Remote denial of service in IPv6 fragment reassembly
CVE-2023-3107

7.5HIGH

Key Information:

Vendor

FreeBSD

Status
FreeBSD
Vendor
CVE Published:
1 August 2023

What is CVE-2023-3107?

The vulnerability arises from an integer overflow triggered by specially crafted IPv6 packets that affect FreeBSD's handling of fragment reassembly. This flaw can cause the kernel to panic, resulting in a denial of service condition, thereby disrupting the availability of the system. System administrators should implement recommended patches to safeguard against potential exploitation.

Affected Version(s)

FreeBSD 13.2-RELEASE < 13.2-RELEASE-p2

FreeBSD 13.1-RELEASE < 13.1-RELEASE-p9

FreeBSD 12.4-RELEASE < 12.4-RELEASE-p4

References

https://security.FreeBSD.org/advisories/FreeBSD-SA-23:06....
vendor-advisory
https://security.netapp.com/advisory/ntap-20230804-0001/

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Zweig of Kunlun Lab
.