SB20231107123 - Remote denial of service in FRRouting FRR
Published: November 7, 2023
Security Bulletin ID
SB20231107123
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 read (CVE-ID: CVE-2022-43681)
CWE-ID: CWE-125 - Out-of-bounds read
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 condition in the BGP daemon. A remote attacker can send a malformed BGP OPEN message that ends with the option length octet (or
the option length word, in case of an extended OPEN message), trigger an out-of-bounds read error and crash the daemon.
Remediation
Install update from vendor's website.