Heap-Based Buffer Overflow in OpenBSD's SLAACD Component
CVE-2022-27882

7.5HIGH

Key Information:

Vendor

OpenBSD
Status
OpenBSD
Vendor
CVE Published:
25 March 2022

What is CVE-2022-27882?

The SLAACD component in OpenBSD versions 6.9 and 7.0 is susceptible to a heap-based buffer overflow due to an integer signedness error when processing crafted IPv6 router advertisements. This flaw can be exploited under certain conditions, although implementations of privilege separation and pledge can mitigate the risks of exploitation.

References

https://blog.quarkslab.com/heap-overflow-in-openbsds-slaa...
x_refsource_MISC
https://ftp.openbsd.org/pub/OpenBSD/patches/7.0/common/01...
x_refsource_MISC
https://ftp.openbsd.org/pub/OpenBSD/patches/6.9/common/03...
x_refsource_MISC

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

.
CVE-2022-27882 : Heap-Based Buffer Overflow in OpenBSD's SLAACD Component