SB2022092837 - Denial of service in Cisco Wireless LAN Controller AireOS Software FIPS Mode
Published: September 28, 2022
Security Bulletin ID
SB2022092837
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Out-of-bounds write (CVE-ID: CVE-2022-20769)
CWE-ID: CWE-787 - Out-of-bounds write
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary error when processing network packets with enabled Federal Information Processing Standards (FIPS) mode. A remote attacker can send specially crafted packets to the affected device, trigger an out-of-bounds write error and perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.