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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2015.1123 sol16479: Linux kernel vulnerability CVE-2009-4537 23 April 2015 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: F5 products Publisher: F5 Networks Operating System: Network Appliance Impact/Access: Denial of Service -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2009-4537 CVE-2009-1389 Reference: ASB-2010.0030 ESB-2009.1190.3 ESB-2009.1187 ESB-2009.1131 ESB-2009.1111 ESB-2009.1091 ESB-2009.1059 ESB-2009.1031 Original Bulletin: https://support.f5.com/kb/en-us/solutions/public/16000/400/sol16479.html - --------------------------BEGIN INCLUDED TEXT-------------------- sol16479: Linux kernel vulnerability CVE-2009-4537 Security Advisory Original Publication Date: 04/22/2015 Description drivers/net/r8169.c in the r8169 driver in the Linux kernel 2.6.32.3 and earlier does not properly check the size of an Ethernet frame that exceeds the MTU, which allows remote attackers to (1) cause a denial of service (temporary network outage) via a packet with a crafted size, in conjunction with certain packets containing A characters and certain packets containing E characters; or (2) cause a denial of service (system crash) via a packet with a crafted size, in conjunction with certain packets containing '\0' characters, related to the value of the status register and erroneous behavior associated with the RxMaxSize register. NOTE: this vulnerability exists because of an incorrect fix for CVE-2009-1389. (CVE-2009-4537) Impact Remote attackers may be able to cause a denial-of-service (temporary network outage) via a packet with a crafted size. Status F5 Product Development has assigned ID 511077 (BIG-IP) and ID 461496 (ARX) to this vulnerability, and has evaluated the currently supported releases for potential vulnerability. To determine if your release is known to be vulnerable, the components or features that are affected by the vulnerability, and for information about releases or hotfixes that address the vulnerability, refer to the following table: Product Versions known to be vulnerable Versions known to be not vulnerable Severity Vulnerable component or feature BIG-IP LTM 10.0.0 - 10.2.4 11.0.0 - 11.6.0 High Linux kernel BIG-IP APM 10.1.0 - 10.2.4 11.0.0 - 11.6.0 High Linux kernel BIG-IP ASM 10.0.0 - 10.2.4 11.0.0 - 11.6.0 High Linux kernel BIG-IP Edge Gateway 10.1.0 - 10.2.4 11.0.0 - 11.3.0 High Linux kernel BIG-IP GTM 10.0.0 - 10.2.4 11.0.0 - 11.6.0 High Linux kernel BIG-IP Link Controller 10.0.0 - 10.2.4 11.0.0 - 11.6.0 High Linux kernel BIG-IP PSM 10.0.0 - 10.2.4 11.0.0 - 11.4.1 High Linux kernel BIG-IP WebAccelerator 10.0.0 - 10.2.4 11.0.0 - 11.3.0 High Linux kernel BIG-IP WOM 10.0.0 - 10.2.4 11.0.0 - 11.3.0 High Linux kernel ARX 6.0.0 - 6.4.0 None High Linux kernel Enterprise Manager 2.1.0 - 2.3.0 3.0.0 - 3.1.1 High Linux kernel Note: As of February 17, 2015, AskF5 Security Advisory articles include the Severity value. Security Advisory articles published before this date do not list a Severity value. Recommended Action If the previous table lists a version in the Versions known to be not vulnerable column, you can eliminate this vulnerability by upgrading to the listed version. If the listed version is older than the version you are currently running, or if the table does not list any version in the column, then no upgrade candidate currently exists. F5 responds to vulnerabilities in accordance with the Severity values published in the previous table. The Severity values and other security vulnerability parameters are defined in SOL4602: Overview of the F5 security vulnerability response policy. To mitigate this vulnerability, you should only permit management access to F5 products over a secure network and limit shell access to trusted users. For more information, refer to SOL13309: Restricting access to the Configuration utility by source IP address (11.x) and SOL13092: Overview of securing access to the BIG-IP system. Supplemental Information SOL9970: Subscribing to email notifications regarding F5 products SOL9957: Creating a custom RSS feed to view new and updated documents SOL4918: Overview of the F5 critical issue hotfix policy SOL167: Downloading software and firmware from F5 SOL13123: Managing BIG-IP product hotfixes (11.x) SOL10025: Managing BIG-IP product hotfixes (10.x) - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AusCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. NOTE: This is only the original release of the security bulletin. It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: http://www.auscert.org.au/render.html?cid=1980 =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). 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