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Title: ISC BIND Multiple Remote Denial of Service Vulnerabilities

Severity: HIGH

Description:

ISC BIND is prone to multiple denial-of-service vulnerabilities.

The following specific issues have been disclosed:

- A denial-of-service vulnerability affects the SIG query processing. For recursive servers this issue triggers denial-of-service conditions when more than one Resource Record Set (RRset) is returned for a SIG record query. For authoritative servers serving a RFC 2535 DNS Security Extensions (DNSSEC) zone, this issue will cause a crash when the nameserver tries to construct a reponse to a SIG query where there is more than one RRset. This issue can be minimized for recursive servers by restricting which sources can ask for recursion.

- A denial-of-service vulnerability affects the ISC BIND recursive query handling code. An INSIST failure may occur when a response to multiple recursive queries fails to be delivered due to clients no longer being in the recursion queue. Exposure to this issue can be mitigated by restricting which sources can ask for recursion.

An attacker can exploit these issues to cause denial-of-service conditions, effectively denying service to legitimate users.

Affected Products:

• Apple Mac OS X 10.3.0
• Apple Mac OS X 10.3.1
• Apple Mac OS X 10.3.2
• Apple Mac OS X 10.3.3
• Apple Mac OS X 10.3.4
• Apple Mac OS X 10.3.5
• Apple Mac OS X 10.3.6
• Apple Mac OS X 10.3.7
• Apple Mac OS X 10.3.8
• Apple Mac OS X 10.3.9
• Apple Mac OS X 10.4.0
• Apple Mac OS X 10.4.1
• Apple Mac OS X 10.4.2
• Apple Mac OS X 10.4.3
• Apple Mac OS X 10.4.4
• Apple Mac OS X 10.4.5
• Apple Mac OS X 10.4.6
• Apple Mac OS X 10.4.7
• Apple Mac OS X 10.4.8
• Apple Mac OS X 10.4.9
• Apple Mac OS X Server 10.3.0
• Apple Mac OS X Server 10.3.1
• Apple Mac OS X Server 10.3.2
• Apple Mac OS X Server 10.3.3
• Apple Mac OS X Server 10.3.4
• Apple Mac OS X Server 10.3.5
• Apple Mac OS X Server 10.3.6
• Apple Mac OS X Server 10.3.7
• Apple Mac OS X Server 10.3.8
• Apple Mac OS X Server 10.3.9
• Apple Mac OS X Server 10.4.0
• Apple Mac OS X Server 10.4.1
• Apple Mac OS X Server 10.4.2
• Apple Mac OS X Server 10.4.3
• Apple Mac OS X Server 10.4.4
• Apple Mac OS X Server 10.4.5
• Apple Mac OS X Server 10.4.6
• Apple Mac OS X Server 10.4.7
• Apple Mac OS X Server 10.4.8
• Apple Mac OS X Server 10.4.9
• Caldera OpenUnix 8.0.0
• Debian Linux 3.1.0
• Debian Linux 3.1.0 alpha
• Debian Linux 3.1.0 amd64
• Debian Linux 3.1.0 arm
• Debian Linux 3.1.0 hppa
• Debian Linux 3.1.0 ia-32
• Debian Linux 3.1.0 ia-64
• Debian Linux 3.1.0 m68k
• Debian Linux 3.1.0 mips
• Debian Linux 3.1.0 mipsel
• Debian Linux 3.1.0 ppc
• Debian Linux 3.1.0 s/390
• Debian Linux 3.1.0 sparc
• FreeBSD FreeBSD 5.3.0
• FreeBSD FreeBSD 5.3.0 -RELEASE
• FreeBSD FreeBSD 5.3.0 -RELENG
• FreeBSD FreeBSD 5.3.0 -STABLE
• FreeBSD FreeBSD 5.4-STABLE
• FreeBSD FreeBSD 5.4.0 -PRERELEASE
• FreeBSD FreeBSD 5.4.0 -RELEASE
• FreeBSD FreeBSD 5.4.0 -RELENG
• FreeBSD FreeBSD 5.5.0 -RELEASE
• FreeBSD FreeBSD 5.5.0 -STABLE
• FreeBSD FreeBSD 6.0.0 -RELEASE
• FreeBSD FreeBSD 6.0.0 -STABLE
• FreeBSD FreeBSD 6.1 -RELEASE
• FreeBSD FreeBSD 6.1 -STABLE
• Gentoo Linux
• IBM AIX 5.2.0 L
• IBM AIX 5.3.0 L
• ISC BIND 9.2.1
• ISC BIND 9.2.4
• ISC BIND 9.3.0
• ISC BIND 9.3.1
• ISC BIND 9.3.2
• ISC BIND 9.3.3 b
• ISC BIND 9.3.3 rc1
• ISC BIND 9.4.0a1
• ISC BIND 9.4.0a2
• ISC BIND 9.4.0a3
• ISC BIND 9.4.0a4
• ISC BIND 9.4.0a5
• ISC BIND 9.4.0a6
• ISC BIND 9.4.0b1
• Linux kernel 2.6.5
• MandrakeSoft Corporate Server 3.0.0
• MandrakeSoft Corporate Server 3.0.0 x86_64
• MandrakeSoft Linux Mandrake 2006.0.0
• MandrakeSoft Linux Mandrake 2006.0.0 x86_64
• MandrakeSoft Linux Mandrake 7.2.0
• MandrakeSoft Multi Network Firewall 2.0.0
• MandrakeSoft Single Network Firewall 7.2.0
• OpenBSD OpenBSD 3.8
• OpenBSD OpenBSD 3.9
• OpenPKG OpenPKG 2.0.0
• OpenPKG OpenPKG 2.1.0
• OpenPKG OpenPKG 2.2.0
• OpenPKG OpenPKG 2.3.0
• OpenPKG OpenPKG 2.4.0
• OpenPKG OpenPKG 2.5.0
• S.u.S.E. Linux Desktop 10
• S.u.S.E. Linux Enterprise SDK 10
• S.u.S.E. Linux Enterprise Server 10
• S.u.S.E. Linux Enterprise Server 9
• S.u.S.E. Linux Enterprise Server SDK 9
• S.u.S.E. Linux Enterprise Server for S/390
• S.u.S.E. Linux Enterprise Server for S/390 9.0.0
• S.u.S.E. Linux Office Server
• S.u.S.E. Linux Openexchange Server
• S.u.S.E. Linux Personal 10.0.0 OSS
• S.u.S.E. Linux Personal 10.1
• S.u.S.E. Linux Personal 9.1.0
• S.u.S.E. Linux Personal 9.1.0 x86_64
• S.u.S.E. Linux Personal 9.2.0
• S.u.S.E. Linux Personal 9.2.0 x86_64
• S.u.S.E. Linux Personal 9.3.0
• S.u.S.E. Linux Personal 9.3.0 x86_64
• S.u.S.E. Linux Professional 10.0.0
• S.u.S.E. Linux Professional 10.0.0 OSS
• S.u.S.E. Linux Professional 10.1
• S.u.S.E. Linux Professional 9.1.0
• S.u.S.E. Linux Professional 9.1.0 x86_64
• S.u.S.E. Linux Professional 9.2.0
• S.u.S.E. Linux Professional 9.2.0 x86_64
• S.u.S.E. Linux Professional 9.3.0
• S.u.S.E. Linux Professional 9.3.0 x86_64
• S.u.S.E. Novell Linux Desktop 1.0.0
• S.u.S.E. Novell Linux Desktop 9
• S.u.S.E. Novell Linux Desktop 9.0.0
• S.u.S.E. Novell Linux POS 9
• S.u.S.E. Office Server
• S.u.S.E. Open-Enterprise-Server
• S.u.S.E. Open-Enterprise-Server 1
• S.u.S.E. Open-Enterprise-Server 9.0.0
• S.u.S.E. SUSE LINUX Retail Solution 8.0.0
• S.u.S.E. SUSE Linux Enterprise Desktop 10
• S.u.S.E. SUSE Linux Enterprise Server 10
• S.u.S.E. SuSE Linux Open-Xchange 4.1.0
• S.u.S.E. SuSE Linux Openexchange Server 4.0.0
• S.u.S.E. SuSE Linux School Server for i386
• S.u.S.E. SuSE Linux Standard Server 8.0.0
• S.u.S.E. UnitedLinux 1.0.0
• SCO Unixware 7.1.3
• Slackware Linux -current
• Slackware Linux 10.0.0
• Slackware Linux 10.1.0
• Slackware Linux 10.2.0
• Slackware Linux 9.0.0
• Slackware Linux 9.1.0
• Trustix Secure Enterprise Linux 2.0.0
• Trustix Secure Linux 2.2.0
• Trustix Secure Linux 3.0.0
• Turbolinux Appliance Server 2.0
• Turbolinux Appliance Server Hosting Edition 1.0.0
• Turbolinux Appliance Server Workgroup Edition 1.0.0
• Turbolinux Home
• Turbolinux Multimedia
• Turbolinux Personal
• Turbolinux Turbolinux 10 F...
• Turbolinux Turbolinux Desktop 10.0.0
• Turbolinux Turbolinux FUJI
• Turbolinux Turbolinux Server 7.0.0
• Turbolinux Turbolinux Server 8.0.0
• Ubuntu Ubuntu Linux 5.0.0 4 amd64
• Ubuntu Ubuntu Linux 5.0.0 4 i386
• Ubuntu Ubuntu Linux 5.0.0 4 powerpc
• Ubuntu Ubuntu Linux 5.10.0 amd64
• Ubuntu Ubuntu Linux 5.10.0 i386
• Ubuntu Ubuntu Linux 5.10.0 powerpc
• Ubuntu Ubuntu Linux 5.10.0 sparc
• Ubuntu Ubuntu Linux 6.06 LTS amd64
• Ubuntu Ubuntu Linux 6.06 LTS i386
• Ubuntu Ubuntu Linux 6.06 LTS powerpc
• Ubuntu Ubuntu Linux 6.06 LTS sparc
• rPath rPath Linux 1

References:

• ISC: BIND Security
• ISC: ISC BIND
• ISC: ISC BIND 9.3
• NISCC: NISCC Vulnerability Advisory 172003/NISCC/BIND9
• OpenBSD: 010: SECURITY FIX: September 8, 2006
• OpenBSD: 015: SECURITY FIX: September 8, 2006
• US-CERT: VU#697164 BIND vulnerable to an INSIST failure via sending of multiple recursive
• US-CERT: VU#915404 BIND vulnerable to an assertion failure when querying for SIG records

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