OpenSSL SSLv2 Client_Master_Key Remote Denial Of Service Vulnerability

BID:8746

Info

OpenSSL SSLv2 Client_Master_Key Remote Denial Of Service Vulnerability

Bugtraq ID: 8746
Class: Failure to Handle Exceptional Conditions
CVE: CVE-2002-1568
Remote: Yes
Local: No
Published: Oct 02 2003 12:00AM
Updated: Mar 19 2015 09:04AM
Credit: Discovery of this vulnerability has been credited to Patrik Hornik <[email protected]>.
Vulnerable: Redhat openssl096-0.9.6-6.i386.rpm
+ Redhat Linux 7.2 i386
 Redhat openssl096-0.9.6-11.i386.rpm
+ Redhat Linux 8.0 i386
 Redhat openssl095a-0.9.5a-16.i386.rpm
+ Redhat Linux 8.0 i386
 Redhat openssl095a-0.9.5a-11.i386.rpm
+ Redhat Linux 7.2 i386
 Redhat openssl-python-0.9.6-3.i386.rpm
+ Redhat Linux 7.1 i386
 Redhat openssl-python-0.9.5a-14.i386.rpm
+ Redhat Linux 7.0 i386
 Redhat openssl-perl-0.9.6b-8.i386.rpm
+ Redhat Linux 7.2 i386
 Redhat openssl-perl-0.9.6b-29.i386.rpm
+ Redhat Linux 8.0 i386
 Redhat openssl-perl-0.9.6b-18.i386.rpm
+ Redhat Linux 7.3 i386
 Redhat openssl-perl-0.9.6-3.i386.rpm
+ Redhat Linux 7.1 i386
 Redhat openssl-perl-0.9.5a-14.i386.rpm
+ Redhat Linux 7.0 i386
 Redhat openssl-devel-0.9.6b-8.i386.rpm
+ Redhat Linux 7.2 i386
 Redhat openssl-devel-0.9.6b-29.i386.rpm
+ Redhat Linux 8.0 i386
 Redhat openssl-devel-0.9.6b-18.i386.rpm
+ Redhat Linux 7.3 i386
 Redhat openssl-devel-0.9.6-3.i386.rpm
+ Redhat Linux 7.1 i386
 Redhat openssl-devel-0.9.5a-14.i386.rpm
+ Redhat Linux 7.0 i386
 Redhat openssl-0.9.6b-8.i386.rpm
+ Redhat Linux 7.2 i386
 Redhat openssl-0.9.6b-29.i386.rpm
+ Redhat Linux 8.0 i386
 Redhat openssl-0.9.6b-18.i386.rpm
+ Redhat Linux 7.3 i386
 Redhat openssl-0.9.6-3.i386.rpm
+ Redhat Linux 7.1 i386
 Redhat openssl-0.9.5a-14.i386.rpm
+ Redhat Linux 7.0 i386
 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
+ 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
+ SuSE Linux 8.0 i386
 + SuSE 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
 + Redhat Enterprise Linux AS 2.1 IA64
 + Redhat 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 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 Linux 7.3 sparc
 + SuSE Linux 7.3 ppc
 + SuSE Linux 7.3 i386
 + SuSE SUSE Linux Enterprise Server 7
 OpenSSL Project OpenSSL 0.9.6 a
+ NetBSD NetBSD 1.5.3
+ NetBSD NetBSD 1.5.2
+ NetBSD NetBSD 1.5.1
+ NetBSD NetBSD 1.5
+ SuSE Linux 7.2 i386
 + SuSE Linux 7.1 sparc
 + SuSE Linux 7.1 ppc
 + SuSE Linux 7.1 alpha
 + SuSE 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
+ 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
+ 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
 + Redhat Linux 6.2
 + SuSE Linux 7.0 sparc
 + SuSE Linux 7.0 ppc
 + SuSE Linux 7.0 i386
 + SuSE 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
IBM HTTP Server 1.3.28
IBM HTTP Server 1.3.26 .2
IBM HTTP Server 1.3.26 .1
IBM HTTP Server 1.3.26
IBM HTTP Server 1.3.19 .5
IBM HTTP Server 1.3.19 .4
IBM HTTP Server 1.3.19 .3
IBM HTTP Server 1.3.19 .2
IBM HTTP Server 1.3.19 .1
IBM HTTP Server 1.3.19
- HP HP-UX 11.0
- IBM AIX 4.3.3
- Microsoft Windows NT 4.0 SP6a
 - Microsoft Windows NT 4.0 SP5
 - Microsoft Windows NT 4.0 SP4
 - Redhat Linux 7.1
- Sun Solaris 7.0
 - Sun Solaris 2.6
 - SuSE Linux 7.1
IBM HTTP Server 1.3.12 .7
IBM HTTP Server 1.3.12 .6
IBM HTTP Server 1.3.12 .5
IBM HTTP Server 1.3.12 .4
- IBM AIX 4.3.3
- IBM AIX 5.1
 - Redhat Linux 7.1
- SuSE Linux 7.2
IBM HTTP Server 1.3.12 .3
- HP HP-UX 11.0
- Microsoft Windows NT 4.0 SP6a
 - Microsoft Windows NT 4.0 SP5
 - Microsoft Windows NT 4.0 SP4
 - Sun Solaris 8_sparc
 - Sun Solaris 7.0
 - Sun Solaris 2.6
 IBM HTTP Server 1.3.12 .2
- Caldera OpenLinux 2.4
- Caldera OpenLinux 2.3
- HP HP-UX 11.0
- IBM AIX 4.3.3
- Microsoft Windows NT 4.0
 - Redhat Linux 6.2 sparc
 - Sun Solaris 2.6
 - Turbolinux Turbolinux 6.0
IBM HTTP Server 1.3.12 .1
IBM HTTP Server 1.3.12
Not Vulnerable: 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 0.9.7 beta3
OpenSSL Project OpenSSL 0.9.7 beta2
OpenSSL Project OpenSSL 0.9.7 beta1
OpenSSL Project OpenSSL 0.9.7 b
+ OpenPKG OpenPKG 1.3
OpenSSL Project OpenSSL 0.9.7 a
+ 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

Discussion

OpenSSL SSLv2 Client_Master_Key Remote Denial Of Service Vulnerability

OpenSSL SSLv2 has been reported prone to a remotely triggered denial of service when processing a specially crafted malicious CLIENT_MASTER_KEY message.

It has been reported that a remote attacker may use a maliciously crafted CLIENT_MASTER_KEY message to influence the execution flow of a vulnerable service implmenting SSLv2 into a die() procedure. This will effectively cause the affected process to abort, denying service to legitimate users.

This vulnerability is not reported to be present in OpenSSL versions greater than 0.9.6f of the 0.9.6 series of releases, because the use of the die() procedure is no longer implemented. It is not known whether the 0.9.7 series is also affected.

Exploit / POC

OpenSSL SSLv2 Client_Master_Key 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] &lt;mailto:[email protected]&gt;.

Solution / Fix

OpenSSL SSLv2 Client_Master_Key Remote Denial Of Service Vulnerability

Solution:
OpenSSL have reportedly addressed this issue in versions 0.9.6f and greater.

Red Hat has reportedly addressed this issue in the RHSA-2003:291-11 advisory. See referenced advisory for further information relating to obtaining and applying fixes.

Guardian Digital has released an advisory for EnGarde (ESA-20031003-028) to address this issue. Updates may be applied with the Guardian Digital WebTool. Further details may be found in the attached advisory.

VMware has released fixes to address this issue. Please see the related web reference for more information.

IBM has released fixes to address these issues in IBM HTTP Server.


OpenSSL Project OpenSSL 0.9.6 d

OpenSSL Project OpenSSL 0.9.6 c

OpenSSL Project OpenSSL 0.9.6

OpenSSL Project OpenSSL 0.9.6 b

OpenSSL Project OpenSSL 0.9.6 e

OpenSSL Project OpenSSL 0.9.6 a

IBM HTTP Server 1.3.12 .7

IBM HTTP Server 1.3.12 .2

IBM HTTP Server 1.3.12 .6

IBM HTTP Server 1.3.12 .1

IBM HTTP Server 1.3.12 .3

IBM HTTP Server 1.3.12

IBM HTTP Server 1.3.12 .5

IBM HTTP Server 1.3.12 .4

IBM HTTP Server 1.3.19 .1

IBM HTTP Server 1.3.19 .3

IBM HTTP Server 1.3.19 .4

IBM HTTP Server 1.3.19

IBM HTTP Server 1.3.19 .5

IBM HTTP Server 1.3.19 .2

IBM HTTP Server 1.3.26

IBM HTTP Server 1.3.26 .2

IBM HTTP Server 1.3.26 .1

IBM HTTP Server 1.3.28

References

OpenSSL SSLv2 Client_Master_Key Remote Denial Of Service Vulnerability

References:

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