CVE-2005-1021

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Summary

CVECVE-2005-1021
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2005-05-02 04:00:00 UTC
Updated2025-04-03 01:03:51 UTC
DescriptionMemory leak in Secure Shell (SSH) in Cisco IOS 12.0 through 12.3, when authenticating against a TACACS+ server, allows remote attackers to cause a denial of service (memory consumption) via an incorrect username or password.

Risk And Classification

Primary CVSS: v2.0 7.1 from [email protected]

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

Problem Types: CWE-399 | n/a

CVSS v2.0 Breakdown

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

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Cisco Ios 12.0s All All All
Operating System Cisco Ios 12.0sx All All All
Operating System Cisco Ios 12.1ax All All All
Operating System Cisco Ios 12.1az All All All
Operating System Cisco Ios 12.1db All All All
Operating System Cisco Ios 12.1dc All All All
Operating System Cisco Ios 12.1e All All All
Operating System Cisco Ios 12.1ea All All All
Operating System Cisco Ios 12.1eb All All All
Operating System Cisco Ios 12.1ec All All All
Operating System Cisco Ios 12.1eu All All All
Operating System Cisco Ios 12.1ew All All All
Operating System Cisco Ios 12.1ex All All All
Operating System Cisco Ios 12.1t All All All
Operating System Cisco Ios 12.1xd All All All
Operating System Cisco Ios 12.1xe All All All
Operating System Cisco Ios 12.1xf All All All
Operating System Cisco Ios 12.1xg All All All
Operating System Cisco Ios 12.1xh All All All
Operating System Cisco Ios 12.1xi All All All
Operating System Cisco Ios 12.1xl All All All
Operating System Cisco Ios 12.1xm All All All
Operating System Cisco Ios 12.1xp All All All
Operating System Cisco Ios 12.1xq All All All
Operating System Cisco Ios 12.1xr All All All
Operating System Cisco Ios 12.1xt All All All
Operating System Cisco Ios 12.1xu All All All
Operating System Cisco Ios 12.1xv All All All
Operating System Cisco Ios 12.1ya All All All
Operating System Cisco Ios 12.1yb All All All
Operating System Cisco Ios 12.1yc All All All
Operating System Cisco Ios 12.1yd All All All
Operating System Cisco Ios 12.1ye All All All
Operating System Cisco Ios 12.1yf All All All
Operating System Cisco Ios 12.1yh All All All
Operating System Cisco Ios 12.1yi All All All
Operating System Cisco Ios 12.2 All All All
Operating System Cisco Ios 12.2b All All All
Operating System Cisco Ios 12.2dd All All All
Operating System Cisco Ios 12.2dx All All All
Operating System Cisco Ios 12.2eu All All All
Operating System Cisco Ios 12.2ew All All All
Operating System Cisco Ios 12.2ewa All All All
Operating System Cisco Ios 12.2ex All All All
Operating System Cisco Ios 12.2s All All All
Operating System Cisco Ios 12.2se All All All
Operating System Cisco Ios 12.2sea All All All
Operating System Cisco Ios 12.2seb All All All
Operating System Cisco Ios 12.2su All All All
Operating System Cisco Ios 12.2sv All All All
Operating System Cisco Ios 12.2sx All All All
Operating System Cisco Ios 12.2sxa All All All
Operating System Cisco Ios 12.2sxb All All All
Operating System Cisco Ios 12.2sxd All All All
Operating System Cisco Ios 12.2sy All All All
Operating System Cisco Ios 12.2sz All All All
Operating System Cisco Ios 12.2t All All All
Operating System Cisco Ios 12.2xa All All All
Operating System Cisco Ios 12.2xc All All All
Operating System Cisco Ios 12.2xf All All All
Operating System Cisco Ios 12.2xn All All All
Operating System Cisco Ios 12.2xs All All All
Operating System Cisco Ios 12.2ye All All All
Operating System Cisco Ios 12.2yk All All All
Operating System Cisco Ios 12.2yo All All All
Operating System Cisco Ios 12.2yx All All All
Operating System Cisco Ios 12.2yz All All All
Operating System Cisco Ios 12.2za All All All
Operating System Cisco Ios 12.3t All All All
Operating System Cisco Ios 12.3xd All All All
Operating System Cisco Ios 12.3xe All All All
Operating System Cisco Ios 12.3xf All All All
Operating System Cisco Ios 12.3xg All All All
Operating System Cisco Ios 12.3xh All All All
Operating System Cisco Ios 12.3xi All All All
Operating System Cisco Ios 12.3xj All All All
Operating System Cisco Ios 12.3xk All All All
Operating System Cisco Ios 12.3xl All All All
Operating System Cisco Ios 12.3xm All All All
Operating System Cisco Ios 12.3xq All All All
Operating System Cisco Ios 12.3xr All All All
Operating System Cisco Ios 12.3xs All All All
Operating System Cisco Ios 12.3xu All All All
Operating System Cisco Ios 12.3xw All All All
Operating System Cisco Ios 12.3xx All All All
Operating System Cisco Ios 12.3xy All All All
Operating System Cisco Ios 12.3ya All All All
Operating System Cisco Ios 12.3yd All All All
Operating System Cisco Ios 12.3yf All All All
Operating System Cisco Ios 12.3yg All All All
Operating System Cisco Ios 12.3yh All All All
Operating System Cisco Ios 12.3yj All All All
Operating System Cisco Ios 12.3yk All All All

Vendor Declared Affected Products

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

References

ReferenceSourceLinkTags
SecurityTracker.com Archives - Cisco IOS SSH Server TACACS Bugs Let Remote Users Deny Service af854a3a-2127-422b-91ae-364da2661108 www.securitytracker.com Patch
Repository / Oval Repository af854a3a-2127-422b-91ae-364da2661108 oval.cisecurity.org
www.osvdb.org/15303 af854a3a-2127-422b-91ae-364da2661108 www.osvdb.org
Cisco - Networking, Cloud, and Cybersecurity Solutions af854a3a-2127-422b-91ae-364da2661108 www.cisco.com Vendor Advisory
Cisco IOS Secure Shell Server Memory Leak Denial Of Service Vulnerability af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com
Secunia - Advisories - Cisco IOS Secure Shell Server Denial of Service Vulnerabilities af854a3a-2127-422b-91ae-364da2661108 secunia.com Patch, Vendor Advisory
IBM X-Force Exchange af854a3a-2127-422b-91ae-364da2661108 exchange.xforce.ibmcloud.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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