04 March 2021
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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2021.0762 JSA11105 - 2021-01 Security Bulletin: Junos OS: EX Series, QFX Series, MX Series, SRX Branch Series: Memory leak in packet forwarding engine due to 802.1X authenticator port interface flaps (CVE-2021-0215) 4 March 2021 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Junos OS Publisher: Juniper Networks Operating System: Juniper Impact/Access: Denial of Service -- Remote/Unauthenticated Resolution: None CVE Names: CVE-2021-0215 Original Bulletin: http://kb.juniper.net/InfoCenter/index?page=content&id=JSA11105 - --------------------------BEGIN INCLUDED TEXT-------------------- 2021-01 Security Bulletin: Junos OS: EX Series, QFX Series, MX Series, SRX Branch Series: Memory leak in packet forwarding engine due to 802.1X authenticator port interface flaps (CVE-2021-0215) Article ID : JSA11105 Last Updated: 02 Mar 2021 Version : 2.0 Product Affected: This issue affects Junos OS 14.1X53, 15.1X49, 15.1X53, 16.1, 17.2, 17.3, 17.4, 18.1, 18.2, 18.3, 18.4, 19.1, 19.2, 19.3, 19.4. Affected platforms: EX Series, QFX Series, MX Series, SRX Branch Series. Problem: On Juniper Networks Junos EX series, QFX Series, MX Series, and SRX branch series devices, a memory leak occurs every time the 802.1X authenticator port interface flaps which can lead to other processes, such as the pfex process, responsible for packet forwarding, to crash and restart. An administrator can use the following CLI command to monitor the status of memory consumption: user@device> show task memory detail Please refer to https://kb.juniper.net/KB31522 for details. This issue affects Juniper Networks Junos OS: 14.1X53 versions prior to 14.1X53-D54; 15.1X49 versions prior to 15.1X49-D240 ; 15.1X53 versions prior to 15.1X53-D593; 16.1 versions prior to 16.1R7-S8; 17.2 versions prior to 17.2R3-S4; 17.3 versions prior to 17.3R3-S8; 17.4 versions prior to 17.4R2-S11, 17.4R3-S2; 18.1 versions prior to 18.1R3-S10 ; 18.2 versions prior to 18.2R2-S7, 18.2R3-S3; 18.3 versions prior to 18.3R2-S4, 18.3R3-S2; 18.4 versions prior to 18.4R1-S7, 18.4R2-S4, 18.4R3-S2; 19.1 versions prior to 19.1R1-S5, 19.1R2-S2, 19.1R3; 19.2 versions prior to 19.2R1-S5, 19.2R2; 19.3 versions prior to 19.3R2-S3, 19.3R3; 19.4 versions prior to 19.4R1-S2, 19.4R2. This issue does not affect Juniper Networks Junos OS 12.3, 15.1. This issue may occur when the device is configured as 802.1X authenticator port and the interface flaps. Minimum configuration stanza required related to this issue is the following: [dot1x] 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-2021-0215 . Solution: The following software releases have been updated to resolve this specific issue: 14.1X53-D54, 15.1X49-D240, 15.1X53-D593, 16.1R7-S8, 17.2R3-S4, 17.3R3-S8, 17.4R2-S11, 17.4R3-S2, 18.1R3-S10, 18.2R2-S7, 18.2R3-S3, 18.3R2-S4, 18.3R3-S2, 18.4R1-S7, 18.4R2-S4, 18.4R3-S2, 19.1R1-S5, 19.1R2-S2, 19.1R3, 19.2R1-S5, 19.2R2, 19.3R2-S3, 19.3R3, 19.4R1-S2, 19.4R2, 20.1R1, and all subsequent releases. This issue is being tracked as 1480706 . Workaround: There are no viable workarounds for this issue. Implementation: Software releases or updates are available for download at https:// www.juniper.net/support/downloads/ . Modification History: 2021-01-13: Initial Publication. CVSS Score: 6.5 (CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H) Severity Level: Medium 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 email@example.com 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. 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