CVE-2012-4643
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.
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| cisco adaptive_security_appliance_software | 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\(1\) | — |
| cisco 5500_series_adaptive_security_appliance | No range specified | — |
| cisco catalyst_6500 | No range specified | — |
| cisco catalyst_6503-e | No range specified | — |
| cisco catalyst_6504-e | No range specified | — |
| cisco catalyst_6506-e | No range specified | — |
| cisco catalyst_6509-e | No range specified | — |
| cisco catalyst_6509-neb-a | No range specified | — |
| cisco catalyst_6509-v-e | No range specified | — |
| cisco catalyst_6513 | No range specified | — |
| cisco catalyst_6513-e | No range specified | — |
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