Vulnerability Name:

CVE-2015-6291 (CCN-107833)

Assigned:2015-11-04
Published:2015-11-04
Updated:2016-12-07
Summary:Cisco AsyncOS before 8.5.7-043, 9.x before 9.1.1-023, and 9.5.x and 9.6.x before 9.6.0-046 on Email Security Appliance (ESA) devices mishandles malformed fields during body-contains, attachment-contains, every-attachment-contains, attachment-binary-contains, dictionary-match, and attachment-dictionary-match filtering, which allows remote attackers to cause a denial of service (memory consumption) via a crafted attachment in an e-mail message, aka Bug ID CSCuv47151.
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)
6.5 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C)
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:7.8 High (CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Complete
7.8 High (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Complete
Vulnerability Type:CWE-20
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2015-6291

Source: CCN
Type: Cisco Security Advisory cisco-sa-20151104-esa2
Cisco Email Security Appliance Email Scanner Denial of Service Vulnerability

Source: CISCO
Type: Vendor Advisory
20151104 Cisco Email Security Appliance Email Scanner Denial of Service Vulnerability

Source: SECTRACK
Type: UNKNOWN
1034064

Source: XF
Type: UNKNOWN
cisco-esa-cve20156291-dos(107833)

Vulnerable Configuration:Configuration 1:
  • cpe:/a:cisco:email_security_appliance:7.7.0-000:*:*:*:*:*:*:*
  • OR cpe:/a:cisco:email_security_appliance:7.7.1-000:*:*:*:*:*:*:*
  • OR cpe:/a:cisco:email_security_appliance:8.0_base:*:*:*:*:*:*:*
  • OR cpe:/a:cisco:email_security_appliance:8.5.6-052:*:*:*:*:*:*:*
  • OR cpe:/a:cisco:email_security_appliance:8.5.6-073:*:*:*:*:*:*:*
  • OR cpe:/a:cisco:email_security_appliance:8.5.6-074:*:*:*:*:*:*:*
  • OR cpe:/a:cisco:email_security_appliance:8.5.6-106:*:*:*:*:*:*:*
  • OR cpe:/a:cisco:email_security_appliance:8.5.6-113:*:*:*:*:*:*:*
  • OR cpe:/a:cisco:email_security_appliance:8.5.7-042:*:*:*:*:*:*:*
  • OR cpe:/a:cisco:email_security_appliance:8.5_base:*:*:*:*:*:*:*
  • OR cpe:/a:cisco:email_security_appliance:9.0.0:*:*:*:*:*:*:*
  • OR cpe:/a:cisco:email_security_appliance:9.0.0-212:*:*:*:*:*:*:*
  • OR cpe:/a:cisco:email_security_appliance:9.0.0-461:*:*:*:*:*:*:*
  • OR cpe:/a:cisco:email_security_appliance:9.0.5-000:*:*:*:*:*:*:*
  • OR cpe:/a:cisco:email_security_appliance:9.1.0-032:*:*:*:*:*:*:*
  • OR cpe:/a:cisco:email_security_appliance:9.6.0-042:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    cisco email security appliance 7.7.0-000
    cisco email security appliance 7.7.1-000
    cisco email security appliance 8.0_base
    cisco email security appliance 8.5.6-052
    cisco email security appliance 8.5.6-073
    cisco email security appliance 8.5.6-074
    cisco email security appliance 8.5.6-106
    cisco email security appliance 8.5.6-113
    cisco email security appliance 8.5.7-042
    cisco email security appliance 8.5_base
    cisco email security appliance 9.0.0
    cisco email security appliance 9.0.0-212
    cisco email security appliance 9.0.0-461
    cisco email security appliance 9.0.5-000
    cisco email security appliance 9.1.0-032
    cisco email security appliance 9.6.0-042