OpenSSL SSL_get_shared_ciphers() buffer overflow

openssl-sslgetsharedciphers-bo (29237) The risk level is classified as HighHigh Risk

Description:

OpenSSL is vulnerable to a buffer overflow, caused by improper bounds checking by the SSL_get_shared_ciphers() function. By sending an overly long list of ciphers to an application that uses the vulnerable function, a remote attacker could overflow a buffer and execute arbitrary code on the system or cause the server to crash.

*CVSS:

Base Score: 7
  Access Vector: Remote
  Access Complexity: Low
  Authentication: Not Required
  Confidentiality Impact: Partial
  Integrity Impact: Partial
  Availability Impact: Partial
 
Temporal Score: 5.2
  Exploitability: Unproven
  Remediation Level: Official-Fix
  Report Confidence: Confirmed

Consequences:

Gain Access

Remedy:

Apply Apple Security Update 2006-007, available from the Apple Web site. See References.

Upgrade to the latest version of OpenSSL (0.9.7l or 0.9.8d or later), as listed in OpenSSL Security Advisory [28th September 2006]. See References.

For Ubuntu Linux:
Refer to USN-353-1 for patch, upgrade, or workaround information. See References.

For FreeBSD:
Refer to FreeBSD-SA-06:23.openssl for patch, upgrade, or workaround information. See References.

For Debian GNU/Linux:
Refer to DSA-1185-1 for patch, upgrade, or suggested workaround information. See References.

For Debian GNU/Linux (openssl096):
Refer to DSA-1195-1 for patch, upgrade, or suggested workaround information. See References.

For Red Hat Linux:
Refer to RHSA-2006:0695-12 for patch, upgrade, or suggested workaround information. See References.

For Kolab Server:
Refer to Kolab Security Issue 11 20061002 for patch, upgrade, or suggested workaround information. See References.

For Mandriva Linux:
Refer to MDKSA-2006:172-1 for patch, upgrade, or suggested workaround information. See References.

For OpenVPN:
Refer to OpenVPNT 2.0.x Change Log for patch, upgrade, or suggested workaround information. See References.

For Gentoo Linux:
Refer to Gentoo Linux Security Announcement GLSA 200610-11 for patch, upgrade, or suggested workaround information. See References.

For Gentoo Linux AMD64 x86:
Refer to Gentoo Linux Security Announcement GLSA 200612-11 for patch, upgrade, or suggested workaround information. See References.

For Cisco:
Refer to cisco-sr-20061108-openssl for upgrade information. See References.

For VMware:
Refer to Full-Disclosure Mailing List, Tue Jan 9 02:17:36 GMT 2007 for patch, upgrade, or suggested workaround information. See References.

For SUSE Linux:
Refer to SUSE-SA:2006:058 for patch, upgrade, or suggested workaround information. See References.

For HP Tru64 UNIX (OpenSSL):
Refer to HPSBTU02207 SSRT061239 rev.2 for patch, upgrade, or suggested workaround information. See References.

For HP System Management Homepage:
Refer to HPSBMA02250 SSRT061275 rev.1 for patch, upgrade, or suggested workaround information. See References.

For Sun Solaris:
Refer to Sun Alert ID: 102711 for patch, upgrade, or suggested workaround information. See References.

For Xerox:
Refer to XEROX SECURITY BULLETIN XRX07-001 for patch, upgrade, or suggested workaround information. See References.

For other distributions:
Apply the appropriate update for your system. See References.

References:

Platforms Affected:

  • Apple Mac OS X 10.3.9
  • Apple Mac OS X 10.4.8
  • Apple Mac OS X Server 10.3.9
  • Apple Mac OS X Server 10.4.8
  • Canonical Ubuntu 5.04
  • Canonical Ubuntu 5.10
  • Canonical Ubuntu 6.06 LTS
  • Cisco Access Registrar
  • Cisco Application and Content Networking Software
  • Cisco Application Control Engine Module 1.1
  • Cisco CallManager Express
  • Cisco CiscoWorks Common Management Foundation
  • Cisco CiscoWorks Common Services
  • Cisco Content Services Switch 11500 7.50
  • Cisco Content Services Switch 11500 8.10
  • Cisco CS-MARS 4.2.2
  • Cisco GSS 4480 Global Site Selector
  • Cisco GSS 4490 Global Site Selector
  • Cisco GSS 4491 Global Site Selector
  • Cisco GSS 4492 Global Site Selector
  • Cisco IDS
  • Cisco MDS 9500
  • Cisco ONS 15454
  • Cisco Secure Access Control Server
  • Cisco Security Agent 5.1
  • Cisco SIP Proxy Server
  • Cisco Unified CallManager 4.1
  • Cisco Unified Presence Server
  • Cisco Wide Area Application Services
  • Cisco Wide Area File Services Software
  • Cisco Wireless LAN Controller 4.0
  • Compaq Insight Management Agents 3.5.2
  • Compaq Tru64 5.1b3
  • Compaq Tru64 5.1b4
  • Debian Debian Linux 3.1
  • FreeBSD FreeBSD
  • Gentoo Linux
  • HP System Management Homepage 2.1
  • HP System Management Homepage 2.1.1
  • HP System Management Homepage 2.1.2
  • HP System Management Homepage 2.1.3
  • HP System Management Homepage 2.1.4
  • HP System Management Homepage 2.1.5
  • HP System Management Homepage 2.1.6
  • Kolab Kolab Server 2.0.4
  • Kolab Kolab Server 2.1 beta 2
  • MandrakeSoft Mandrake Linux 2006
  • MandrakeSoft Mandrake Linux 2006 X86_64
  • MandrakeSoft Mandrake Linux 2007 X86_64
  • MandrakeSoft Mandrake Linux 2007
  • MandrakeSoft Mandrake Linux Corporate Server 3.0 X86_64
  • MandrakeSoft Mandrake Linux Corporate Server 3.0
  • MandrakeSoft Mandrake Linux Corporate Server 4.0 X86_64
  • MandrakeSoft Mandrake Linux Corporate Server 4.0
  • MandrakeSoft Mandrake Multi Network Firewall 2.0
  • Novell Linux Desktop 9
  • Novell Linux POS 9
  • Novell Open Enterprise Server
  • Novell Open Enterprise Server
  • Novell UnitedLinux 1.0
  • OpenPKG OpenPKG 2-STABLE
  • OpenPKG OpenPKG 2.5
  • OpenPKG OpenPKG CURRENT
  • OpenSSL OpenSSL 0.9.7 Beta1
  • OpenSSL OpenSSL 0.9.7 Beta3
  • OpenSSL OpenSSL 0.9.7 Beta2
  • OpenSSL OpenSSL 0.9.7 Beta5
  • OpenSSL OpenSSL 0.9.7
  • OpenSSL OpenSSL 0.9.7 Beta6
  • OpenSSL OpenSSL 0.9.7 Beta4
  • OpenSSL OpenSSL 0.9.7a
  • OpenSSL OpenSSL 0.9.7b
  • OpenSSL OpenSSL 0.9.7c
  • OpenSSL OpenSSL 0.9.7d
  • OpenSSL OpenSSL 0.9.7e
  • OpenSSL OpenSSL 0.9.7f
  • OpenSSL OpenSSL 0.9.7g
  • OpenSSL OpenSSL 0.9.7h
  • OpenSSL OpenSSL 0.9.7i
  • OpenSSL OpenSSL 0.9.7j
  • OpenSSL OpenSSL 0.9.7k
  • OpenSSL OpenSSL 0.9.8
  • OpenSSL OpenSSL 0.9.8a
  • OpenSSL OpenSSL 0.9.8b
  • OpenSSL OpenSSL 0.9.8c
  • OpenVPN OpenVPN 2.0.9
  • RedHat Enterprise Linux 2.1 AS
  • RedHat Enterprise Linux 2.1 ES
  • RedHat Enterprise Linux 2.1 WS
  • RedHat Enterprise Linux 3 WS
  • RedHat Enterprise Linux 3 ES
  • RedHat Enterprise Linux 3 AS
  • RedHat Enterprise Linux 3 Desktop
  • RedHat Enterprise Linux 4 AS
  • RedHat Enterprise Linux 4 WS
  • RedHat Enterprise Linux 4 ES
  • RedHat Enterprise Linux 4 Desktop
  • RedHat Enterprise Linux ES
  • RedHat Enterprise Linux WS
  • RedHat Enterprise Linux AS
  • RedHat Linux Advanced Workstation 2.1 Itanium
  • RedHat Network Satellite Server 4.2
  • RedHat Network Satellite Server 5.0
  • RedHat Network Satellite Server 5.1
  • Slackware Slackware Linux 10.0
  • Slackware Slackware Linux 9.0
  • Slackware Slackware Linux 9.1
  • Sun Solaris 10 x86
  • Sun Solaris 10 SPARC
  • Sun Solaris 9 SPARC
  • Sun Solaris 9 x86
  • SuSE Linux Enterprise Server 8
  • SUSE SuSE Linux 10.0
  • SUSE SuSE Linux 10.1
  • SUSE SuSE Linux 9.2
  • SUSE SuSE Linux 9.3
  • SuSE SuSE Linux Desktop 1.0
  • SuSE SuSE Linux OpenExchange Server 4
  • SuSE SuSE Linux Retail Solution 8
  • SuSE SuSE Linux School Server
  • SuSE SuSE Linux Standard Server 8
  • SuSE SuSE SLED 10
  • SuSE SuSE SLES 10
  • SuSE SuSE SLES 9
  • Turbolinux Turbolinux 10 Desktop
  • Turbolinux Turbolinux 10 F...
  • Turbolinux Turbolinux 10 Server
  • Turbolinux Turbolinux 10 Server x64 Ed
  • Turbolinux Turbolinux 11 Server
  • Turbolinux Turbolinux 11 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 wizpy
  • Turbolinux Turbolinux Appliance Server 1.0 Hosting Ed
  • Turbolinux Turbolinux Appliance Server 1.0 Workgroup Ed
  • Turbolinux Turbolinux Appliance Server 2.0
  • Xerox WorkCentre 7655
  • Xerox WorkCentre 7665
  • Xerox WorkCentre 232
  • Xerox WorkCentre 238
  • Xerox WorkCentre 245
  • Xerox WorkCentre 255
  • Xerox WorkCentre 265
  • Xerox WorkCentre 275

Reported:

Sep 28, 2006

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