CVE-2022-0324
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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.16%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 1.16% probability · 65th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-120, CWE-787
- Affected
- linuxfoundation/software for open networking in the cloud
- Source
- cve_disclosure@tech.gov.sg
References
- https://github.com/sonic-net/sonic-buildimage/security/advisories/GHSA-m4qf-8rrq-mph9Third Party Advisory
- https://govtech-csg.github.io/security-advisories/2022/11/14/CVE-2022-0324.htmlThird Party Advisory
- https://github.com/sonic-net/sonic-buildimage/security/advisories/GHSA-m4qf-8rrq-mph9Third Party Advisory
- https://govtech-csg.github.io/security-advisories/2022/11/14/CVE-2022-0324.htmlThird Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.