BID:8970

OpenSSL ASN.1 Large Recursion Remote Denial Of Service Vulnerability

Info

OpenSSL ASN.1 Large Recursion Remote Denial Of Service Vulnerability

Bugtraq ID:	8970
Class:	Input Validation Error
CVE:	CVE-2003-0851 CVE-2003-0851
Remote:	Yes
Local:	No
Published:	Nov 04 2003 12:00AM
Updated:	Mar 19 2015 08:52AM
Credit:	Discovery credited to Novell.
Vulnerable:	SGI IRIX 6.5.21 m SGI IRIX 6.5.21 f SGI IRIX 6.5.20 m SGI IRIX 6.5.20 f SGI IRIX 6.5.19 m SGI IRIX 6.5.19 f RedHat Linux 8.0 RedHat Linux 7.3 RedHat Linux 7.2 Opera Software Opera Web Browser 7.22 Opera Software Opera Web Browser 7.21 Opera Software Opera Web Browser 7.20 OpenSSL Project OpenSSL 0.9.7 b + OpenPKG OpenPKG 1.3 OpenSSL Project OpenSSL 0.9.7 a + Conectiva Linux 9.0 + OpenPKG OpenPKG Current OpenSSL Project OpenSSL 0.9.7 + Caldera OpenUnix 8.0 + Caldera UnixWare 7.1.3 + Caldera UnixWare 7.1.1 + FreeBSD FreeBSD 5.0 + OpenBSD OpenBSD 3.2 + OpenPKG OpenPKG 1.2 OpenSSL Project OpenSSL 0.9.6 k + Blue Coat Systems CacheOS CA/SA 4.1.10 + Blue Coat Systems Security Gateway OS 3.1 + Blue Coat Systems Security Gateway OS 3.0 + Blue Coat Systems Security Gateway OS 2.1.5001 SP1 + Blue Coat Systems Security Gateway OS 2.1.9 + Blue Coat Systems Security Gateway OS 2.0 + Slackware Linux 8.1 OpenSSL Project OpenSSL 0.9.6 j OpenSSL Project OpenSSL 0.9.6 i + HP Apache-Based Web Server 1.3.27 .01 + HP Apache-Based Web Server 1.3.27 .00 + HP HP-UX Apache-Based Web Server 1.0.1 .01 + HP HP-UX Apache-Based Web Server 1.0 .07.01 + HP HP-UX Apache-Based Web Server 1.0 .06.02 + HP HP-UX Apache-Based Web Server 1.0 .06.01 + HP HP-UX Apache-Based Web Server 1.0 .05.01 + HP HP-UX Apache-Based Web Server 1.0 .04.01 + HP HP-UX Apache-Based Web Server 1.0 .03.01 + HP HP-UX Apache-Based Web Server 1.0 .02.01 + HP HP-UX Apache-Based Web Server 1.0 .01 + MandrakeSoft Corporate Server 2.1 x86_64 + MandrakeSoft Corporate Server 2.1 + Mandriva Linux Mandrake 9.1 ppc + Mandriva Linux Mandrake 9.1 + Mandriva Linux Mandrake 9.0 + S.u.S.E. Linux Personal 8.2 OpenSSL Project OpenSSL 0.9.6 h OpenSSL Project OpenSSL 0.9.6 g + Conectiva Linux Enterprise Edition 1.0 + FreeBSD FreeBSD 4.7 -RELEASE + FreeBSD FreeBSD 4.7 + HP Apache-Based Web Server 2.0.43 .04 + HP Apache-Based Web Server 2.0.43 .00 + HP Webmin-Based Admin 1.0 .01 + Immunix Immunix OS 7+ + NetBSD NetBSD 1.6 + OpenPKG OpenPKG 1.1 OpenSSL Project OpenSSL 0.9.6 f OpenSSL Project OpenSSL 0.9.6 e + FreeBSD FreeBSD 4.6 -RELEASE + FreeBSD FreeBSD 4.6 OpenSSL Project OpenSSL 0.9.6 d + Slackware Linux 8.1 OpenSSL Project OpenSSL 0.9.6 c + Conectiva Linux 8.0 + Debian Linux 3.0 sparc + Debian Linux 3.0 s/390 + Debian Linux 3.0 ppc + Debian Linux 3.0 mipsel + Debian Linux 3.0 mips + Debian Linux 3.0 m68k + Debian Linux 3.0 ia-64 + Debian Linux 3.0 ia-32 + Debian Linux 3.0 hppa + Debian Linux 3.0 arm + Debian Linux 3.0 alpha + Debian Linux 3.0 + Mandriva Linux Mandrake 8.2 + S.u.S.E. Linux 8.0 i386 + S.u.S.E. Linux 8.0 OpenSSL Project OpenSSL 0.9.6 b + Mandriva Linux Mandrake 8.1 ia64 + Mandriva Linux Mandrake 8.1 + OpenBSD OpenBSD 3.1 + OpenBSD OpenBSD 3.0 + Red Hat Enterprise Linux AS 2.1 IA64 + Red Hat Enterprise Linux AS 2.1 + RedHat Enterprise Linux ES 2.1 IA64 + RedHat Enterprise Linux ES 2.1 + RedHat Enterprise Linux WS 2.1 IA64 + RedHat Enterprise Linux WS 2.1 + RedHat Linux 7.3 i386 + RedHat Linux 7.3 + RedHat Linux 7.2 ia64 + RedHat Linux 7.2 i686 + RedHat Linux 7.2 i386 + RedHat Linux 7.2 + RedHat Linux Advanced Work Station 2.1 + S.u.S.E. Linux 7.3 sparc + S.u.S.E. Linux 7.3 ppc + S.u.S.E. Linux 7.3 i386 + S.u.S.E. Linux Connectivity Server + S.u.S.E. Linux Database Server 0 + S.u.S.E. Linux Firewall on CD + S.u.S.E. Office Server + S.u.S.E. SuSE eMail Server III + Sun Linux 5.0.7 + Sun Linux 5.0.6 + Sun Linux 5.0.5 + Sun Linux 5.0.3 + Sun Linux 5.0 + SuSE SUSE Linux Enterprise Server 7 OpenSSL Project OpenSSL 0.9.6 a + Conectiva Linux 7.0 + NetBSD NetBSD 1.5.3 + NetBSD NetBSD 1.5.2 + NetBSD NetBSD 1.5.1 + NetBSD NetBSD 1.5 + S.u.S.E. Linux 7.2 i386 + S.u.S.E. Linux 7.1 sparc + S.u.S.E. Linux 7.1 ppc + S.u.S.E. Linux 7.1 alpha + S.u.S.E. Linux 7.1 OpenSSL Project OpenSSL 0.9.6 + Caldera OpenLinux Server 3.1.1 + Caldera OpenLinux Server 3.1 + Caldera OpenLinux Workstation 3.1.1 + Caldera OpenLinux Workstation 3.1 + Conectiva Linux 6.0 + EnGarde Secure Linux 1.0.1 + HP Secure OS software for Linux 1.0 + Mandriva Linux Mandrake 8.0 ppc + Mandriva Linux Mandrake 8.0 + NetBSD NetBSD 1.6 beta + NetBSD NetBSD 1.6 + NetBSD NetBSD 1.5.3 + NetBSD NetBSD 1.5.2 + NetBSD NetBSD 1.5.1 + NetBSD NetBSD 1.5 + OpenBSD OpenBSD 2.9 + OpenPKG OpenPKG 1.0 + RedHat Linux 7.3 i386 + RedHat Linux 7.3 + RedHat Linux 7.2 i386 + RedHat Linux 7.2 alpha + RedHat Linux 7.1 i386 + RedHat Linux 7.1 alpha + RedHat Linux 7.0 sparc + RedHat Linux 7.0 i386 + RedHat Linux 7.0 alpha + Trustix Secure Linux 1.5 + Trustix Secure Linux 1.2 + Trustix Secure Linux 1.1 OpenSSL Project OpenSSL 0.9.5 a + Debian Linux 3.0 + HP Secure OS software for Linux 1.0 + Immunix Immunix OS 7.0 + Immunix Immunix OS 6.2 + MandrakeSoft Corporate Server 1.0.1 + MandrakeSoft Single Network Firewall 7.2 + Mandriva Linux Mandrake 7.2 + Mandriva Linux Mandrake 7.1 + OpenBSD OpenBSD 2.8 + OpenBSD OpenBSD 2.7 + Red Hat Linux 6.2 + RedHat Linux 7.3 i386 + RedHat Linux 7.2 ia64 + RedHat Linux 7.2 i686 + RedHat Linux 7.2 i386 + RedHat Linux 7.2 alpha + RedHat Linux 7.2 + RedHat Linux 7.1 ia64 + RedHat Linux 7.1 i386 + RedHat Linux 7.1 alpha + RedHat Linux 7.1 + RedHat Linux 7.0 i386 + RedHat Linux 7.0 alpha + RedHat Linux 7.0 + RedHat Linux 6.2 sparc + RedHat Linux 6.2 i386 + RedHat Linux 6.2 alpha + S.u.S.E. Linux 7.0 sparc + S.u.S.E. Linux 7.0 ppc + S.u.S.E. Linux 7.0 i386 + S.u.S.E. Linux 7.0 alpha OpenSSL Project OpenSSL 0.9.5 + RedHat Linux 6.2 sparc + RedHat Linux 6.2 i386 + RedHat Linux 6.2 alpha OpenSSL Project OpenSSL 0.9.4 + Debian Linux 3.0 + OpenBSD OpenBSD 2.6 OpenSSL Project OpenSSL 0.9.3 OpenSSL Project OpenSSL 0.9.2 b OpenSSL Project OpenSSL 0.9.1 c NetBSD NetBSD 1.6.1 NetBSD NetBSD 1.6 Cisco PIX Firewall 6.3 (1) Cisco PIX Firewall 6.2.2 .111 Cisco PIX Firewall 6.2.2 Cisco PIX Firewall 6.2.1 Cisco PIX Firewall 6.2 (3) Cisco PIX Firewall 6.2 (2) Cisco PIX Firewall 6.2 (1) Cisco PIX Firewall 6.2 Cisco PIX Firewall 6.1.4 Cisco PIX Firewall 6.1.3 Cisco PIX Firewall 6.1 (5) Cisco PIX Firewall 6.1 (4) Cisco PIX Firewall 6.1 (3) Cisco PIX Firewall 6.1 (2) Cisco PIX Firewall 6.1 (1) Cisco PIX Firewall 6.1 + Cisco PIX Firewall 515 + Cisco PIX Firewall 520 Cisco PIX Firewall 6.0.4 Cisco PIX Firewall 6.0.3 Cisco PIX Firewall 6.0 (4.101) Cisco PIX Firewall 6.0 (4) Cisco PIX Firewall 6.0 (2) Cisco PIX Firewall 6.0 (1) Cisco PIX Firewall 6.0 + Cisco PIX Firewall 515 + Cisco PIX Firewall 520 Cisco IOS 12.2SY Cisco IOS 12.2SX Cisco IOS 12.1(11b)E12 Cisco IOS 12.1(11b)E Cisco IOS 12.1(11)EC Cisco IOS 12.1(11)EA1 Cisco IOS 12.1(11)E Cisco Firewall Services Module (FWSM) 2.1 (0.208) Cisco CSS11000 Content Services Switch

Not Vulnerable:	Opera Software Opera Web Browser 7.23 OpenSSL Project OpenSSL 0.9.7 c + OpenPKG OpenPKG 2.0 + Slackware Linux 9.1 + Slackware Linux 9.0 + Slackware Linux -current OpenSSL Project OpenSSL 0.9.6 l Blue Coat Systems Security Gateway OS 3.1.2 Blue Coat Systems Security Gateway OS 2.1.10 Blue Coat Systems CacheOS CA/SA 4.1.12

Discussion

OpenSSL ASN.1 Large Recursion Remote Denial Of Service Vulnerability

A problem has been identified in OpenSSL when handling specific types of ASN.1 requests. This may result in remote attackers creating a denial of service condition.

This issue is also known to affect numerous Cisco products. It is possible that other vendors will also be acknowledging this issue and providing fixes.

Exploit / POC

OpenSSL ASN.1 Large Recursion Remote Denial Of Service Vulnerability

Currently we are not aware of any exploits for this issue. If you feel we are in error or are aware of more recent information, please mail us at: [email protected] <mailto:[email protected]>.

Solution / Fix

OpenSSL ASN.1 Large Recursion Remote Denial Of Service Vulnerability

Solution:
Fixes have been made available by the vendor.

Opera have released a new version of their Internet browser; this version 7.23 includes a patch to address this vulnerability. See attached changelog for further detail.

Cisco has released a revision of their SSL Implementation Vulnerabilities advisory (ID:45643) to include information about products that are affected by this vulnerability and workaround/fix information, additionally Cisco have released software availability dates. Please see the attached advisory for further details about which products are vulnerable and how to obtain fixes. This BID will be updated as Cisco provides more complete information about affected products and fixes.

Guardian Digitial has released security advisory ESA-20031104-029 to address this issue. Affected users are advised to run the webtool to update systems.

BlueCoat Systems has released an advisory stating that it has identified the vulnerability in versions of SGOS prior to 3.1.2 and 2.1.10, as well as CA/SA prior to 4.1.12. Fixed versions are currently in development.

SGI has also released an advisory 20030904-02-P that includes patches which address this issue.

NetBSD has released an advisory that includes updates. Fix details may be found in the attached advisory.

Red Hat advisory RHSA-2004:119-04 was also released for Red Hat Linux Enterprise releases. Please see the attached advisory for further details. Enterprise fixes may be obtained through the Red Hat Network.

RedHat has released an advisory RHSA-2004:139-05 to address this and other issues. Please see the advisory in web references for more information.

RedHat has released Fedora advisory FEDORA-2004-095 dealing with the issues and others. Please see the advisory section for more details.

RedHat has released an advisory RHSA-2004:119-04 to address this and other issues. Please see the advisory in web references for more information.

Fedora advisory FEDORA-2005-1042 is available to address this and other issues in Fedora Core 3. Please see the referenced advisory for more information.

OpenSSL Project OpenSSL 0.9.1 c