Juniper Junos OS: 2023-01 Security Bulletin: Junos OS: SRX Series: The flowd daemon will crash when Unified Policies are used with IPv6 and certain dynamic applications are rejected by the device (JSA70207) (CVE-2023-22411)

Juniper Junos OS: 2023-01 Security Bulletin: Junos OS: SRX Series: The flowd daemon will crash when Unified Policies are used with IPv6 and certain dynamic applications are rejected by the device (JSA70207) (CVE-2023-22411)

Severity

5

CVSS

(AV:N/AC:L/Au:N/C:N/I:N/A:P)

Published

01/13/2023

Created

03/23/2023

Added

03/22/2023

Modified

12/06/2023

Description

An Out-of-Bounds Write vulnerability in Flow Processing Daemon (flowd) of Juniper Networks Junos OS allows an unauthenticated, network-based attacker to cause Denial of Service (DoS). On SRX Series devices using Unified Policies with IPv6, when a specific IPv6 packet goes through a dynamic-application filter which will generate an ICMP deny message, the flowd core is observed and the PFE is restarted. This issue affects: Juniper Networks Junos OS on SRX Series: 19.2 versions prior to 19.2R3-S6; 19.3 versions prior to 19.3R3-S6; 19.4 versions prior to 19.4R3-S9; 20.2 versions prior to 20.2R3-S5; 20.3 versions prior to 20.3R3-S4; 20.4 versions prior to 20.4R3-S3; 21.1 versions prior to 21.1R3; 21.2 versions prior to 21.2R3; 21.3 versions prior to 21.3R2; 21.4 versions prior to 21.4R2.

Solution(s)

• juniper-junos-os-upgrade-latest

References

• https://attackerkb.com/topics/cve-2023-22411
• CVE - 2023-22411
• JSA70207