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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2019.0086 2019-01 Security Bulletin: Junos OS: SRX Series: Crafted HTTP traffic may cause UTM to consume all mbufs, leading to Denial of Service (CVE-2019-0010) 10 January 2019 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Juniper SRX Series Publisher: Juniper Networks Operating System: Juniper Impact/Access: Denial of Service -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2019-0010 Original Bulletin: https://kb.juniper.net/InfoCenter/index?page=content&id=JSA10910 - --------------------------BEGIN INCLUDED TEXT-------------------- 2019-01 Security Bulletin: Junos OS: SRX Series: Crafted HTTP traffic may cause UTM to consume all mbufs, leading to Denial of Service (CVE-2019-0010) Product Affected: This issue affects Junos OS 12.1X46, 12.3X48, 15.1X49. Affected platforms: SRX Series. Problem: An SRX Series Service Gateway configured for Unified Threat Management (UTM) may experience a system crash with the error message "mbuf exceed" -- an indication of memory buffer exhaustion -- due to the receipt of crafted HTTP traffic. Each crafted HTTP packet inspected by UTM consumes mbufs which can be identified through the following log messages: all_logs.0:Jun 8 03:25:03 srx1 node0.fpc4 : SPU3 jmpi mbuf stall 50%. all_logs.0:Jun 8 03:25:13 srx1 node0.fpc4 : SPU3 jmpi mbuf stall 51%. all_logs.0:Jun 8 03:25:24 srx1 node0.fpc4 : SPU3 jmpi mbuf stall 52%. Eventually the system runs out of mbufs and the system crashes (fails over) with the error "mbuf exceed". This issue only occurs when HTTP AV inspection is configured. Devices configured for Web Filtering alone are unaffected by this issue. Affected releases are Junos OS on SRX Series: 12.1X46 versions prior to 12.1X46-D81; 12.3X48 versions prior to 12.3X48-D77; 15.1X49 versions prior to 15.1X49-D101, 15.1X49-D110. This issue might occur when UTM policy is configured and applied to the security policy that inspect HTTP traffic : [security utm feature-profile anti-virus] in combination with: [security policies from-zone to-zone … then permit application-services utm-policy <policy-name>] Juniper SIRT is not aware of any malicious exploitation of this vulnerability. This issue was seen during production usage. This issue has been assigned CVE-2019-0010. Solution: The following software releases have been updated to resolve this specific issue: Junos OS 12.1X46-D81, 12.3X48-D77, 15.1X49-D101, 15.1X49-D110, 17.3R1, and all subsequent releases. This issue is being tracked as PR 1283806 which is visible on the Customer Support website. Note: Juniper SIRT's policy is not to evaluate releases which are beyond End of Engineering (EOE) or End of Life (EOL). Workaround: There are no viable workarounds for this issue. Implementation: Software Releases, patches and updates are available at https://www.juniper.net/support/downloads/. Modification History: 2019-01-09: 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 Security Vulnerability - How to Contact the Juniper Networks Security Incident Response Team CVE-2019-0010 at cve.mitre.org https://kb.juniper.net/JSA10910 CVSS Score: 7.5 (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H) Risk Level: High 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." - --------------------------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. 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If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: https://www.auscert.org.au/bulletins/ =========================================================================== 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 iQIVAwUBXDbZEmaOgq3Tt24GAQgdzA/9HJBtPRxKd3Kp24z8b21EpgKHsEUbia67 E7vvOsTddv9EztPHiKVQ9h3ZU+uGdCvjYcfUrxuXZeaxgq4YFrdaJ2qn5+2ugzeK S6AAu/qjoaGt8hLtIG00IP557zS5Aax7tCBAqr1pEf7hVlywP0Z0V82IggSaNugx y9hW3CmbHdlPNhqy1n8UgInE+lzmd6hMTNVgjUN+Jnu3s4yME+uzPaFW3oueOzCp we4TDF9wT/Y2Zoy1IEUfIgop/KquM05b0zkTR864q/bKY1VUj3v0VSQI9lTIkAOG GaG5qwpAquwow45H5bLojYST4AOaYbDgjVMCyQUa/WFS8w7fCg2pY+l0UBn+MNfx ejckZFZT/Au/xWqCXeoUUX/tpVFPEZu/ZhVhGUNK02a0Z3wZSOlOK/k9oZY2ZCtB gw8u19Krvs2+MvV/2cYhhb4NeuwkPQSHYmpdBfsuhounwKA8QFehnQiXMjgjbNIU 8XLPNeITA5CWWE/dnc0YarwVXrfNguqxdiomFxDuBLGtdq0dSzYqe54GSNMDJXsi 70XMHjxQzXxbe9YlFiwoGraDBTvt9UNQqQy3Vdk0nlAj2hafpUcHjYHDGHw/WAw5 5cEGJuQpvAO5gC8rc2R/EVSJS/B7d5lA0kgNmbz24lSF8N5u6zV11PGj1ZgunJ9v Q9y2ZxOG8zg= =Z6io -----END PGP SIGNATURE-----