Improper handling of unexpected data type in Junos OS - CVE-2023-28961
Published: April 17, 2023
Vulnerability identifier: #VU75151
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2023-28961
CWE-ID: CWE-241
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to send unwanted traffic to the device.
The vulnerability exists due to improper handling of unexpected data type in IPv6 firewall filter processing, which prevents a firewall filter with the term 'from next-header ah' from being properly installed in the packet forwarding engine (PFE).
Affected software
Junos OS
How to mitigate CVE-2023-28961
Install updates from vendor's website.
Junos OS - addressed in versions 20.2R3-S7, 20.4R3-S4, 21.1R3-S3, 21.2R3-S4, 21.3R3, 21.4R3, 22.1R2, 22.2R1