CVE-2011-4869 validator/val_nsec3.c in Unbound before 1.4.13p2 does not properly perform proof processing for NSEC3-signed zones, which allows remote DNS servers to cause a denial of service (daemon crash) via a ma...
HighCVSS 7.8
EPSS 3.0%
- Published
- Updated
- Exploit status
- No public exploit known
Description
validator/val_nsec3.c in Unbound before 1.4.13p2 does not properly perform proof processing for NSEC3-signed zones, which allows remote DNS servers to cause a denial of service (daemon crash) via a malformed response that lacks expected NSEC3 records, a different vulnerability than CVE-2011-4528.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| debian/unbound(Debian:12) | < 1.4.14-1 | 1.4.14-1 |
| debian/unbound(Debian:13) | < 1.4.14-1 | 1.4.14-1 |
| debian/unbound(Debian:14) | < 1.4.14-1 | 1.4.14-1 |
| unbound | <= 1.4.12 | No fix listed |
| unbound | = 0.0 | No fix listed |
| unbound | = 0.1 | No fix listed |
| unbound | = 0.2 | No fix listed |
| unbound | = 0.3 | No fix listed |
| unbound | = 0.4 | No fix listed |
| unbound | = 0.5 | No fix listed |
| unbound | = 0.6 | No fix listed |
| unbound | = 0.7 | No fix listed |
| unbound | = 0.7.1 | No fix listed |
| unbound | = 0.7.2 | No fix listed |
| unbound | = 0.8 | No fix listed |
| unbound | = 0.09 | No fix listed |
| unbound | = 0.10 | No fix listed |
| unbound | = 0.11 | No fix listed |
| unbound | = 1.0.0 | No fix listed |
| unbound | = 1.0.1 | No fix listed |
| unbound | = 1.0.2 | No fix listed |
| unbound | = 1.1.0 | No fix listed |
| unbound | = 1.1.1 | No fix listed |
| unbound | = 1.2.0 | No fix listed |
| unbound | = 1.2.1 | No fix listed |
Show 17 more
| Product | Affected versions | Fixed in |
|---|---|---|
| unbound | = 1.3.0 | No fix listed |
| unbound | = 1.3.1 | No fix listed |
| unbound | = 1.3.2 | No fix listed |
| unbound | = 1.3.3 | No fix listed |
| unbound | = 1.3.4 | No fix listed |
| unbound | = 1.4.0 | No fix listed |
| unbound | = 1.4.1 | No fix listed |
| unbound | = 1.4.2 | No fix listed |
| unbound | = 1.4.3 | No fix listed |
| unbound | = 1.4.4 | No fix listed |
| unbound | = 1.4.5 | No fix listed |
| unbound | = 1.4.6 | No fix listed |
| unbound | = 1.4.7 | No fix listed |
| unbound | = 1.4.8 | No fix listed |
| unbound | = 1.4.9 | No fix listed |
| unbound | = 1.4.10 | No fix listed |
| unbound | = 1.4.11 | No fix listed |
References
- Debian Security Tracker CVE-2011-4869 vendor-advisory
- FEDORA-2011-17282 vendor-advisory
- FEDORA-2011-17337 vendor-advisory
- 77910 vdb-entry
- 47326 third-party-advisory
- unbound.nlnetlabs.nl patch vendor-advisory
- DSA-2370 vendor-advisory
- VU#209659 patch third-party-advisory us-government-resource
- unbound-nsec3-dos(71868) vdb-entry