Main Vulnerability Database SB2024011072

SB2024011072 - Heap-based buffer overflow in Juniper Junos OS

Published: January 10, 2024

Security Bulletin ID SB2024011072

CSH Severity

Low

Patch available

YES

Number of vulnerabilities 1

Exploitation vector Local access

Highest impact Denial of service

Breakdown by Severity

Low
Medium
High
Critical

Description

This security bulletin contains information about 1 vulnerability.

1) Heap-based buffer overflow (CVE-ID: CVE-2024-21594)

CWE-ID: CWE-122 - Heap-based Buffer Overflow

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a local authenticated user to perform a denial of service (DoS) attack.

The vulnerability exists due to heap-based buffer overflow error in the Network Services Daemon (NSD). A local authenticated user can cause a Denial of Service (DoS).

On an SRX 5000 Series device, when executing a specific command repeatedly, memory is corrupted, which leads to a Flow Processing Daemon (flowd) crash.

The NSD process has to be restarted to restore services.

Remediation

Install update from vendor's website.

References

https://supportportal.juniper.net/s/article/2024-01-Security-Bulletin-Junos-OS-SRX-5000-Series-Repeated-execution-of-a-specific-CLI-command-causes-a-flowd-crash-CVE-2024-21594