Description
nbd-server.c in Network Block Device (nbd-server) 2.9.21 allows remote attackers to cause a denial of service (NULL pointer dereference and crash) by causing a negotiation failure, as demonstrated by specifying a name for a non-existent export.
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 | nbd | 1:2.9.22-1 | — |
| Debian 13 | nbd | 1:2.9.22-1 | — |
| Debian 12 | nbd | 1:2.9.22-1 | — |
References
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=627042.
- GLSA-201206-35 vendor-advisory
- http://nbd.git.sourceforge.net/git/gitweb.cgi?p=nbd/nbd%3Ba=commitdiff%3Bh=ebbbe0b3ce5393fa42a259f5e03d549508586aaa
- [oss-security] 20110517 CVE request: nbd-server mailing-list
- networkblock-negotiation-dos(67502) vdb-entry
- 47884 vdb-entry