Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2016.0669 Quagga bgpd with BGP peers enabled for VPNv4 contains a buffer overflow vulnerability 11 March 2016 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: quagga Publisher: CERT/CC Operating System: UNIX variants (UNIX, Linux, OSX) Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2016-2342 Original Bulletin: https://www.kb.cert.org/vuls/id/270232 - --------------------------BEGIN INCLUDED TEXT-------------------- Vulnerability Note VU#270232 Quagga bgpd with BGP peers enabled for VPNv4 contains a buffer overflow vulnerability Original Release date: 10 Mar 2016 | Last revised: 10 Mar 2016 Overview Quagga, version 0.99.24.1 and earlier, contains a buffer overflow vulnerability in bgpd with BGP peers enabled for VPNv4 that may leveraged to gain code execution. Description CWE-121: Stack-based Buffer Overflow - CVE-2016-2342 Quagga is a software routing suite that implements numerous routing protocols for Unix-based platforms. A memcpy function in the VPNv4 NLRI parser of bgp_mplsvpn.c does not properly check the upper-bound length of received Labeled-VPN SAFI routes data, which may allow for arbitrary code execution on the stack. Note that hosts are only vulnerable if bgpd is running with BGP peers enabled for VPNv4, which is not a default configuration. For more details, refer to the Quagga changelog and commit notes. Impact A malicious BGP peer may execute arbitrary code in particularly configured remote bgpd hosts. Solution Apply an update Quagga has released version 1.0.20160309 which addresses this issue. Vendor Information (Learn More) Vendor Status Date Notified Date Updated Quagga Affected 24 Nov 2015 10 Mar 2016 If you are a vendor and your product is affected, let us know. CVSS Metrics (Learn More) Group Score Vector Base 7.6 AV:N/AC:H/Au:N/C:C/I:C/A:C Temporal 6.0 E:POC/RL:OF/RC:C Environmental 1.5 CDP:ND/TD:L/CR:ND/IR:ND/AR:ND References http://www.quagga.net/ http://nongnu.askapache.com//quagga/quagga-1.0.20160309.changelog.txt http://git.savannah.gnu.org/cgit/quagga.git/commit/?id=a3bc7e9400b214a0f078fdb19596ba54214a1442 Credit Thanks to Kostya Kortchinsky for reporting this vulnerability. This document was written by Joel Land. Other Information CVE IDs: CVE-2016-2342 Date Public: 10 Mar 2016 Date First Published: 10 Mar 2016 Date Last Updated: 10 Mar 2016 Document Revision: 12 Feedback If you have feedback, comments, or additional information about this vulnerability, please send us email. - --------------------------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). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBVuIpon6ZAP0PgtI9AQJvqQ//ZY+CNYMeUZslPXBxaXjHgJk1jUlErlo5 4pAiehPbEL2yKXTXK8qUaARJ7vHRPTwdeztGr/5AAJhJl6MGRzR6xW/fic2XRZ9A tMs9BK3FpPByVoUYq2rvg5Yafb7UyXcNmb07yEDvjw4VND+7qlfwiskPoyvn+7MM qc6KJUcdYHV1R4o1xzAx7rIwG2wijlleNg5Ovi/aNJDitX6VFLYMZdi7FqI7T3q5 bH65MjccMdqvn3+MemRBXyCMmnsoC5B8yyxdVbsow9uxJNR48ufgULBBS7UxHUkS cLKrK3gwfgjFfC9sRUGfnMZBROQmfEJUeDuNQr4iXGxwJixZdDvy+Ch/uaCl4Gua EnooNyAtciTFy10cPKPoW+FGM+p2rI4SOnKY+dxP+jNDAr0jftlXzpU9VAtltUWV MCbmLiuH6r2B0by5wMEh9elZZ/tNhuX9dW0Fn/3UTCOLX1KKh1yqNkV4UfRBFN7B Od8Iz7zM10hjrCd+72W1dgY25rNUixfbEDmZFbwEHtK39xy1jlB9wj/HTz3COTe/ 8SmoQWXn5MLykS8f4kjSxipxroEgeK8xpDCeK88Rd0+MAuEFgIw4NJ/Ti/8t6HSV xyyPqjSrZg57IglL92MO2xQuXqzTZFop1B94G0uoxH1ddreIW/ebKhkoJjqoV3Wv UV7Gb105I6k= =UVDw -----END PGP SIGNATURE-----