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Security Advisory

If you suspect you have found a security defect in BIND or DHCP, or if you wish to inquire about a security issue that you have learned about which has not yet been publicly announced, ISC encourages you to get in touch with our Security Officer using the security-officer@isc.org e-mail address.

However, plain-text e-mail is not a secure choice for communications concerning undisclosed security issues so we ask that you please encrypt your communications to us using the ISC Security Officer public key.

Learn more about Security Vulnerability Disclosure Policy at https://kb.isc.org/article/AA-00861/0

Reporting a Bug

  • To report a bug in BIND, other than a security issue, please contact us via bind9-bugs@isc.org
  • To report a bug in ISC DHCP, other than a security issue, please contact us via  dhcp-bugs@isc.org

For listing of security vulnerabilities about BIND 9, visit ISC’s Knowledge Base’s BIND 9 Vulnerabilities Matrix.

As of Oct, 2010 ISC is now using the CVSS, a program of first.org and NIST, to determine the severity of potential security issues.

BIND

CVE-2013-4854: A specially crafted query can cause BIND to terminate abnormally
A specially crafted query sent to a BIND nameserver can cause it to crash (terminate abnormally). [...]
Fri, Jul 26, 2013
Source: BIND Security Advisory
CVE-2013-3919: A recursive resolver can be crashed by a query for a malformed zone
A defect exists which allows an attacker to crash a BIND 9 recursive resolver with a RUNTIME_CHECK error in resolver.c [...]
Tue, Jun 04, 2013
Source: BIND Security Advisory

[Complete List]

ISC DHCP

CVE-2013-2494: A Vulnerability in libdns Could Cause Excessive Memory Use in ISC DHCP 4.2
A memory exhaustion bug has been discovered in libdns, which is used by ISC DHCP 4.2. Theoretically this could be exploited to cause memory exhaustion in ISC DHCP 4.2. [...]
Mon, Mar 18, 2013
Source: DHCP Security Advisory
CVE-2012-3954: Memory Leaks Found in ISC DHCP
Title: Memory Leaks Found In ISC DHCP [...]
Mon, Jul 23, 2012
Source: DHCP Security Advisory
CVE-2012-3570: An Error in the Handling of an Unexpected Client Identifiers can Cause Server Crash When Serving DHCPv6
Title: An error in the handling of an unexpected client identifiers can cause a server crash when serving DHCPv6. [...]
Mon, Jul 02, 2012
Source: DHCP Security Advisory

[Complete List]