CVE-2005-1020

Published: May 2, 2005Modified: Apr 16, 2026

7.1

Vector

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

Exploitability: 8.6 / Impact: 6.9

Source: NVD

Description

Secure Shell (SSH) 2 in Cisco IOS 12.0 through 12.3 allows remote attackers to cause a denial of service (device reload) (1) via a username that contains a domain name when using a TACACS+ server to authenticate, (2) when a new SSH session is in the login phase and a currently logged in user issues a send command, or (3) when IOS is logging messages and an SSH session is terminated while the server is sending data.

Affected (337)

Products: Cisco: Ios

Cisco

1 product

Ios

Configuration A

337 vulnerable

Vulnerable Software	Affected Versions
Cisco Ios	Version 12.0
Cisco Ios	Version 12.0(23)s4
Cisco Ios	Version 12.0(23)s5
Cisco Ios	Version 12.0(24.2)s
Cisco Ios	Version 12.0(24)s1
Cisco Ios	Version 12.0(24)s4
Cisco Ios	Version 12.0(24)s5
Cisco Ios	Version 12.0(26)s1
Cisco Ios	Version 12.0(27)s
Cisco Ios	Version 12.0(27)sv1
Cisco Ios	Version 12.0(27)sv
Cisco Ios	Version 12.0da
Cisco Ios	Version 12.0db
Cisco Ios	Version 12.0dc
Cisco Ios	Version 12.0s
Cisco Ios	Version 12.0sc
Cisco Ios	Version 12.0sl
Cisco Ios	Version 12.0sp
Cisco Ios	Version 12.0st
Cisco Ios	Version 12.0sv
Cisco Ios	Version 12.0sx
Cisco Ios	Version 12.0sy
Cisco Ios	Version 12.0sz
Cisco Ios	Version 12.0t
Cisco Ios	Version 12.0w5
Cisco Ios	Version 12.0wc
Cisco Ios	Version 12.0wt
Cisco Ios	Version 12.0wx
Cisco Ios	Version 12.0xa
Cisco Ios	Version 12.0xb
Cisco Ios	Version 12.0xc
Cisco Ios	Version 12.0xd
Cisco Ios	Version 12.0xe
Cisco Ios	Version 12.0xf
Cisco Ios	Version 12.0xg
Cisco Ios	Version 12.0xh
Cisco Ios	Version 12.0xi
Cisco Ios	Version 12.0xj
Cisco Ios	Version 12.0xk
Cisco Ios	Version 12.0xl
Cisco Ios	Version 12.0xm
Cisco Ios	Version 12.0xn
Cisco Ios	Version 12.0xp
Cisco Ios	Version 12.0xq
Cisco Ios	Version 12.0xr
Cisco Ios	Version 12.0xs
Cisco Ios	Version 12.0xt
Cisco Ios	Version 12.0xu
Cisco Ios	Version 12.0xv
Cisco Ios	Version 12.0xw
Cisco Ios	Version 12.1
Cisco Ios	Version 12.1(11)e
Cisco Ios	Version 12.1(11b)e12
Cisco Ios	Version 12.1(11b)e14
Cisco Ios	Version 12.1(11b)e
Cisco Ios	Version 12.1(13)e9
Cisco Ios	Version 12.1(19)e1
Cisco Ios	Version 12.1(20)e1
Cisco Ios	Version 12.1(20)e2
Cisco Ios	Version 12.1(20)e
Cisco Ios	Version 12.1(20)ea1
Cisco Ios	Version 12.1(20)ec1
Cisco Ios	Version 12.1(20)ec
Cisco Ios	Version 12.1(20)eo
Cisco Ios	Version 12.1(20)ew1
Cisco Ios	Version 12.1(20)ew
Cisco Ios	Version 12.1aa
Cisco Ios	Version 12.1ax
Cisco Ios	Version 12.1ay
Cisco Ios	Version 12.1az
Cisco Ios	Version 12.1cx
Cisco Ios	Version 12.1da
Cisco Ios	Version 12.1db
Cisco Ios	Version 12.1dc
Cisco Ios	Version 12.1e
Cisco Ios	Version 12.1ea
Cisco Ios	Version 12.1eb
Cisco Ios	Version 12.1ec
Cisco Ios	Version 12.1eo
Cisco Ios	Version 12.1eu
Cisco Ios	Version 12.1ev
Cisco Ios	Version 12.1ew
Cisco Ios	Version 12.1ex
Cisco Ios	Version 12.1ey
Cisco Ios	Version 12.1m
Cisco Ios	Version 12.1t
Cisco Ios	Version 12.1xa
Cisco Ios	Version 12.1xb
Cisco Ios	Version 12.1xc
Cisco Ios	Version 12.1xd
Cisco Ios	Version 12.1xe
Cisco Ios	Version 12.1xf
Cisco Ios	Version 12.1xg
Cisco Ios	Version 12.1xh
Cisco Ios	Version 12.1xi
Cisco Ios	Version 12.1xj
Cisco Ios	Version 12.1xk
Cisco Ios	Version 12.1xl
Cisco Ios	Version 12.1xm
Cisco Ios	Version 12.1xp
Cisco Ios	Version 12.1xq
Cisco Ios	Version 12.1xr
Cisco Ios	Version 12.1xs
Cisco Ios	Version 12.1xt
Cisco Ios	Version 12.1xu
Cisco Ios	Version 12.1xv
Cisco Ios	Version 12.1xw
Cisco Ios	Version 12.1xx
Cisco Ios	Version 12.1xy
Cisco Ios	Version 12.1xz
Cisco Ios	Version 12.1ya
Cisco Ios	Version 12.1yb
Cisco Ios	Version 12.1yc
Cisco Ios	Version 12.1yd
Cisco Ios	Version 12.1ye
Cisco Ios	Version 12.1yf
Cisco Ios	Version 12.1yh
Cisco Ios	Version 12.1yi
Cisco Ios	Version 12.1yj
Cisco Ios	Version 12.2
Cisco Ios	Version 12.2(11)ja1
Cisco Ios	Version 12.2(11)ja
Cisco Ios	Version 12.2(11)t
Cisco Ios	Version 12.2(12g)
Cisco Ios	Version 12.2(12h)
Cisco Ios	Version 12.2(14.5)
Cisco Ios	Version 12.2(14.5)t
Cisco Ios	Version 12.2(14)sy1
Cisco Ios	Version 12.2(14)sy
Cisco Ios	Version 12.2(14)sz
Cisco Ios	Version 12.2(14)za2
Cisco Ios	Version 12.2(14)za
Cisco Ios	Version 12.2(15.1)s
Cisco Ios	Version 12.2(15)zn
Cisco Ios	Version 12.2(16.1)b
Cisco Ios	Version 12.2(16)b
Cisco Ios	Version 12.2(17a)sxa
Cisco Ios	Version 12.2(18)ew
Cisco Ios	Version 12.2(18)ewa
Cisco Ios	Version 12.2(18)s
Cisco Ios	Version 12.2(18)se
Cisco Ios	Version 12.2(18)sv
Cisco Ios	Version 12.2(18)sw
Cisco Ios	Version 12.2(1)xa
Cisco Ios	Version 12.2(1)xd1
Cisco Ios	Version 12.2(1)xd3
Cisco Ios	Version 12.2(1)xd4
Cisco Ios	Version 12.2(1)xd
Cisco Ios	Version 12.2(1)xe2
Cisco Ios	Version 12.2(1)xe3
Cisco Ios	Version 12.2(1)xe
Cisco Ios	Version 12.2(1)xh
Cisco Ios	Version 12.2(1)xq
Cisco Ios	Version 12.2(1)xs1
Cisco Ios	Version 12.2(1)xs
Cisco Ios	Version 12.2(20)ew
Cisco Ios	Version 12.2(20)s1
Cisco Ios	Version 12.2(20)s
Cisco Ios	Version 12.2(21)
Cisco Ios	Version 12.2(21a)
Cisco Ios	Version 12.2(23)
Cisco Ios	Version 12.2(2)t4
Cisco Ios	Version 12.2(2)xa1
Cisco Ios	Version 12.2(2)xa5
Cisco Ios	Version 12.2(2)xa
Cisco Ios	Version 12.2(2)xb3
Cisco Ios	Version 12.2(2)xb4
Cisco Ios	Version 12.2(2)xb
Cisco Ios	Version 12.2(2)xf
Cisco Ios	Version 12.2(2)xg
Cisco Ios	Version 12.2(2)xh2
Cisco Ios	Version 12.2(2)xh3
Cisco Ios	Version 12.2(2)xh
Cisco Ios	Version 12.2(2)xi1
Cisco Ios	Version 12.2(2)xi2
Cisco Ios	Version 12.2(2)xi
Cisco Ios	Version 12.2(2)xj1
Cisco Ios	Version 12.2(2)xj
Cisco Ios	Version 12.2(2)xk2
Cisco Ios	Version 12.2(2)xk
Cisco Ios	Version 12.2(2)xn
Cisco Ios	Version 12.2(2)xt3
Cisco Ios	Version 12.2(2)xt
Cisco Ios	Version 12.2(2)xu2
Cisco Ios	Version 12.2(2)xu
Cisco Ios	Version 12.2(4)ja1
Cisco Ios	Version 12.2(4)ja
Cisco Ios	Version 12.2(8)ja
Cisco Ios	Version 12.2b
Cisco Ios	Version 12.2bc
Cisco Ios	Version 12.2bw
Cisco Ios	Version 12.2bx
Cisco Ios	Version 12.2by
Cisco Ios	Version 12.2bz
Cisco Ios	Version 12.2cx
Cisco Ios	Version 12.2cy
Cisco Ios	Version 12.2cz
Cisco Ios	Version 12.2da
Cisco Ios	Version 12.2dd
Cisco Ios	Version 12.2dx
Cisco Ios	Version 12.2ew
Cisco Ios	Version 12.2ewa
Cisco Ios	Version 12.2ja
Cisco Ios	Version 12.2jk
Cisco Ios	Version 12.2mb
Cisco Ios	Version 12.2mc
Cisco Ios	Version 12.2mx
Cisco Ios	Version 12.2s
Cisco Ios	Version 12.2se
Cisco Ios	Version 12.2su
Cisco Ios	Version 12.2sv
Cisco Ios	Version 12.2sw
Cisco Ios	Version 12.2sx
Cisco Ios	Version 12.2sxa
Cisco Ios	Version 12.2sxb
Cisco Ios	Version 12.2sxd
Cisco Ios	Version 12.2sy
Cisco Ios	Version 12.2sz
Cisco Ios	Version 12.2t
Cisco Ios	Version 12.2x
Cisco Ios	Version 12.2xa
Cisco Ios	Version 12.2xb
Cisco Ios	Version 12.2xc
Cisco Ios	Version 12.2xd
Cisco Ios	Version 12.2xe
Cisco Ios	Version 12.2xf
Cisco Ios	Version 12.2xg
Cisco Ios	Version 12.2xh
Cisco Ios	Version 12.2xi
Cisco Ios	Version 12.2xj
Cisco Ios	Version 12.2xk
Cisco Ios	Version 12.2xl
Cisco Ios	Version 12.2xm
Cisco Ios	Version 12.2xn
Cisco Ios	Version 12.2xq
Cisco Ios	Version 12.2xr
Cisco Ios	Version 12.2xs
Cisco Ios	Version 12.2xt
Cisco Ios	Version 12.2xu
Cisco Ios	Version 12.2xw
Cisco Ios	Version 12.2xz
Cisco Ios	Version 12.2ya
Cisco Ios	Version 12.2yb
Cisco Ios	Version 12.2yc
Cisco Ios	Version 12.2yd
Cisco Ios	Version 12.2ye
Cisco Ios	Version 12.2yf
Cisco Ios	Version 12.2yg
Cisco Ios	Version 12.2yh
Cisco Ios	Version 12.2yj
Cisco Ios	Version 12.2yk
Cisco Ios	Version 12.2yl
Cisco Ios	Version 12.2ym
Cisco Ios	Version 12.2yn
Cisco Ios	Version 12.2yo
Cisco Ios	Version 12.2yp
Cisco Ios	Version 12.2yq
Cisco Ios	Version 12.2yr
Cisco Ios	Version 12.2ys
Cisco Ios	Version 12.2yt
Cisco Ios	Version 12.2yu
Cisco Ios	Version 12.2yv
Cisco Ios	Version 12.2yw
Cisco Ios	Version 12.2yx
Cisco Ios	Version 12.2yy
Cisco Ios	Version 12.2yz
Cisco Ios	Version 12.2za
Cisco Ios	Version 12.2zb
Cisco Ios	Version 12.2zc
Cisco Ios	Version 12.2zd
Cisco Ios	Version 12.2ze
Cisco Ios	Version 12.2zf
Cisco Ios	Version 12.2zg
Cisco Ios	Version 12.2zh
Cisco Ios	Version 12.2zi
Cisco Ios	Version 12.2zj
Cisco Ios	Version 12.2zk
Cisco Ios	Version 12.2zl
Cisco Ios	Version 12.2zm
Cisco Ios	Version 12.2zn
Cisco Ios	Version 12.2zo
Cisco Ios	Version 12.2zp
Cisco Ios	Version 12.2zq
Cisco Ios	Version 12.3
Cisco Ios	Version 12.3(2)t3
Cisco Ios	Version 12.3(2)xc1
Cisco Ios	Version 12.3(2)xc2
Cisco Ios	Version 12.3(4)t1
Cisco Ios	Version 12.3(4)t2
Cisco Ios	Version 12.3(4)t3
Cisco Ios	Version 12.3(4)t
Cisco Ios	Version 12.3(4)xd1
Cisco Ios	Version 12.3(4)xd
Cisco Ios	Version 12.3(5)
Cisco Ios	Version 12.3(5a)
Cisco Ios	Version 12.3(5a)b
Cisco Ios	Version 12.3(5b)
Cisco Ios	Version 12.3(6)
Cisco Ios	Version 12.3b
Cisco Ios	Version 12.3bc
Cisco Ios	Version 12.3bw
Cisco Ios	Version 12.3j
Cisco Ios	Version 12.3ja
Cisco Ios	Version 12.3t
Cisco Ios	Version 12.3xa
Cisco Ios	Version 12.3xb
Cisco Ios	Version 12.3xc
Cisco Ios	Version 12.3xd
Cisco Ios	Version 12.3xe
Cisco Ios	Version 12.3xf
Cisco Ios	Version 12.3xg
Cisco Ios	Version 12.3xh
Cisco Ios	Version 12.3xi
Cisco Ios	Version 12.3xj
Cisco Ios	Version 12.3xk
Cisco Ios	Version 12.3xl
Cisco Ios	Version 12.3xm
Cisco Ios	Version 12.3xn
Cisco Ios	Version 12.3xq
Cisco Ios	Version 12.3xr
Cisco Ios	Version 12.3xs
Cisco Ios	Version 12.3xt
Cisco Ios	Version 12.3xu
Cisco Ios	Version 12.3xv
Cisco Ios	Version 12.3xw
Cisco Ios	Version 12.3xx
Cisco Ios	Version 12.3xy
Cisco Ios	Version 12.3xz
Cisco Ios	Version 12.3ya
Cisco Ios	Version 12.3yc
Cisco Ios	Version 12.3yd
Cisco Ios	Version 12.3ye
Cisco Ios	Version 12.3yf
Cisco Ios	Version 12.3yg
Cisco Ios	Version 12.3yh
Cisco Ios	Version 12.3yj
Cisco Ios	Version 12.3yl