Signature Detail
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Short Name |
DNS:QUERY:ISC-BIND-NSEC3-DOS |
|---|---|
Severity |
Major |
Recommended |
No |
Recommended Action |
Drop |
Category |
DNS |
Keywords |
ISC BIND NSEC3-Signed Zones Queries Processing Denial of Service |
Release Date |
2014/02/25 |
Update Number |
2349 |
Supported Platforms |
idp-4.0+, isg-3.0+, j-series-9.5+, mx-11.4+, srx-12.1+, srx-branch-12.1+, vmx-17.4+, vsrx-12.1+, vsrx3bsd-18.2+ |
DNS: ISC BIND NSEC3-Signed Zones Queries Processing Denial of Service
This signature detects attempts to exploit a known vulnerability against ISC BIND NSEC3-Signed Zone Queries. A successful attack can result in a denial-of-service condition.
Extended Description
The query_findclosestnsec3 function in query.c in named in ISC BIND 9.6, 9.7, and 9.8 before 9.8.6-P2 and 9.9 before 9.9.4-P2, and 9.6-ESV before 9.6-ESV-R10-P2, allows remote attackers to cause a denial of service (INSIST assertion failure and daemon exit) via a crafted DNS query to an authoritative nameserver that uses the NSEC3 signing feature.
Affected Products
- Isc bind 9.6
- Isc bind 9.6.0
- Isc bind 9.6.1
- Isc bind 9.6.2
- Isc bind 9.6.3
- Isc bind 9.7.0
- Isc bind 9.7.1
- Isc bind 9.7.2
- Isc bind 9.7.3
- Isc bind 9.7.4
- Isc bind 9.7.5
- Isc bind 9.7.6
- Isc bind 9.7.7
- Isc bind 9.8.0
- Isc bind 9.8.1
- Isc bind 9.8.2
- Isc bind 9.8.3
- Isc bind 9.8.4
- Isc bind 9.8.5
- Isc bind 9.8.6
- Isc bind 9.9.4
References
- BugTraq: 64801
- CVE: CVE-2014-0591