CVE-2012-4643 - CVE House
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Status published High CVE-2012-4643

The DHCP server on Cisco Adaptive Security Appliances (ASA) 5500...

Vulnerability Description

The DHCP server on Cisco Adaptive Security Appliances (ASA) 5500 series devices, and the ASA Services Module (ASASM) in Cisco Catalyst 6500 series devices, with software 7.0 before 7.2(5.8), 7.1 before 7.2(5.8), 7.2 before 7.2(5.8), 8.0 before 8.0(5.28), 8.1 before 8.1(2.56), 8.2 before 8.2(5.27), 8.3 before 8.3(2.31), 8.4 before 8.4(3.10), 8.5 before 8.5(1.9), and 8.6 before 8.6(1.5) does not properly allocate memory for DHCP packets, which allows remote attackers to cause a denial of service (device reload) via a series of crafted IPv4 packets, aka Bug ID CSCtw84068.

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

No credits recorded in the NVD database.

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Affected Vendor

Affected Software

adaptive security appliance software, 5500 series adaptive security appliance, catalyst 6500, catalyst 6503-e, catalyst 6504-e, catalyst 6506-e, catalyst 6509-e, catalyst 6509-neb-a, catalyst 6509-v-e, catalyst 6513, catalyst 6513-e
Vulnerable Versions:
7.0, 7.0\(0\), 7.0\(1\), 7.0\(2\), 7.0\(4\), 7.0\(5\), 7.0\(5.2\), 7.1, 7.1\(2\), 7.1\(2.5\), 7.1\(2.27\), 7.1\(2.48\), 7.1\(2.49\), 7.1\(5\), 7.2, 7.2\(1\), 7.2\(1.22\), 7.2\(2\), 7.2\(2.5\), 7.2\(2.7\), 7.2\(2.8\), 7.2\(2.10\), 7.2\(2.14\), 7.2\(2.15\), 7.2\(2.16\), 7.2\(2.17\), 7.2\(2.18\), 7.2\(2.19\), 7.2\(2.48\), 7.2\(3\), 7.2\(4\), 7.2\(5\), 8.0, 8.0\(2\), 8.0\(3\), 8.0\(4\), 8.0\(5\), 8.1, 8.2, 8.2\(1\), 8.2\(2\), 8.2\(3\), 8.2\(3.9\), 8.2\(4\), 8.2\(4.1\), 8.2\(4.4\), 8.2\(5\), 8.3\(1\), 8.3\(2\), 8.4, 8.4\(1\), 8.4\(1.11\), 8.4\(2\), 8.4\(2.11\), 8.5, 8.5\(1\), 8.5\(1.4\), 8.6, 8.6\(1\)

Timeline

Official Publish: October 29th, 2012
Last Modified: August 6th, 2024
Added to House: July 19th, 2026

CVSS Vectors

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.