SB2023041705 - Improper handling of unexpected data type in Junos OS
Published: April 17, 2023
Security Bulletin ID
SB2023041705
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Improper handling of unexpected data type (CVE-ID: CVE-2023-28961)
CWE-ID: CWE-241 - Improper Handling of Unexpected Data Type
CVSSv4: 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/E:U/U:Green
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).
Remediation
Install update from vendor's website.