Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2015.1807 2015-07 Security Bulletin: Junos: SRX Network Security Daemon denial of service vulnerability (CVE-2015-5363) 9 July 2015 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Juniper SRX Series services gateways Publisher: Juniper Networks Operating System: Juniper Impact/Access: Denial of Service -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2015-5363 Original Bulletin: http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10692 - --------------------------BEGIN INCLUDED TEXT-------------------- 2015-07 Security Bulletin: Junos: SRX Network Security Daemon denial of service vulnerability (CVE-2015-5363) [JSA10692] PRODUCT AFFECTED: This issue can affect all SRX Series services gateways. PROBLEM: The SRX Network Security Daemon (nsd) in SRX Series services gateways is susceptible to a denial of service vulnerability. This issue can happen while processing certain DNS response messages for name resolution requests initiated by the SRX device. An attack would require a rogue DNS server. Repeated crashes of the nsd process would prevent SRX's security subsystem from functioning properly. If this condition occurs, security-related configurations cannot be committed and security-related 'show' commands do not work. For example: user@srx> show security zones error: the network-security subsystem is not running Juniper SIRT is not aware of any malicious exploitation of this vulnerability. No other Juniper Networks products or platforms are affected by this issue. This issue has been assigned CVE-2015-5363. SOLUTION: The following software releases have been updated to resolve this specific issue: Junos OS 12.1X44-D50, 12.1X46-D35, 12.1X47-D25, 12.3X48-D15, and all subsequent releases. This issue is being tracked as PR 1067941 and is visible on the Customer Support website. KB16765 - "In which releases are vulnerabilities fixed?" describes which release vulnerabilities are fixed as per our End of Engineering and End of Life support policies. WORKAROUND: No known workaround exists for this issue. IMPLEMENTATION: How to obtain fixed software: Security vulnerabilities in Junos are fixed in the next available Maintenance Release of each supported Junos version. In some cases, a Maintenance Release is not planned to be available in an appropriate time-frame. For these cases, Service Releases are made available in order to be more timely. Security Advisory and Security Notices will indicate which Maintenance and Service Releases contain fixes for the issues described. Upon request to JTAC, customers will be provided download instructions for a Service Release. Although Juniper does not provide formal Release Note documentation for a Service Release, a list of "PRs fixed" can be provided on request. MODIFICATION HISTORY: 2015-07-08: Initial publication RELATED LINKS: KB16613: Overview of the Juniper Networks SIRT Quarterly Security Bulletin Publication Process KB16765: In which releases are vulnerabilities fixed? KB16446: Common Vulnerability Scoring System (CVSS) and Juniper's Security Advisories Report a Vulnerability - How to Contact the Juniper Networks Security Incident Response Team CVE-2015-5363: SRX Network Security Daemon denial of service vulnerability CVSS SCORE: CVSSv2: 5.0 (AV:N/AC:L/Au:N/C:N/I:N/A:P) RISK LEVEL: Medium RISK ASSESSMENT: Information for how Juniper Networks uses CVSS can be found at KB 16446 "Common Vulnerability Scoring System (CVSS) and Juniper's Security Advisories." ACKNOWLEDGEMENTS: - --------------------------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 iQIVAwUBVZ3jLH6ZAP0PgtI9AQLDqA//bx9xBWIgsl//8h1jv9kQEKksfS23/+Np CJ/5x9RTZOS/IoMK9ygJ3hFuwZ9iCxy4OnMq9UJcwWplgiAtNhq2zqCFlEBZBeSz ehyRrXR5jjh2EL37dOL+avKcnk0gPEfeG8LzBpEA5tLQ86iLM6YW7G1LcCClZ7Zg JThPdL1NBddiSLdJ4j7s3boi0blSL5a4/ks96PPj2E72ItZuOlpsl6PeaC3LMHXf MIH4Vs/l3+OB8D8qtsnagr2PrLUQISl5L4oSeN4hmlWrEeBdmWsL/sdqrQT5nDxc ZPH56hwgRP+wMHJtrmhiw1+Cw8oHFQyI8uphsZ9nv//Jio4W6QLimda3rl28ZwOp frCDi5tLfeOpt43Hd4vKptsSRY4mmK7uY0hsRTyuGxtktyCP/RSQASZdXZvLPpsJ OtrJJOUcwl+S7xKHrHBhvMtT5dgCtJ8/OyvNQPnl9MCYBYEKS9CZZ4BQKYscgQH7 6LbjPRSti2V55SsaYoO0TNju9ErEJQPelYE5NgluQ7v6V77WJ/jd958eEsQZZ9dk 8boMddzfKClKaIfPdnElCZlI5MmbSyVNTtrao6BTqIIcvpyQFuIuKBikkOrfiT2w Gbrw8pxWPV5+8OuT+YrkyGtg5pjCNJCn9Z8hcdK9Px+rbSVYFVOOYdtyvnHe7Ugp 2ujbDAhHZTY= =eeEn -----END PGP SIGNATURE-----