Description
Memory leak in the NAT implementation in Cisco IOS 12.1 through 12.4 and 15.0 through 15.1, and IOS XE 3.1.xSG, allows remote attackers to cause a denial of service (memory consumption or device reload) by sending crafted SIP packets to UDP port 5060, aka Bug ID CSCtj04672.
CVSS breakdown
CVSS 3.0
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Affected products
- Cisco / IOS15.1xb – 15.1xb
- Cisco / IOS15.1s – 15.1s
- Cisco / IOS15.1t – 15.1t
- Cisco / IOS12.1 – 12.1
- Cisco / IOS12.1e – 12.1e
- Cisco / IOS12.2 – 12.2
- Cisco / IOS12.2b – 12.2b
- Cisco / IOS12.2bc – 12.2bc
- Cisco / IOS12.2bx – 12.2bx
- Cisco / IOS12.2cx – 12.2cx
- Cisco / IOS12.2cz – 12.2cz
- Cisco / IOS12.2ew – 12.2ew
- Cisco / IOS12.2ewa – 12.2ewa
- Cisco / IOS12.2ex – 12.2ex
- Cisco / IOS12.2ey – 12.2ey
- Cisco / IOS12.2ez – 12.2ez
- Cisco / IOS12.2fx – 12.2fx
- Cisco / IOS12.2fy – 12.2fy
- Cisco / IOS12.2fz – 12.2fz
- Cisco / IOS12.2ira – 12.2ira
- Cisco / IOS12.2irb – 12.2irb
- Cisco / IOS12.2irc – 12.2irc
- Cisco / IOS12.2ird – 12.2ird
- Cisco / IOS12.2ire – 12.2ire
- Cisco / IOS12.2irf – 12.2irf
- Cisco / IOS12.2ixa – 12.2ixa
- Cisco / IOS12.2ixb – 12.2ixb
- Cisco / IOS12.2ixc – 12.2ixc
- Cisco / IOS12.2ixd – 12.2ixd
- Cisco / IOS12.2ixe – 12.2ixe
- Cisco / IOS12.2ixf – 12.2ixf
- Cisco / IOS12.2ixg – 12.2ixg
- Cisco / IOS12.2ixh – 12.2ixh
- Cisco / IOS12.2mc – 12.2mc
- Cisco / IOS12.2mra – 12.2mra
- Cisco / IOS12.2mrb – 12.2mrb
- Cisco / IOS12.2s – 12.2s
- Cisco / IOS12.2sb – 12.2sb
- Cisco / IOS12.2sbc – 12.2sbc
- Cisco / IOS12.2sca – 12.2sca
- Cisco / IOS12.2scb – 12.2scb
- Cisco / IOS12.2scc – 12.2scc
- Cisco / IOS12.2scd – 12.2scd
- Cisco / IOS12.2sce – 12.2sce
- Cisco / IOS12.2se – 12.2se
- Cisco / IOS12.2sea – 12.2sea
- Cisco / IOS12.2seb – 12.2seb
- Cisco / IOS12.2sec – 12.2sec
- Cisco / IOS12.2sed – 12.2sed
- Cisco / IOS12.2see – 12.2see
- Cisco / IOS12.2sef – 12.2sef
- Cisco / IOS12.2seg – 12.2seg
- Cisco / IOS12.2sg – 12.2sg
- Cisco / IOS12.2sga – 12.2sga
- Cisco / IOS12.2sm – 12.2sm
- Cisco / IOS12.2sq – 12.2sq
- Cisco / IOS12.2sra – 12.2sra
- Cisco / IOS12.2srb – 12.2srb
- Cisco / IOS12.2src – 12.2src
- Cisco / IOS12.2srd – 12.2srd
- Cisco / IOS12.2sre – 12.2sre
- Cisco / IOS12.2su – 12.2su
- Cisco / IOS12.2sv – 12.2sv
- Cisco / IOS12.2sw – 12.2sw
- Cisco / IOS12.2sx – 12.2sx
- Cisco / IOS12.2sxa – 12.2sxa
- Cisco / IOS12.2sxb – 12.2sxb
- Cisco / IOS12.2sxd – 12.2sxd
- Cisco / IOS12.2sxe – 12.2sxe
- Cisco / IOS12.2sxf – 12.2sxf
- Cisco / IOS12.2sxh – 12.2sxh
- Cisco / IOS12.2sxi – 12.2sxi
- Cisco / IOS12.2sxj – 12.2sxj
- Cisco / IOS12.2sy – 12.2sy
- Cisco / IOS12.2sz – 12.2sz
- Cisco / IOS12.2t – 12.2t
- Cisco / IOS12.2tpc – 12.2tpc
- Cisco / IOS12.2xb – 12.2xb
- Cisco / IOS12.2xna – 12.2xna
- Cisco / IOS12.2xnb – 12.2xnb
- Cisco / IOS12.2xnc – 12.2xnc
- Cisco / IOS12.2xne – 12.2xne
- Cisco / IOS12.2xnf – 12.2xnf
- Cisco / IOS12.2xo – 12.2xo
- Cisco / IOS12.2ya – 12.2ya
- Cisco / IOS12.2yf – 12.2yf
- Cisco / IOS12.2yg – 12.2yg
- Cisco / IOS12.2yh – 12.2yh
- Cisco / IOS12.2yj – 12.2yj
- Cisco / IOS12.2yl – 12.2yl
- Cisco / IOS12.2ym – 12.2ym
- Cisco / IOS12.2yn – 12.2yn
- Cisco / IOS12.2yq – 12.2yq
- Cisco / IOS12.2yr – 12.2yr
- Cisco / IOS12.2ys – 12.2ys
- Cisco / IOS12.2yt – 12.2yt
- Cisco / IOS12.2yu – 12.2yu
- Cisco / IOS12.2yv – 12.2yv
- Cisco / IOS12.2yw – 12.2yw
- Cisco / IOS12.2yx – 12.2yx
- Cisco / IOS12.2yy – 12.2yy
- Cisco / IOS12.2yz – 12.2yz
- Cisco / IOS12.2za – 12.2za
- Cisco / IOS12.2zb – 12.2zb
- Cisco / IOS12.2ze – 12.2ze
- Cisco / IOS12.2zf – 12.2zf
- Cisco / IOS12.2zh – 12.2zh
- Cisco / IOS12.2zl – 12.2zl
- Cisco / IOS12.2zu – 12.2zu
- Cisco / IOS12.2zx – 12.2zx
- Cisco / IOS12.2zy – 12.2zy
- Cisco / IOS12.2zya – 12.2zya
- Cisco / IOS12.3 – 12.3
- Cisco / IOS12.3b – 12.3b
- Cisco / IOS12.3bc – 12.3bc
- Cisco / IOS12.3bw – 12.3bw
- Cisco / IOS12.3jk – 12.3jk
- Cisco / IOS12.3t – 12.3t
- Cisco / IOS12.3tpc – 12.3tpc
- Cisco / IOS12.3xa – 12.3xa
- Cisco / IOS12.3xb – 12.3xb
- Cisco / IOS12.3xc – 12.3xc
- Cisco / IOS12.3xd – 12.3xd
- Cisco / IOS12.3xe – 12.3xe
- Cisco / IOS12.3xf – 12.3xf
- Cisco / IOS12.3xg – 12.3xg
- Cisco / IOS12.3xi – 12.3xi
- Cisco / IOS12.3xj – 12.3xj
- Cisco / IOS12.3xk – 12.3xk
- Cisco / IOS12.3xl – 12.3xl
- Cisco / IOS12.3xq – 12.3xq
- Cisco / IOS12.3xr – 12.3xr
- Cisco / IOS12.3xs – 12.3xs
- Cisco / IOS12.3xu – 12.3xu
- Cisco / IOS12.3xw – 12.3xw
- Cisco / IOS12.3xx – 12.3xx
- Cisco / IOS12.3xz – 12.3xz
- Cisco / IOS12.3ya – 12.3ya
- Cisco / IOS12.3yj – 12.3yj
- Cisco / IOS12.3yq – 12.3yq
- Cisco / IOS12.3ys – 12.3ys
- Cisco / IOS12.3yt – 12.3yt
- Cisco / IOS12.3yu – 12.3yu
- Cisco / IOS12.3yx – 12.3yx
- Cisco / IOS12.3yz – 12.3yz
- Cisco / IOS12.3za – 12.3za
- Cisco / IOS12.4 – 12.4
- Cisco / IOS12.4gc – 12.4gc
- Cisco / IOS12.4jx – 12.4jx
- Cisco / IOS12.4md – 12.4md
- Cisco / IOS12.4mda – 12.4mda
- Cisco / IOS12.4mdb – 12.4mdb
- Cisco / IOS12.4mr – 12.4mr
- Cisco / IOS12.4mra – 12.4mra
- Cisco / IOS12.4mrb – 12.4mrb
- Cisco / IOS12.4t – 12.4t
- Cisco / IOS12.4xa – 12.4xa
- Cisco / IOS12.4xb – 12.4xb
- Cisco / IOS12.4xd – 12.4xd
- Cisco / IOS12.4xf – 12.4xf
- Cisco / IOS12.4xg – 12.4xg
- Cisco / IOS12.4xl – 12.4xl
- Cisco / IOS12.4xm – 12.4xm
- Cisco / IOS12.4xn – 12.4xn
- Cisco / IOS12.4xp – 12.4xp
- Cisco / IOS12.4xq – 12.4xq
- Cisco / IOS12.4xr – 12.4xr
- Cisco / IOS12.4xt – 12.4xt
- Cisco / IOS12.4xw – 12.4xw
- Cisco / IOS12.4xy – 12.4xy
- Cisco / IOS12.4xz – 12.4xz
- Cisco / IOS12.4ya – 12.4ya
- Cisco / IOS12.4yb – 12.4yb
- Cisco / IOS12.4yd – 12.4yd
- Cisco / IOS12.4ye – 12.4ye
- Cisco / IOS12.4yg – 12.4yg
- Cisco / IOS15.0m – 15.0m
- Cisco / IOS15.0mr – 15.0mr
- Cisco / IOS15.0mra – 15.0mra
- Cisco / IOS15.0s – 15.0s
- Cisco / IOS15.0sa – 15.0sa
- Cisco / IOS15.0sg – 15.0sg
- Cisco / IOS15.0xa – 15.0xa
- Cisco / IOS15.0xo – 15.0xo
- Cisco / IOS15.1ey – 15.1ey
- Cisco / IOS15.1gc – 15.1gc
- Cisco / IOS15.1m – 15.1m
- Cisco / ios_xe3.1.1sg – 3.1.1sg
- Cisco / ios_xe3.1.0sg – 3.1.0sg