CVE-2005-1021

Severity

71%

Complexity

86%

Confidentiality

115%

Memory 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.

Memory 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.

CVSS 2.0 Base Score 7.1. CVSS Attack Vector: network. CVSS Attack Complexity: medium. CVSS Vector: (AV:N/AC:M/Au:N/C:N/I:N/A:C).

Overview

Type

Cisco IOS

First reported 19 years ago

2005-05-02 04:00:00

Last updated 7 years ago

2017-10-11 01:30:00

Affected Software

Cisco IOS 12.0S

12.0s

Cisco IOS 12.0SX

12.0sx

Cisco IOS 12.1AX

12.1ax

Cisco IOS 12.1AZ

12.1az

Cisco IOS 12.1DB

12.1db

Cisco IOS 12.1DC

12.1dc

Cisco IOS 12.1E

12.1e

Cisco IOS 12.1EA

12.1ea

Cisco IOS 12.1EB

12.1eb

Cisco IOS 12.1EC

12.1ec

Cisco IOS 12.1EU

12.1eu

Cisco IOS 12.1EW

12.1ew

Cisco IOS 12.1EX

12.1ex

Cisco IOS 12.1T

12.1t

Cisco IOS 12.1XD

12.1xd

Cisco IOS 12.1XE

12.1xe

Cisco IOS 12.1XF

12.1xf

Cisco IOS 12.1XG

12.1xg

Cisco IOS 12.1XH

12.1xh

Cisco IOS 12.1XI

12.1xi

Cisco IOS 12.1XL

12.1xl

Cisco IOS 12.1XM

12.1xm

Cisco IOS 12.1XP

12.1xp

Cisco IOS 12.1XQ

12.1xq

Cisco IOS 12.1XR

12.1xr

Cisco IOS 12.1XT

12.1xt

Cisco IOS 12.1XU

12.1xu

Cisco IOS 12.1XV

12.1xv

Cisco IOS 12.1YA

12.1ya

Cisco IOS 12.1YB

12.1yb

Cisco IOS 12.1YC

12.1yc

Cisco IOS 12.1YD

12.1yd

Cisco IOS 12.1YE

12.1ye

Cisco IOS 12.1YF

12.1yf

Cisco IOS 12.1YH

12.1yh

Cisco IOS 12.1YI

12.1yi

Cisco IOS 12.2

12.2

Cisco IOS 12.2B

12.2b

Cisco IOS 12.2DD

12.2dd

Cisco IOS 12.2DX

12.2dx

Cisco IOS 12.2EU

12.2eu

Cisco IOS 12.2EW

12.2ew

Cisco IOS 12.2EWA

12.2ewa

Cisco IOS 12.2EX

12.2ex

Cisco IOS 12.2S

12.2s

Cisco IOS 12.2SE

12.2se

Cisco IOS 12.2 SEA

12.2sea

Cisco IOS 12.2SEB

12.2seb

Cisco IOS 12.2SU

12.2su

Cisco IOS 12.2SV

12.2sv

Cisco IOS 12.2SX

12.2sx

Cisco IOS 12.2SXA

12.2sxa

Cisco IOS 12.2SXB

12.2sxb

Cisco IOS 12.2SXD

12.2sxd

Cisco IOS 12.2SY

12.2sy

Cisco IOS 12.2SZ

12.2sz

Cisco IOS 12.2T

12.2t

Cisco IOS 12.2XA

12.2xa

Cisco IOS 12.2XC

12.2xc

Cisco IOS 12.2XF

12.2xf

Cisco IOS 12.2XN

12.2xn

Cisco IOS 12.2XS

12.2xs

Cisco IOS 12.2YE

12.2ye

Cisco IOS 12.2YK

12.2yk

Cisco IOS 12.2YO

12.2yo

Cisco IOS 12.2YX

12.2yx

Cisco IOS 12.2YZ

12.2yz

Cisco IOS 12.2ZA

12.2za

Cisco IOS 12.3T

12.3t

Cisco IOS 12.3XD

12.3xd

Cisco IOS 12.3XE

12.3xe

Cisco IOS 12.3XF

12.3xf

Cisco IOS 12.3XG

12.3xg

Cisco IOS 12.3XH

12.3xh

Cisco IOS 12.3XI

12.3xi

Cisco IOS 12.3XJ

12.3xj

Cisco IOS 12.3XK

12.3xk

Cisco IOS 12.3XL

12.3xl

Cisco IOS 12.3XM

12.3xm

Cisco IOS 12.3XQ

12.3xq

Cisco IOS 12.3XR

12.3xr

Cisco IOS 12.3XS

12.3xs

Cisco IOS 12.3XU

12.3xu

Cisco IOS 12.3XW

12.3xw

Cisco IOS 12.3XX

12.3xx

Cisco IOS 12.3XY

12.3xy

Cisco IOS 12.3YA

12.3ya

Cisco IOS 12.3YD

12.3yd

Cisco IOS 12.3YF

12.3yf

Cisco IOS 12.3YG

12.3yg

Cisco IOS 12.3YH

12.3yh

Cisco IOS 12.3YJ

12.3yj

Cisco IOS 12.3YK

12.3yk

References

14854

Patch, Vendor Advisory

20050406 Vulnerabilities in Cisco IOS Secure Shell Server

Vendor Advisory

15303

13042

1013655

cisco-ios-memory-leak-dos(19991)

oval:org.mitre.oval:def:5687

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