SB20231107128 - Red Hat Enterprise Linux 9 update for frr
Published: November 7, 2023
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 4 secuirty vulnerabilities.
1) Reachable Assertion (CVE-ID: CVE-2022-36440)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a reachable assertion within the peek_for_as4_capability() function. A remote attacker can send specially crafted traffic to the application and perform a denial of service (DoS) attack.
2) Out-of-bounds read (CVE-ID: CVE-2022-40302)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary condition. A remote attacker can use a specially crafted BGP OPEN message with an option of type 0xff, trigger an out-of-bounds read error and cause a denial of service condition on the system.
3) Out-of-bounds read (CVE-ID: CVE-2022-40318)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary condition. A remote attacker can use a specially crafted BGP OPEN message with an option of type 0xff, trigger an out-of-bounds read error and cause a denial of service condition on the system.
4) Out-of-bounds read (CVE-ID: CVE-2022-43681)
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.