Out-of-bounds write in Junos OS - CVE-2023-22411
Published: January 11, 2023
Vulnerability identifier: #VU82484
CSH Severity: Medium
CVSS v4: 8.7 [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]
CVE-ID: CVE-2023-22411
CWE-ID: CWE-787
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to out-of-bounds write error in Flow Processing Daemon (flowd). A remote non-authenticated attacker can cause Denial of Service (DoS).
On SRX Series devices using Unified Policies with IPv6, when a specific IPv6 packet goes through a dynamic-application filter which will generate an ICMP deny message, the flowd core is observed and the PFE is restarted.
Affected software
Junos OS
How to mitigate CVE-2023-22411
Install updates from vendor's website.
Junos OS - addressed in versions 19.2R3-S6, 19.3R3-S6, 19.4R3-S9, 20.2R3-S5, 20.3R3-S4, 20.4R3-S3, 21.1R3, 21.2R3, 21.3R2, 21.4R2, 22.1R1