Description
There is a vulnerability in DHCPv6 packet parsing code that could be explored by remote attacker to craft a packet that could cause buffer overflow in a memcpy call, leading to out-of-bounds memory write that would cause dhcp6relay to crash. Dhcp6relay is a critical process and could cause dhcp relay docker to shutdown.
Discovered by Eugene Lim of GovTech Singapore.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Linux Foundation | Software for Open Networking in the Cloud (SONiC) | 202111 | — |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
GitHub 1 repository
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ngtuonghung/CVE-2022-0324 ★ 0 · Nov 9, 2025
PoC for CVE-2022-0324: Buffer Overflow in dhcp6relay of SONiC
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.