ISC BIND DNSSEC RRset denial of service

bind-dnssec-rrset-dos (28745) The risk level is classified as LowLow Risk

Description:

ISC BIND (Berkeley Internet Name Daemon) is vulnerable to a denial of service caused by improper handling of DNS Security Extensions (DNSSEC) signed Resource Record Sets (RRsets). A remote attacker could send queries for SIG records to a recursive server to cause an assertion failure when more than one SIG RRset is returned or cause an assertion failure on authoritative servers serving RFC 2535 DNSSEC ZONE when queried for SIG records with multiple SIG RRsets. A remote attacker could exploit these vulnerabilities to cause the service to crash.

Platforms Affected:

  • Apple, Mac OS X 10.3.9
  • Apple, Mac OS X 10.4.9
  • Apple, Mac OS X Server 10.3.9
  • Apple, Mac OS X Server 10.4.9
  • Canonical, Ubuntu 5.04
  • Canonical, Ubuntu 5.10
  • Canonical, Ubuntu 6.06 LTS
  • Debian, Debian Linux 3.1
  • Gentoo, Linux
  • ISC, BIND 9.2.3
  • ISC, BIND 9.2.4
  • ISC, BIND 9.2.5
  • ISC, BIND 9.2.6
  • ISC, BIND 9.3
  • ISC, BIND 9.3.0
  • ISC, BIND 9.3.1
  • ISC, BIND 9.3.2
  • MandrakeSoft, Mandrake Linux 2006
  • MandrakeSoft, Mandrake Linux 2006 X86_64
  • MandrakeSoft, Mandrake Linux Corporate Server 3.0
  • MandrakeSoft, Mandrake Linux Corporate Server 3.0 X86_64
  • MandrakeSoft, Mandrake Multi Network Firewall 2.0
  • NetBSD, NetBSD 3.0
  • NetBSD, NetBSD 3.0.1
  • NetBSD, NetBSD 3.0.2
  • NetBSD, NetBSD 4.0 beta
  • NetBSD, NetBSD CURRENT
  • OpenPKG, OpenPKG 2.5
  • OpenPKG, OpenPKG CURRENT
  • Turbolinux, Turbolinux 10 Desktop
  • Turbolinux, Turbolinux 10 F...
  • Turbolinux, Turbolinux 10 Server
  • Turbolinux, Turbolinux 10 Server x64 Ed
  • Turbolinux, Turbolinux 7 Server
  • Turbolinux, Turbolinux 8 Server
  • Turbolinux, Turbolinux FUJI
  • Turbolinux, Turbolinux Home
  • Turbolinux, Turbolinux Multimedia
  • Turbolinux, Turbolinux Personal
  • Turbolinux, Turbolinux Appliance Server 1.0 Hosting Ed
  • Turbolinux, Turbolinux Appliance Server 1.0 Workgroup Ed
  • Turbolinux, Turbolinux Appliance Server 2.0

Remedy:

For Apple Mac OS X:
Apply Apple Security Update 2007-005, available from the Apple Web site. See References.

Upgrade to the latest version of BIND (9.2.6-P1 or later) or (9.3.2-P1 or later), available from the Internet Software Consortium (ISC) Web site. See References.

For Debian GNU/Linux:
Refer to DSA-1172-1 for patch, upgrade, or suggested workaround information. See References.

For Gentoo Linux:
Refer to Gentoo Linux Security Announcement GLSA 200609-11 for patch, upgrade, or suggested workaround information. See References.

For NetBSD:
Refer to NetBSD Security Advisory 2006-022 for patch, upgrade, or suggested workaround information. See References.

For other distributions:
Contact your vendor for upgrade or patch information.

Consequences:

Denial of Service

References:

Reported:

Sep 05, 2006

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