DHCP memory leak

CVE-2022-2929
6.5MEDIUM

Key Information

Vendor
Isc
Status
Isc Dhcp
Vendor
CVE Published:
7 October 2022

Badges

👾 Exploit Exists

Summary

In ISC DHCP 1.0 -> 4.4.3, ISC DHCP 4.1-ESV-R1 -> 4.1-ESV-R16-P1 a system with access to a DHCP server, sending DHCP packets crafted to include fqdn labels longer than 63 bytes, could eventually cause the server to run out of memory.

Affected Version(s)

ISC DHCP = 1.0 through versions before 4.1-ESV-R16-P2

ISC DHCP = 4.2 through versions before 4.4.3.-P1

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
High
Attack Vector:
Adjacent Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • 👾

    Exploit exists.

  • Vulnerability published.

  • Vulnerability Reserved.

Collectors

NVD DatabaseMitre Database

Credit

ISC would like to thank VictorV of Cyber Kunlun Lab for discovering and reporting this issue.
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