Published:
12 April 2019
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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2019.1269 JSA10930 - 2019-04 Security Bulletin: QFX5000 Series, EX4300, EX4600: A stack buffer overflow vulnerability in Packet Forwarding Engine manager (FXPC) process (CVE-2019-0008) 12 April 2019 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Juniper QFX5000 Juniper EX4300 Juniper EX4600 Publisher: Juniper Networks Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated Denial of Service -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2019-0008 Original Bulletin: http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10930 - --------------------------BEGIN INCLUDED TEXT-------------------- 2019-04 Security Bulletin: QFX5000 Series, EX4300, EX4600: A stack buffer overflow vulnerability in Packet Forwarding Engine manager (FXPC) process (CVE-2019-0008) Article ID: JSA10930 Last Updated: 11 Apr 2019 Version: 3.0 Product Affected: This issue affects Junos OS 14.1X53, 15.1X53, 17.1, 17.2, 17.3, 17.4, 18.1, 18.2, 18.2X75, 18.3 on QFX5000 series, EX4300, EX4600. Problem: A certain sequence of valid BGP or IPv6 BFD packets may trigger a stack based buffer overflow in the Junos OS Packet Forwarding Engine manager (FXPC) process on QFX5000 series, EX4300, EX4600 devices. This issue can result in a crash of the fxpc daemon or may potentially lead to remote code execution. Affected releases are Juniper Networks Junos OS on QFX5000 series, EX4300, EX4600 are: o 14.1X53 versions prior to 14.1X53-D51; o 15.1X53 versions prior to 15.1X53-D235; o 17.1 versions prior to 17.1R3; o 17.2 versions prior to 17.2R3; o 17.3 versions prior to 17.3R3-S2; o 17.4 versions prior to 17.4R2-S1, 17.4R3; o 18.1 versions prior to 18.1R3-S1; o 18.2 versions prior to 18.2R2; o 18.2X75 versions prior to 18.2X75-D30; o 18.3 versions prior to 18.3R2. 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-2019-0008 . Solution: The following software releases have been updated to resolve this specific issue: 14.1X53-D51, 15.1X53-D235, 17.1R3, 17.2R3, 17.3R3-S2, 17.4R2-S1, 17.4R3, 18.1R3-S1, 18.2R2, 18.2X75-D30, 18.3R2, 18.4R1, and all subsequent releases. This issue is being tracked as PR 1371400 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: o 2019-04-10: Initial Publication. o 2019-04-11: add 14.1X53-D51, remove 17.3R4, 18.1R4 from fixed releases. Related Links: o KB16613: Overview of the Juniper Networks SIRT Quarterly Security Bulletin Publication Process. o KB16765: In which releases are vulnerabilities fixed o KB16446: Common Vulnerability Scoring System (CVSS) and Juniper's Security Advisories o Report a Security Vulnerability - How to Contact the Juniper Networks Security Incident Response Team CVSS Score: 9.8 (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H) Risk Level: Critical 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. 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: 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). 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