CVE-2015-6291

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Summary

CVECVE-2015-6291
StatePUBLISHED
Assignercisco
Source PriorityCVE Program / NVD first with legacy fallback
Published2015-11-06 03:59:00 UTC
Updated2026-05-06 22:30:45 UTC
DescriptionCisco 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.

Risk And Classification

Primary CVSS: v2.0 7.8 from [email protected]

AV:N/AC:L/Au:N/C:N/I:N/A:C

Problem Types: CWE-20 | n/a

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Complete

AV:N/AC:L/Au:N/C:N/I:N/A:C

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Cisco Email Security Appliance 7.7.0-000 All All All
Application Cisco Email Security Appliance 7.7.1-000 All All All
Application Cisco Email Security Appliance 8.0_base All All All
Application Cisco Email Security Appliance 8.5.6-052 All All All
Application Cisco Email Security Appliance 8.5.6-073 All All All
Application Cisco Email Security Appliance 8.5.6-074 All All All
Application Cisco Email Security Appliance 8.5.6-106 All All All
Application Cisco Email Security Appliance 8.5.6-113 All All All
Application Cisco Email Security Appliance 8.5.7-042 All All All
Application Cisco Email Security Appliance 8.5_base All All All
Application Cisco Email Security Appliance 9.0.0 All All All
Application Cisco Email Security Appliance 9.0.0-212 All All All
Application Cisco Email Security Appliance 9.0.0-461 All All All
Application Cisco Email Security Appliance 9.0.5-000 All All All
Application Cisco Email Security Appliance 9.1.0-032 All All All
Application Cisco Email Security Appliance 9.6.0-042 All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
Cisco Email Security Appliance Email Scanner Bug Lets Remote Users Consume Excessive Memory Resources - SecurityTracker af854a3a-2127-422b-91ae-364da2661108 www.securitytracker.com
Cisco Email Security Appliance Email Scanner Denial of Service Vulnerability af854a3a-2127-422b-91ae-364da2661108 tools.cisco.com Vendor Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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