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Note: This is an archival copy of Security Sun Alert 267031 as previously published on http://sunsolve.sun.com. Latest version of this security advisory is available from http://support.oracle.com as Sun Alert 1020905.1. |
Category Security Release Phase Resolved 6874719 Product Solaris 9 Operating System Solaris 10 Operating System Sun Java Enterprise System 5 Sun Java Enterprise System 2005 Date of Resolved Release 13-Oct-2009 A heap overflow vulnerability in Network Security Services (NSS): 1. Impact A heap overflow vulnerability in Network Security Services (NSS) may allow a remote SSL server to cause a Denial of Service (DoS) to SSL client applications or to possibly execute arbitrary code with the privileges of the SSL client application, via a long domain name in the subject's Common Name (CN) field of an X.509 certificate, related to the "cert_TestHostName" function. Firefox, Thunderbird, Pidgin and Evolution are examples of vulnerable SSL client applications. This issue is also described in the following document: CVE-2009-2404 at: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-2404 2. Contributing Factors This issue can occur in the following releases: SPARC Platform
Note 2: To determine if a package or a patch is installed on a system, follow these instructions: Solaris Platform To determine if the package SUNWtls is installed, the following command may be used: $ /usr/bin/pkginfo -l SUNWtls
Linux PlatformTo determine if the package "sun-nss" is installed and the version of the installed package, the following command may be used: $ /bin/rpm -q sun-nss
Note: Linux "sun-nss" packages
3.12.2 and earlier are vulnerable to this issue.HP-UX Platform To determine if the package "sun-nss" is installed, the following command may be used: $ /usr/sbin/swlist sun-nss
To determine which patch level for "sun-nss" is installed, the
following command may be used: $ /usr/sbin/swlist 124379\*
Windows PlatformTo determine if "Sun Java Enterprise System" is installed, look into "Add or Remove Programs" from the "Control Panel" and check if "Sun Java(TM) Enterprise System 2005Q4" or"Sun Java(TM) Enterprise System 5" is listed as being currently installed. To determine the list of JES patches installed on the system, the following command may be used: <JES installation directory>\utils\patch\ListJavaESPatches.exeNote 3: All systems with NSS versions prior to NSS 3.12.3 are potentially vulnerable to this issue. Systems with NSS 3.12.3 using the environment variable named "NSS_USE_SHEXP_IN_CERT_NAME" are also potentially vulnerable. Systems with NSS 3.12.3 NOT using the environment variable named "NSS_USE_SHEXP_IN_CERT_NAME" are NOT vulnerable. Systems with NSS 3.12.4 (and later versions), wether or not using the environment variable named "NSS_USE_SHEXP_IN_CERT_NAME", are NOT vulnerable. 3. Symptoms There are no symptoms that would indicate the described issue has been exploited to execute abitrary code. A crafted X.509 certificate which may trigger the vulnerability would contain an unusually long domain name in the Common Name (CN) field. 4. Workaround To work around the described issue on systems with NSS 3.12.3 only, do not set the "NSS_USE_SHEXP_IN_CERT_NAME" environment variable. 5. Resolution This issue is addressed in the following releases WITHOUT the environment variable NSS_USE_SHEXP_IN_CERT_NAME set: SPARC Platform
For more information on Security Sun Alerts, see 1009886.1. This Sun Alert notification is being provided to you on an "AS IS" basis. This Sun Alert notification may contain information provided by third parties. The issues described in this Sun Alert notification may or may not impact your system(s). Sun makes no representations, warranties, or guarantees as to the information contained herein. ANY AND ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE HEREBY DISCLAIMED. BY ACCESSING THIS DOCUMENT YOU ACKNOWLEDGE THAT SUN SHALL IN NO EVENT BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, PUNITIVE, OR CONSEQUENTIAL DAMAGES THAT ARISE OUT OF YOUR USE OR FAILURE TO USE THE INFORMATION CONTAINED HEREIN. This Sun Alert notification contains Sun proprietary and confidential information. It is being provided to you pursuant to the provisions of your agreement to purchase services from Sun, or, if you do not have such an agreement, the Sun.com Terms of Use. This Sun Alert notification may only be used for the purposes contemplated by these agreements. Copyright 2000-2009 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, CA 95054 U.S.A. All rights reserved. References119209-21119211-21 119212-21 119213-20 119214-20 121656-20 142506-02 124379-11 125358-09 125359-09 124392-10 125923-09 Attachments This solution has no attachment | |||||||||||||||
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