory
- openSUSE-SU-2013:1016 vendor-advisory
- nfsutils-cve20131923-spoofing(85331) vdb-entry
- [linux-nfs] 20130402 Re: [PATCH] Avoid PTR lookups when possible mailing-list