First published: Thu Sep 27 2012(Updated: )
The Intrusion Prevention System (IPS) feature in Cisco IOS 12.3 through 12.4 and 15.0 through 15.2, in certain configurations of enabled categories and missing signatures, allows remote attackers to cause a denial of service (device reload) via DNS packets, aka Bug ID CSCtw55976.
Credit: ykramarz@cisco.com
Affected Software | Affected Version | How to fix |
---|---|---|
Cisco IOS | =12.3 | |
Cisco IOS | =12.3\(1a\) | |
Cisco IOS | =12.3\(2\)ja | |
Cisco IOS | =12.3\(2\)ja5 | |
Cisco IOS | =12.3\(2\)jk | |
Cisco IOS | =12.3\(2\)jk1 | |
Cisco IOS | =12.3\(2\)t3 | |
Cisco IOS | =12.3\(2\)t8 | |
Cisco IOS | =12.3\(2\)xa4 | |
Cisco IOS | =12.3\(2\)xa5 | |
Cisco IOS | =12.3\(2\)xc1 | |
Cisco IOS | =12.3\(2\)xc2 | |
Cisco IOS | =12.3\(2\)xc3 | |
Cisco IOS | =12.3\(2\)xc4 | |
Cisco IOS | =12.3\(2\)xe3 | |
Cisco IOS | =12.3\(2\)xe4 | |
Cisco IOS | =12.3\(3e\) | |
Cisco IOS | =12.3\(3h\) | |
Cisco IOS | =12.3\(3i\) | |
Cisco IOS | =12.3\(4\)eo1 | |
Cisco IOS | =12.3\(4\)ja | |
Cisco IOS | =12.3\(4\)ja1 | |
Cisco IOS | =12.3\(4\)t | |
Cisco IOS | =12.3\(4\)t1 | |
Cisco IOS | =12.3\(4\)t2 | |
Cisco IOS | =12.3\(4\)t3 | |
Cisco IOS | =12.3\(4\)t4 | |
Cisco IOS | =12.3\(4\)t8 | |
Cisco IOS | =12.3\(4\)tpc11a | |
Cisco IOS | =12.3\(4\)xd | |
Cisco IOS | =12.3\(4\)xd1 | |
Cisco IOS | =12.3\(4\)xd2 | |
Cisco IOS | =12.3\(4\)xe4 | |
Cisco IOS | =12.3\(4\)xg1 | |
Cisco IOS | =12.3\(4\)xg2 | |
Cisco IOS | =12.3\(4\)xg4 | |
Cisco IOS | =12.3\(4\)xg5 | |
Cisco IOS | =12.3\(4\)xh | |
Cisco IOS | =12.3\(4\)xk | |
Cisco IOS | =12.3\(4\)xk1 | |
Cisco IOS | =12.3\(4\)xk3 | |
Cisco IOS | =12.3\(4\)xk4 | |
Cisco IOS | =12.3\(4\)xq | |
Cisco IOS | =12.3\(4\)xq1 | |
Cisco IOS | =12.3\(5\) | |
Cisco IOS | =12.3\(5\)b1 | |
Cisco IOS | =12.3\(5a\) | |
Cisco IOS | =12.3\(5a\)b | |
Cisco IOS | =12.3\(5a\)b2 | |
Cisco IOS | =12.3\(5a\)b5 | |
Cisco IOS | =12.3\(5b\) | |
Cisco IOS | =12.3\(5c\) | |
Cisco IOS | =12.3\(5e\) | |
Cisco IOS | =12.3\(5f\) | |
Cisco IOS | =12.3\(6\) | |
Cisco IOS | =12.3\(6a\) | |
Cisco IOS | =12.3\(6d\) | |
Cisco IOS | =12.3\(6e\) | |
Cisco IOS | =12.3\(6f\) | |
Cisco IOS | =12.3\(7\)ja | |
Cisco IOS | =12.3\(7\)ja1 | |
Cisco IOS | =12.3\(7\)jx | |
Cisco IOS | =12.3\(7\)t | |
Cisco IOS | =12.3\(7\)t4 | |
Cisco IOS | =12.3\(7\)t8 | |
Cisco IOS | =12.3\(7\)t9 | |
Cisco IOS | =12.3\(7\)t10 | |
Cisco IOS | =12.3\(7\)t12 | |
Cisco IOS | =12.3\(7\)xi3 | |
Cisco IOS | =12.3\(7\)xi4 | |
Cisco IOS | =12.3\(7\)xi7 | |
Cisco IOS | =12.3\(7\)xr3 | |
Cisco IOS | =12.3\(7\)xr4 | |
Cisco IOS | =12.3\(7\)xr6 | |
Cisco IOS | =12.3\(7.7\) | |
Cisco IOS | =12.3\(8\)ja | |
Cisco IOS | =12.3\(8\)ja1 | |
Cisco IOS | =12.3\(8\)t4 | |
Cisco IOS | =12.3\(8\)t7 | |
Cisco IOS | =12.3\(8\)t8 | |
Cisco IOS | =12.3\(8\)t9 | |
Cisco IOS | =12.3\(8\)t11 | |
Cisco IOS | =12.3\(8\)xu2 | |
Cisco IOS | =12.3\(8\)xy4 | |
Cisco IOS | =12.3\(8\)xy5 | |
Cisco IOS | =12.3\(8\)xy6 | |
Cisco IOS | =12.3\(8\)ya1 | |
Cisco IOS | =12.3\(8\)yd | |
Cisco IOS | =12.3\(8\)yf | |
Cisco IOS | =12.3\(8\)yg | |
Cisco IOS | =12.3\(8\)yg1 | |
Cisco IOS | =12.3\(8\)yg2 | |
Cisco IOS | =12.3\(8\)yg3 | |
Cisco IOS | =12.3\(8\)yh | |
Cisco IOS | =12.3\(8\)yi | |
Cisco IOS | =12.3\(8\)yi1 | |
Cisco IOS | =12.3\(8\)yi3 | |
Cisco IOS | =12.3\(9\) | |
Cisco IOS | =12.3\(9a\)bc | |
Cisco IOS | =12.3\(9a\)bc2 | |
Cisco IOS | =12.3\(9a\)bc6 | |
Cisco IOS | =12.3\(9a\)bc7 | |
Cisco IOS | =12.3\(9d\) | |
Cisco IOS | =12.3\(9e\) | |
Cisco IOS | =12.3\(10\) | |
Cisco IOS | =12.3\(10c\) | |
Cisco IOS | =12.3\(10d\) | |
Cisco IOS | =12.3\(10e\) | |
Cisco IOS | =12.3\(11\) | |
Cisco IOS | =12.3\(11\)t | |
Cisco IOS | =12.3\(11\)t4 | |
Cisco IOS | =12.3\(11\)t5 | |
Cisco IOS | =12.3\(11\)t6 | |
Cisco IOS | =12.3\(11\)t8 | |
Cisco IOS | =12.3\(11\)t9 | |
Cisco IOS | =12.3\(11\)xl | |
Cisco IOS | =12.3\(11\)xl3 | |
Cisco IOS | =12.3\(11\)yf | |
Cisco IOS | =12.3\(11\)yf2 | |
Cisco IOS | =12.3\(11\)yf3 | |
Cisco IOS | =12.3\(11\)yf4 | |
Cisco IOS | =12.3\(11\)yj | |
Cisco IOS | =12.3\(11\)yk | |
Cisco IOS | =12.3\(11\)yk1 | |
Cisco IOS | =12.3\(11\)yk2 | |
Cisco IOS | =12.3\(11\)yl | |
Cisco IOS | =12.3\(11\)yn | |
Cisco IOS | =12.3\(11\)yr | |
Cisco IOS | =12.3\(11\)ys | |
Cisco IOS | =12.3\(11\)ys1 | |
Cisco IOS | =12.3\(11\)yw | |
Cisco IOS | =12.3\(12\) | |
Cisco IOS | =12.3\(12b\) | |
Cisco IOS | =12.3\(12e\) | |
Cisco IOS | =12.3\(13\) | |
Cisco IOS | =12.3\(13a\) | |
Cisco IOS | =12.3\(13a\)bc | |
Cisco IOS | =12.3\(13a\)bc1 | |
Cisco IOS | =12.3\(13b\) | |
Cisco IOS | =12.3\(14\)t | |
Cisco IOS | =12.3\(14\)t2 | |
Cisco IOS | =12.3\(14\)t4 | |
Cisco IOS | =12.3\(14\)t5 | |
Cisco IOS | =12.3\(14\)ym4 | |
Cisco IOS | =12.3\(14\)yq | |
Cisco IOS | =12.3\(14\)yq1 | |
Cisco IOS | =12.3\(14\)yq3 | |
Cisco IOS | =12.3\(14\)yq4 | |
Cisco IOS | =12.3\(14\)yt | |
Cisco IOS | =12.3\(14\)yt1 | |
Cisco IOS | =12.3\(14\)yu | |
Cisco IOS | =12.3\(14\)yu1 | |
Cisco IOS | =12.3\(15\) | |
Cisco IOS | =12.3\(15b\) | |
Cisco IOS | =12.3\(16\) | |
Cisco IOS | =12.3b | |
Cisco IOS | =12.3bc | |
Cisco IOS | =12.3bw | |
Cisco IOS | =12.3j | |
Cisco IOS | =12.3ja | |
Cisco IOS | =12.3jea | |
Cisco IOS | =12.3jeb | |
Cisco IOS | =12.3jec | |
Cisco IOS | =12.3jed | |
Cisco IOS | =12.3jk | |
Cisco IOS | =12.3jl | |
Cisco IOS | =12.3jx | |
Cisco IOS | =12.3t | |
Cisco IOS | =12.3tpc | |
Cisco IOS | =12.3va | |
Cisco IOS | =12.3xa | |
Cisco IOS | =12.3xb | |
Cisco IOS | =12.3xc | |
Cisco IOS | =12.3xd | |
Cisco IOS | =12.3xe | |
Cisco IOS | =12.3xf | |
Cisco IOS | =12.3xg | |
Cisco IOS | =12.3xh | |
Cisco IOS | =12.3xi | |
Cisco IOS | =12.3xj | |
Cisco IOS | =12.3xk | |
Cisco IOS | =12.3xl | |
Cisco IOS | =12.3xm | |
Cisco IOS | =12.3xn | |
Cisco IOS | =12.3xq | |
Cisco IOS | =12.3xr | |
Cisco IOS | =12.3xs | |
Cisco IOS | =12.3xt | |
Cisco IOS | =12.3xu | |
Cisco IOS | =12.3xv | |
Cisco IOS | =12.3xw | |
Cisco IOS | =12.3xx | |
Cisco IOS | =12.3xy | |
Cisco IOS | =12.3xz | |
Cisco IOS | =12.3ya | |
Cisco IOS | =12.3yb | |
Cisco IOS | =12.3yc | |
Cisco IOS | =12.3yd | |
Cisco IOS | =12.3ye | |
Cisco IOS | =12.3yf | |
Cisco IOS | =12.3yg | |
Cisco IOS | =12.3yh | |
Cisco IOS | =12.3yi | |
Cisco IOS | =12.3yj | |
Cisco IOS | =12.3yk | |
Cisco IOS | =12.3yl | |
Cisco IOS | =12.3ym | |
Cisco IOS | =12.3yn | |
Cisco IOS | =12.3yq | |
Cisco IOS | =12.3yr | |
Cisco IOS | =12.3ys | |
Cisco IOS | =12.3yt | |
Cisco IOS | =12.3yu | |
Cisco IOS | =12.3yw | |
Cisco IOS | =12.3yx | |
Cisco IOS | =12.3yz | |
Cisco IOS | =12.3za | |
Cisco IOS | =12.4 | |
Cisco IOS | =12.4\(1\) | |
Cisco IOS | =12.4\(1b\) | |
Cisco IOS | =12.4\(1c\) | |
Cisco IOS | =12.4\(2\)mr | |
Cisco IOS | =12.4\(2\)mr1 | |
Cisco IOS | =12.4\(2\)t | |
Cisco IOS | =12.4\(2\)t1 | |
Cisco IOS | =12.4\(2\)t2 | |
Cisco IOS | =12.4\(2\)t3 | |
Cisco IOS | =12.4\(2\)t4 | |
Cisco IOS | =12.4\(2\)xa | |
Cisco IOS | =12.4\(2\)xb | |
Cisco IOS | =12.4\(2\)xb2 | |
Cisco IOS | =12.4\(3\) | |
Cisco IOS | =12.4\(3\)t2 | |
Cisco IOS | =12.4\(3a\) | |
Cisco IOS | =12.4\(3b\) | |
Cisco IOS | =12.4\(3d\) | |
Cisco IOS | =12.4\(4\)mr | |
Cisco IOS | =12.4\(4\)t | |
Cisco IOS | =12.4\(4\)t2 | |
Cisco IOS | =12.4\(5\) | |
Cisco IOS | =12.4\(5b\) | |
Cisco IOS | =12.4\(6\)t | |
Cisco IOS | =12.4\(6\)t1 | |
Cisco IOS | =12.4\(7\) | |
Cisco IOS | =12.4\(7a\) | |
Cisco IOS | =12.4\(8\) | |
Cisco IOS | =12.4\(9\)t | |
Cisco IOS | =12.4\(11\)md | |
Cisco IOS | =12.4\(15\)md | |
Cisco IOS | =12.4\(22\)md | |
Cisco IOS | =12.4\(22\)mda | |
Cisco IOS | =12.4\(23\) | |
Cisco IOS | =12.4\(24\)md | |
Cisco IOS | =12.4\(24\)md1 | |
Cisco IOS | =12.4\(24\)md2 | |
Cisco IOS | =12.4\(24\)md3 | |
Cisco IOS | =12.4\(24\)md4 | |
Cisco IOS | =12.4\(24\)mda | |
Cisco IOS | =12.4\(24\)t1 | |
Cisco IOS | =12.4gc | |
Cisco IOS | =12.4ja | |
Cisco IOS | =12.4jda | |
Cisco IOS | =12.4jdc | |
Cisco IOS | =12.4jdd | |
Cisco IOS | =12.4jk | |
Cisco IOS | =12.4jl | |
Cisco IOS | =12.4jma | |
Cisco IOS | =12.4jmb | |
Cisco IOS | =12.4jx | |
Cisco IOS | =12.4md | |
Cisco IOS | =12.4mda | |
Cisco IOS | =12.4mdb | |
Cisco IOS | =12.4mr | |
Cisco IOS | =12.4mra | |
Cisco IOS | =12.4xm | |
Cisco IOS | =12.4xn | |
Cisco IOS | =12.4xp | |
Cisco IOS | =12.4xq | |
Cisco IOS | =12.4xr | |
Cisco IOS | =12.4xt | |
Cisco IOS | =12.4xv | |
Cisco IOS | =12.4xw | |
Cisco IOS | =12.4xy | |
Cisco IOS | =12.4xz | |
Cisco IOS | =12.4ya | |
Cisco IOS | =12.4yb | |
Cisco IOS | =12.4yd | |
Cisco IOS | =12.4ye | |
Cisco IOS | =12.4yg | |
Cisco IOS | =15.0 | |
Cisco IOS | =15.0\(1\)se | |
Cisco IOS | =15.1 | |
Cisco IOS | =15.2 |
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