Vulnerability Name:

CVE-2012-4643 (CCN-79176)

Assigned:2012-10-10
Published:2012-10-10
Updated:2013-03-02
Summary: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.
CVSS v3 Severity:7.5 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
CVSS v2 Severity:7.1 High (CVSS v2 Vector: AV:N/AC:M/Au:N/C:N/I:N/A:C)
5.3 Medium (Temporal CVSS v2 Vector: AV:N/AC:M/Au:N/C:N/I:N/A:C/E:U/RL:OF/RC:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Complete
7.1 High (CCN CVSS v2 Vector: AV:N/AC:M/Au:N/C:N/I:N/A:C)
5.3 Medium (CCN Temporal CVSS v2 Vector: AV:N/AC:M/Au:N/C:N/I:N/A:C/E:U/RL:OF/RC:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Medium
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Complete
Vulnerability Type:CWE-399
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2012-4643

Source: OSVDB
Type: UNKNOWN
86145

Source: CCN
Type: SA50871
Cisco ASA Products Multiple Vulnerabilities

Source: CCN
Type: cisco-sa-20121010-asa
Multiple Vulnerabilities in Cisco ASA 5500 Series Adaptive Security Appliances and Cisco Catalyst 6500 Series ASA Services Module

Source: CISCO
Type: Vendor Advisory
20121010 Multiple Vulnerabilities in Cisco ASA 5500 Series Adaptive Security Appliances and Cisco Catalyst 6500 Series ASA Services Module

Source: CCN
Type: OSVDB ID: 86145
Cisco Multiple Product DHCP Memory Allocation DHCP Request Parsing Remote DoS

Source: BID
Type: UNKNOWN
55861

Source: CCN
Type: BID-55861
Cisco ASA 5500 Series and Cisco Catalyst 6500 Series DHCP Denial of Service Vulnerability

Source: XF
Type: UNKNOWN
Cisco-asasm-dhcp-dos(79176)

Vulnerable Configuration:Configuration 1:
  • cpe:/a:cisco:adaptive_security_appliance_software:7.0:*:*:*:*:*:*:*
  • OR cpe:/a:cisco:adaptive_security_appliance_software:7.0(0):*:*:*:*:*:*:*
  • OR cpe:/a:cisco:adaptive_security_appliance_software:7.0(1):*:*:*:*:*:*:*
  • OR cpe:/a:cisco:adaptive_security_appliance_software:7.0(2):*:*:*:*:*:*:*
  • OR cpe:/a:cisco:adaptive_security_appliance_software:7.0(4):*:*:*:*:*:*:*
  • OR cpe:/a:cisco:adaptive_security_appliance_software:7.0(5):*:*:*:*:*:*:*
  • OR cpe:/a:cisco:adaptive_security_appliance_software:7.0(5.2):*:*:*:*:*:*:*
  • OR cpe:/a:cisco:adaptive_security_appliance_software:7.1:*:*:*:*:*:*:*
  • OR cpe:/a:cisco:adaptive_security_appliance_software:7.1(2):*:*:*:*:*:*:*
  • OR cpe:/a:cisco:adaptive_security_appliance_software:7.1(2.5):*:*:*:*:*:*:*
  • OR cpe:/a:cisco:adaptive_security_appliance_software:7.1(2.27):*:*:*:*:*:*:*
  • OR cpe:/a:cisco:adaptive_security_appliance_software:7.1(2.48):*:*:*:*:*:*:*
  • OR cpe:/a:cisco:adaptive_security_appliance_software:7.1(2.49):*:*:*:*:*:*:*
  • OR cpe:/a:cisco:adaptive_security_appliance_software:7.1(5):*:*:*:*:*:*:*
  • OR cpe:/a:cisco:adaptive_security_appliance_software:7.2:*:*:*:*:*:*:*
  • OR cpe:/a:cisco:adaptive_security_appliance_software:7.2(1):*:*:*:*:*:*:*
  • OR cpe:/a:cisco:adaptive_security_appliance_software:7.2(1.22):*:*:*:*:*:*:*
  • OR cpe:/a:cisco:adaptive_security_appliance_software:7.2(2):*:*:*:*:*:*:*
  • OR cpe:/a:cisco:adaptive_security_appliance_software:7.2(2.5):*:*:*:*:*:*:*
  • OR cpe:/a:cisco:adaptive_security_appliance_software:7.2(2.7):*:*:*:*:*:*:*
  • OR cpe:/a:cisco:adaptive_security_appliance_software:7.2(2.8):*:*:*:*:*:*:*
  • OR cpe:/a:cisco:adaptive_security_appliance_software:7.2(2.10):*:*:*:*:*:*:*
  • OR cpe:/a:cisco:adaptive_security_appliance_software:7.2(2.14):*:*:*:*:*:*:*
  • OR cpe:/a:cisco:adaptive_security_appliance_software:7.2(2.15):*:*:*:*:*:*:*
  • OR cpe:/a:cisco:adaptive_security_appliance_software:7.2(2.16):*:*:*:*:*:*:*
  • OR cpe:/a:cisco:adaptive_security_appliance_software:7.2(2.17):*:*:*:*:*:*:*
  • OR cpe:/a:cisco:adaptive_security_appliance_software:7.2(2.18):*:*:*:*:*:*:*
  • OR cpe:/a:cisco:adaptive_security_appliance_software:7.2(2.19):*:*:*:*:*:*:*
  • OR cpe:/a:cisco:adaptive_security_appliance_software:7.2(2.48):*:*:*:*:*:*:*
  • OR cpe:/a:cisco:adaptive_security_appliance_software:7.2(3):*:*:*:*:*:*:*
  • OR cpe:/a:cisco:adaptive_security_appliance_software:7.2(4):*:*:*:*:*:*:*
  • OR cpe:/a:cisco:adaptive_security_appliance_software:7.2(5):*:*:*:*:*:*:*
  • OR cpe:/a:cisco:adaptive_security_appliance_software:8.0:*:*:*:*:*:*:*
  • OR cpe:/a:cisco:adaptive_security_appliance_software:8.0(2):*:*:*:*:*:*:*
  • OR cpe:/a:cisco:adaptive_security_appliance_software:8.0(3):*:*:*:*:*:*:*
  • OR cpe:/a:cisco:adaptive_security_appliance_software:8.0(4):*:*:*:*:*:*:*
  • OR cpe:/a:cisco:adaptive_security_appliance_software:8.0(5):*:*:*:*:*:*:*
  • OR cpe:/a:cisco:adaptive_security_appliance_software:8.1:*:*:*:*:*:*:*
  • OR cpe:/a:cisco:adaptive_security_appliance_software:8.2:*:*:*:*:*:*:*
  • OR cpe:/a:cisco:adaptive_security_appliance_software:8.2(1):*:*:*:*:*:*:*
  • OR cpe:/a:cisco:adaptive_security_appliance_software:8.2(2):*:*:*:*:*:*:*
  • OR cpe:/a:cisco:adaptive_security_appliance_software:8.2(3):*:*:*:*:*:*:*
  • OR cpe:/a:cisco:adaptive_security_appliance_software:8.2(3.9):*:*:*:*:*:*:*
  • OR cpe:/a:cisco:adaptive_security_appliance_software:8.2(4):*:*:*:*:*:*:*
  • OR cpe:/a:cisco:adaptive_security_appliance_software:8.2(4.1):*:*:*:*:*:*:*
  • OR cpe:/a:cisco:adaptive_security_appliance_software:8.2(4.4):*:*:*:*:*:*:*
  • OR cpe:/a:cisco:adaptive_security_appliance_software:8.2(5):*:*:*:*:*:*:*
  • OR cpe:/a:cisco:adaptive_security_appliance_software:8.3(1):*:*:*:*:*:*:*
  • OR cpe:/a:cisco:adaptive_security_appliance_software:8.3(2):*:*:*:*:*:*:*
  • OR cpe:/a:cisco:adaptive_security_appliance_software:8.4:*:*:*:*:*:*:*
  • OR cpe:/a:cisco:adaptive_security_appliance_software:8.4(1):*:*:*:*:*:*:*
  • OR cpe:/a:cisco:adaptive_security_appliance_software:8.4(1.11):*:*:*:*:*:*:*
  • OR cpe:/a:cisco:adaptive_security_appliance_software:8.4(2):*:*:*:*:*:*:*
  • OR cpe:/a:cisco:adaptive_security_appliance_software:8.4(2.11):*:*:*:*:*:*:*
  • OR cpe:/a:cisco:adaptive_security_appliance_software:8.5:*:*:*:*:*:*:*
  • OR cpe:/a:cisco:adaptive_security_appliance_software:8.5(1):*:*:*:*:*:*:*
  • OR cpe:/a:cisco:adaptive_security_appliance_software:8.5(1.4):*:*:*:*:*:*:*
  • OR cpe:/a:cisco:adaptive_security_appliance_software:8.6:*:*:*:*:*:*:*
  • OR cpe:/a:cisco:adaptive_security_appliance_software:8.6(1):*:*:*:*:*:*:*
  • AND
  • cpe:/h:cisco:5500_series_adaptive_security_appliance:*:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:catalyst_6500:*:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:catalyst_6503-e:-:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:catalyst_6504-e:-:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:catalyst_6506-e:-:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:catalyst_6509-e:-:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:catalyst_6509-neb-a:-:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:catalyst_6509-v-e:-:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:catalyst_6513:-:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:catalyst_6513-e:-:*:*:*:*:*:*:*

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