SB2023011172 - Memory leak in Junos OS Evolved and Juniper Junos OS

Security Bulletin ID SB2023011172

CSH Severity

Medium

Patch available

YES

Number of vulnerabilities 1

Exploitation vector Adjecent network

Highest impact Denial of service

Breakdown by Severity

Low
Medium
High
Critical

Description

This security bulletin contains information about 1 vulnerability.

1) Memory leak (CVE-ID: CVE-2023-22406)

CWE-ID: CWE-401 - Missing release of memory after effective lifetime

CVSSv4: CVSS:4.0/AV:A/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.

A Missing Release of Memory after Effective Lifetime vulnerability in the kernel of Juniper Networks Junos OS and Junos OS Evolved allows an adjacent, unauthenticated attacker to cause a Denial of Service (DoS).

In a segment-routing scenario with OSPF as IGP, when a peer interface continuously flaps, next-hop churn will happen and a continuous increase in Routing Protocol Daemon (rpd) memory consumption will be observed.

Remediation

Install update from vendor's website.

References

https://supportportal.juniper.net/s/article/2023-01-Security-Bulletin-Junos-OS-and-Junos-OS-Evolved-A-memory-leak-which-will-ultimately-lead-to-an-rpd-crash-will-be-observed-when-a-peer-interface-flaps-continuously-in-a-Segment-Routing-scenario-CVE-2023-22406