SB2022041364 - Operation on a resource after expiration or release in Junos OS Evolved and Juniper Junos OS

Security Bulletin ID SB2022041364

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) Operation on a resource after expiration or release (CVE-ID: CVE-2022-22197)

CWE-ID: CWE-672 - Operation on a Resource after Expiration or Release

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 non-authenticated attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to operation on a resource after expiration or release error in the Routing Protocol Daemon (RPD). A remote non-authenticated attacker can cause a Denial of Service (DoS).

This issue occurs when proxy-generate route-target filtering is enabled, and certain proxy-route add and delete events are happening.

Remediation

Install update from vendor's website.

References

https://supportportal.juniper.net/s/article/2022-04-Security-Bulletin-Junos-OS-and-Junos-OS-Evolved-An-rpd-core-will-be-observed-with-proxy-BGP-route-target-filtering-enabled-and-certain-route-add-and-delete-event-happening-CVE-2022-22197