CVE-2022-2929 - CVE House
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Status published Medium CVE-2022-2929

DHCP memory leak

Vulnerability Description

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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

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

References

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Affected Vendor

Affected Software

ISC DHCP
Vulnerable Versions:
1.0 through versions before 4.1-ESV-R16-P2, 4.2 through versions before 4.4.3.-P1

Timeline

Official Publish: October 7th, 2022
Last Modified: September 16th, 2024
Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.