Vulnerability Name:

CVE-2012-3918 (CCN-110765)

Assigned:2012-07-10
Published:2012-07-10
Updated:2014-04-23
Summary:Cisco IOS before 15.3(1)T on Cisco 2900 devices, when a VWIC2-2MFT-T1/E1 card is configured for TDM/HDLC mode, allows remote attackers to cause a denial of service (serial-interface outage) via certain Frame Relay traffic, aka Bug ID CSCub13317.
CVSS v3 Severity:5.3 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)
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): Low
CVSS v2 Severity:4.3 Medium (CVSS v2 Vector: AV:N/AC:M/Au:N/C:N/I:N/A:P)
3.2 Low (Temporal CVSS v2 Vector: AV:N/AC:M/Au:N/C:N/I:N/A:P/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): Partial
5.0 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P)
3.7 Low (CCN Temporal CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P/E:U/RL:OF/RC:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
Vulnerability Type:CWE-noinfo
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2012-3918

Source: CCN
Type: Cisco Web site
Release Notes for Cisco IOS Release 15.3M&T

Source: CONFIRM
Type: UNKNOWN
http://www.cisco.com/c/en/us/td/docs/ios/15_3m_and_t/release/notes/15_3m_and_t.pdf

Source: XF
Type: UNKNOWN
ciscoios-cve20123918-dos(110765)

Vulnerable Configuration:Configuration 1:
  • cpe:/o:cisco:ios:15.3:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios:15.3(2)s:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios:15.3(3)m:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios:15.3(3)m1:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios:*:*:*:*:*:*:*:* (Version <= 15.3(3)m2)
  • OR cpe:/o:cisco:ios:15.3(3)s:*:*:*:*:*:*:*
  • OR cpe:/o:cisco:ios:15.3s:*:*:*:*:*:*:*
  • AND
  • cpe:/h:cisco:catalyst_2900:*:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:catalyst_2900:lre_xl:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:catalyst_2900:xl:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:catalyst_2900_vlan:*:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:catalyst_2900xl:*:*:*:*:*:*:*:*

  • Configuration CCN 1:
  • cpe:/o:cisco:ios:15.3:*:*:*:*:*:*:*

  • * Denotes that component is vulnerable
    BACK
    cisco ios 15.3
    cisco ios 15.3(2)s
    cisco ios 15.3(3)m
    cisco ios 15.3(3)m1
    cisco ios *
    cisco ios 15.3(3)s
    cisco ios 15.3s
    cisco catalyst 2900 *
    cisco catalyst 2900 lre_xl
    cisco catalyst 2900 xl
    cisco catalyst 2900 vlan *
    cisco catalyst 2900xl *
    cisco ios 15.3