Signature Detail
This site is deprecated. Please CLICK HERE for latest updates
Short Name |
DNS:RRSIG-QUERY |
|---|---|
Severity |
Minor |
Recommended |
No |
Category |
DNS |
Keywords |
RRSIG Query |
Release Date |
2011/07/18 |
Update Number |
1956 |
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: RRSIG Query
This signature detects DNS RRSIG queries. RRSIG queries are used by the DNS-SEC specification to securely confirm valid DNS records. Recent security vulnerabilities in ISC BIND's implementation of DNS-SEC are leveraged by RRSIG queries, which are site-configuration-specific. A generic detection signature, other than detecting all RRSIG queries, is not possible. RRSIG queries are not inherently malicious.
Extended Description
ISC BIND is prone to multiple remote denial-of-service vulnerabilities under certain response policy zone (RPZ) configurations. An attacker can exploit these issues to cause the application process to crash, denying service to legitimate users.
Affected Products
- Isc bind 9.8.0
- Isc bind 9.8.0-P1
- Isc bind 9.8.0-P2
- Isc bind 9.8.1b1
- Red_hat fedora 15
- Suse opensuse 11.3
- Suse opensuse 11.4
- Suse suse_linux_enterprise_desktop 10 SP4
- Suse suse_linux_enterprise_desktop 11 SP1
- Suse suse_linux_enterprise_sdk 10 SP4
- Suse suse_linux_enterprise_sdk 11 SP1
- Suse suse_linux_enterprise_server 10 SP4
- Suse suse_linux_enterprise_server 11 SP1
References
- BugTraq: 48566
- BugTraq: 48565
- CVE: CVE-2011-2464
- CVE: CVE-2011-2465
- URL: http://www.rfc-ref.org/RFC-TEXTS/4034/