Unscored severity · published Oct 29, 2012
CVE-2012-4643
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…
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CVSS
1.5%
EPSS
No
On KEV
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.
Exploitation
Is it being used?
Exploit prediction (EPSS)1.5% · higher than 75% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
5S
5500 Series Adaptive Security Appliance · Cisco
All versions, or not specified · source: NVD
AS
Adaptive Security Appliance Software · Cisco
7.0; 7.0(0); 7.0(1); 7.0(2); 7.0(4); 7.0(5); +34 more · source: NVD
C6
Catalyst 6500 · Cisco
All versions, or not specified · source: NVD
C6
Catalyst 6503-e · Cisco
All versions, or not specified · source: NVD
C6
Catalyst 6504-e · Cisco
All versions, or not specified · source: NVD
C6
Catalyst 6506-e · Cisco
All versions, or not specified · source: NVD
C6
Catalyst 6509-e · Cisco
All versions, or not specified · source: NVD
C6
Catalyst 6509-neb-a · Cisco
All versions, or not specified · source: NVD
C6
Catalyst 6509-v-e · Cisco
All versions, or not specified · source: NVD
C6
Catalyst 6513 · Cisco
All versions, or not specified · source: NVD
C6
Catalyst 6513-e · Cisco
All versions, or not specified · source: NVD
Affected product
5S
5500 Series Adaptive Security Appliance
Cisco
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2012-4643
CVE.org
https://www.cve.org/CVERecord?id=CVE-2012-4643
osvdb.org
http://osvdb.org/86145
Vendor Advisory
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20121010-asa
www.securityfocus.com
http://www.securityfocus.com/bid/55861
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