Signature Detail
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Short Name |
DNS:ISC-BIND-REGEX-DOS |
|---|---|
Severity |
Major |
Recommended |
No |
Recommended Action |
Drop |
Category |
DNS |
Keywords |
ISC BIND Regular Expression Handling Denial of Service |
Release Date |
2013/04/22 |
Update Number |
2256 |
Supported Platforms |
idp-4.0+, isg-3.4+, 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 Regular Expression Handling Denial of Service
This signature detects attempts to exploit a known vulnerability against ISC BIND DNS Server. A successful attack can result in a denial-of-service condition.
Extended Description
libdns in ISC BIND 9.7.x and 9.8.x before 9.8.4-P2, 9.8.5 before 9.8.5b2, 9.9.x before 9.9.2-P2, and 9.9.3 before 9.9.3b2 on UNIX platforms allows remote attackers to cause a denial of service (memory consumption) via a crafted regular expression, as demonstrated by a memory-exhaustion attack against a machine running a named process.
Affected Products
- 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 9.8.0
- 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 9.9.0
- Isc bind 9.9.1
- Isc bind 9.9.2
- Isc bind 9.9.3
References
- CVE: CVE-2013-2266