First published: Thu Oct 12 2023(Updated: )
An Improper Input Validation vulnerability in the Packet Forwarding Engine of Juniper Networks Junos OS allows an unauthenticated, network-based attacker to cause memory leak, leading to Denial of Service (DoS). On all Junos OS QFX5000 Series platforms, when pseudo-VTEP (Virtual Tunnel End Point) is configured under EVPN-VXLAN scenario, and specific DHCP packets are transmitted, DMA memory leak is observed. Continuous receipt of these specific DHCP packets will cause memory leak to reach 99% and then cause the protocols to stop working and traffic is impacted, leading to Denial of Service (DoS) condition. A manual reboot of the system recovers from the memory leak. To confirm the memory leak, monitor for "sheaf:possible leak" and "vtep not found" messages in the logs. This issue affects: Juniper Networks Junos OS QFX5000 Series: * All versions prior to 20.4R3-S6; * 21.1 versions prior to 21.1R3-S5; * 21.2 versions prior to 21.2R3-S5; * 21.3 versions prior to 21.3R3-S4; * 21.4 versions prior to 21.4R3-S3; * 22.1 versions prior to 22.1R3-S2; * 22.2 versions prior to 22.2R2-S2, 22.2R3; * 22.3 versions prior to 22.3R2-S1, 22.3R3; * 22.4 versions prior to 22.4R1-S2, 22.4R2.
Credit: sirt@juniper.net sirt@juniper.net
Affected Software | Affected Version | How to fix |
---|---|---|
Juniper JUNOS | <20.4 | |
Juniper JUNOS | =20.4 | |
Juniper JUNOS | =20.4-r1 | |
Juniper JUNOS | =20.4-r1-s1 | |
Juniper JUNOS | =20.4-r2 | |
Juniper JUNOS | =20.4-r2-s1 | |
Juniper JUNOS | =20.4-r2-s2 | |
Juniper JUNOS | =20.4-r3 | |
Juniper JUNOS | =20.4-r3-s1 | |
Juniper JUNOS | =20.4-r3-s2 | |
Juniper JUNOS | =20.4-r3-s3 | |
Juniper JUNOS | =20.4-r3-s4 | |
Juniper JUNOS | =20.4-r3-s5 | |
Juniper JUNOS | =21.1 | |
Juniper JUNOS | =21.1-r1 | |
Juniper JUNOS | =21.1-r1-s1 | |
Juniper JUNOS | =21.1-r2 | |
Juniper JUNOS | =21.1-r2-s1 | |
Juniper JUNOS | =21.1-r2-s2 | |
Juniper JUNOS | =21.1-r3 | |
Juniper JUNOS | =21.1-r3-s1 | |
Juniper JUNOS | =21.1-r3-s2 | |
Juniper JUNOS | =21.1-r3-s3 | |
Juniper JUNOS | =21.1-r3-s4 | |
Juniper JUNOS | =21.2 | |
Juniper JUNOS | =21.2-r1 | |
Juniper JUNOS | =21.2-r1-s1 | |
Juniper JUNOS | =21.2-r1-s2 | |
Juniper JUNOS | =21.2-r2 | |
Juniper JUNOS | =21.2-r2-s1 | |
Juniper JUNOS | =21.2-r2-s2 | |
Juniper JUNOS | =21.2-r3 | |
Juniper JUNOS | =21.2-r3-s1 | |
Juniper JUNOS | =21.2-r3-s2 | |
Juniper JUNOS | =21.2-r3-s3 | |
Juniper JUNOS | =21.2-r3-s4 | |
Juniper JUNOS | =21.3 | |
Juniper JUNOS | =21.3-r1 | |
Juniper JUNOS | =21.3-r1-s1 | |
Juniper JUNOS | =21.3-r1-s2 | |
Juniper JUNOS | =21.3-r2 | |
Juniper JUNOS | =21.3-r2-s1 | |
Juniper JUNOS | =21.3-r2-s2 | |
Juniper JUNOS | =21.3-r3 | |
Juniper JUNOS | =21.3-r3-s1 | |
Juniper JUNOS | =21.3-r3-s2 | |
Juniper JUNOS | =21.3-r3-s3 | |
Juniper JUNOS | =21.4 | |
Juniper JUNOS | =21.4-r1 | |
Juniper JUNOS | =21.4-r1-s1 | |
Juniper JUNOS | =21.4-r1-s2 | |
Juniper JUNOS | =21.4-r2 | |
Juniper JUNOS | =21.4-r2-s1 | |
Juniper JUNOS | =21.4-r2-s2 | |
Juniper JUNOS | =21.4-r3 | |
Juniper JUNOS | =21.4-r3-s1 | |
Juniper JUNOS | =21.4-r3-s2 | |
Juniper JUNOS | =22.1-r1 | |
Juniper JUNOS | =22.1-r1-s1 | |
Juniper JUNOS | =22.1-r1-s2 | |
Juniper JUNOS | =22.1-r2 | |
Juniper JUNOS | =22.1-r2-s1 | |
Juniper JUNOS | =22.1-r2-s2 | |
Juniper JUNOS | =22.1-r3 | |
Juniper JUNOS | =22.1-r3-s1 | |
Juniper JUNOS | =22.2 | |
Juniper JUNOS | =22.2-r1 | |
Juniper JUNOS | =22.2-r1-s1 | |
Juniper JUNOS | =22.2-r1-s2 | |
Juniper JUNOS | =22.2-r2 | |
Juniper JUNOS | =22.2-r2-s1 | |
Juniper JUNOS | =22.3-r1 | |
Juniper JUNOS | =22.3-r1-s1 | |
Juniper JUNOS | =22.3-r1-s2 | |
Juniper JUNOS | =22.3-r2 | |
Juniper JUNOS | =22.3-r2-s1 | |
Juniper JUNOS | =22.4-r1 | |
Juniper JUNOS | =22.4-r1-s1 | |
Juniper Qfk5110 | ||
Juniper Qfk5120 | ||
Juniper Qfk5130 | ||
Juniper Qfk5200 | ||
Juniper Qfk5210 | ||
Juniper Qfk5220 | ||
Juniper Qfk5230 | ||
Juniper Qfk5700 |
The following software releases have been updated to resolve this specific issue: Junos OS 20.4R3-S6, 21.1R3-S5, 21.2R3-S5, 21.3R3-S4, 21.4R3-S3, 22.1R3-S2, 22.2R2-S2, 22.2R3, 22.3R2-S1, 22.3R3, 22.4R1-S2, 22.4R2, 23.2R1, and all subsequent releases.
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