Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2020.2341 JSA11024 - 2020-07 Security Bulletin: Junos OS: Receipt of certain genuine BGP packets from any BGP Speaker causes RPD to crash. (CVE-2020-1640) 9 July 2020 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Junos OS Publisher: Juniper Networks Operating System: Juniper Impact/Access: Denial of Service -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2020-1640 Original Bulletin: http://kb.juniper.net/InfoCenter/index?page=content&id=JSA11024 - --------------------------BEGIN INCLUDED TEXT-------------------- 2020-07 Security Bulletin: Junos OS: Receipt of certain genuine BGP packets from any BGP Speaker causes RPD to crash. (CVE-2020-1640) Article ID : JSA11024 Last Updated: 08 Jul 2020 Version : 4.0 Product Affected: This issue affects Junos OS 16.1, 16.2, 17.1, 17.2, 17.3, 17.4, 18.1, 18.2, 18.2X75, 18.3, 18.4, 19.1, 19.2, 19.3, 19.4, 20.1. Problem: An improper use of a validation framework when processing incoming genuine BGP packets within Juniper Networks RPD (routing protocols process) daemon allows an attacker to crash RPD thereby causing a Denial of Service (DoS) condition. This framework requires these packets to be passed. By continuously sending any of these types of formatted genuine packets, an attacker can repeatedly crash the RPD process causing a sustained Denial of Service. This issue can be initiated or propagated through eBGP and iBGP and can impact devices in either modes of use as long as the devices are configured to support the compromised framework and a BGP path is activated or active. This issue affects: Juniper Networks Junos OS 16.1 versions 16.1R7-S6 and later versions prior to 16.1R7-S8; 17.3 versions 17.3R2-S5, 17.3R3-S6 and later versions prior to 17.3R3-S8; 17.4 versions 17.4R2-S7, 17.4R3 and later versions prior to 17.4R2-S11, 17.4R3-S2; 18.1 versions 18.1R3-S7 and later versions prior to 18.1R3-S10; 18.2 versions 18.2R2-S6, 18.2R3-S2 and later versions prior to 18.2R2-S7, 18.2R3-S5; 18.2X75 versions 18.2X75-D12, 18.2X75-D32, 18.2X75-D33, 18.2X75-D51, 18.2X75-D60, 18.2X75-D411, 18.2X75-D420 and later versions prior to 18.2X75-D32, 18.2X75-D33, 18.2X75-D420, 18.2X75-D52, 18.2X75-D60, 18.2X75-D65, 18.2X75-D70;(*1) 18.3 versions 18.3R1-S6, 18.3R2-S3, 18.3R3 and later versions prior to 18.3R2-S4, 18.3R3-S2; 18.4 versions 18.4R1-S5, 18.4R2-S4, 18.4R3 and later versions prior to 18.4R1-S7, 18.4R2-S5, 18.4R3-S3(*2); 19.1 versions 19.1R1-S3, 19.1R2 and later versions prior to 19.1R1-S5, 19.1R2-S2, 19.1R3-S2; 19.2 versions 19.2R1-S2, 19.2R2 and later versions prior to 19.2R1-S5, 19.2R2, 19.2R3; 19.3 versions prior to 19.3R2-S3, 19.3R3; 19.4 versions prior to 19.4R1-S2, 19.4R2, 19.4R3; 20.1 versions prior to 20.1R1-S1, 20.1R2. This issue does not affect Junos OS prior to 16.1R1. This issue affects IPv4 and IPv6 traffic. 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-2020-1640 . Solution: The following software releases have been updated to resolve this specific issue: 16.1R7-S8, 17.3R3-S8, 17.4R2-S11, 17.4R3-S2, 18.1R3-S10, 18.2R2-S7, 18.2R3-S5, 18.2X75-D32, 18.2X75-D33, 18.2X75-D420, 18.2X75-D52, 18.2X75-D60, 18.2X75-D65, 18.2X75-D70;(*1), 18.3R2-S4, 18.3R3-S2, 18.4R1-S7, 18.4R2-S5, 18.4R3-S3(*2), 19.1R1-S5, 19.1R2-S2, 19.1R3-S2, 19.2R1-S5, 19.2R2, 19.2R3, 19.3R2-S3, 19.3R3, 19.4R1-S2, 19.4R2, 19.4R3, 20.1R1-S1, 20.1R2, 20.2R1, and subsequent releases. *1: For 18.2X75 customers. Please speak with your account manager regarding applicable respin release identifiers for affected-to to affected-from, and resolved-in release targets. *2: Pending publication. This issue is being tracked as 1497721 . Workaround: There are no available workarounds for this issue. Implementation: Software Releases, patches and updates are available at https://www.juniper.net /support/downloads/ . Modification History: 2020-07-08: Initial Publication. CVSS Score: 7.5 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H) Severity Level: High Severity 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). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBXwZ+XeNLKJtyKPYoAQhprQ//VE7K/VUQaG3gjLb+KZKAdxAyJkBMI2GC TiH8T8Bj+MriOLS2O4yHaQkpVwY6AZXIBqqLXZTjyDH/FgD3vPBCf17xOMskzwNo mNa0bOw/a2KipeRaePHBnJ9NnWRSl4bMIouTa8/9+80Fdi4wGM3jQ3VLyN7/nh03 yKh1HtTU/H3MgJovSr9ffG0ELwPw7/5mJLApMB6oDufCA+Bbr2F4iT0LpwhmRF/e Hl7yJNLABZMZVvI9rue4EHsRsHeC076L2UjtdvJAtLMkH/6du5wx8V5NmBPDLQPG XRw7BgQsdC7YE9/jqEOaf3huQlbIGokai00/z+rT2nAD1fpxl3ipRFw6e37/IH37 Z3OEsLLSqnxS7sDCxbdql8BXQtSO3hic3Q/kbSS34jrycEiRGHB/h3dCcCNUk9j2 0mY9UlI/lqfBRuv/aRsp4gbnJsfgOybk7iiiNx35LAZqG1y0wbsGQ8JW4YvxTLOy E3LJElhcsXRvLQs4lVBe+akJ6Hwl3GesX4qJS+SdLi37XADXgcSLFXvqaB/xZf4g c6NtL1CrHbMr71HH+lms2kVEPxKe9QULsAWG6aqyUxFqLH4DUWs+NLODS6+tHiOl yMyctEGoH494WvwekY6DyHM3/v23ujOi9eF3WiOmgyoSRRg35oL7w7fjzYp0qYRO w9ApnfwgWBk= =KIfo -----END PGP SIGNATURE-----