First published: Sat Dec 19 2015(Updated: )
The IKEv1 state machine in Cisco IOS 15.4 through 15.6 and IOS XE 3.15 through 3.17 allows remote attackers to cause a denial of service (IPsec connection termination) via a crafted IKEv1 packet to a tunnel endpoint, aka Bug ID CSCuw08236.
Credit: ykramarz@cisco.com
Affected Software | Affected Version | How to fix |
---|---|---|
Cisco IOS | =15.4\(3\)s | |
Cisco IOS | =15.5\(1\)s | |
Cisco IOS | =15.5\(1\)t | |
Cisco IOS | =15.5\(2\)s | |
Cisco IOS | =15.5\(2\)t | |
Cisco IOS | =15.5\(3\)m | |
Cisco IOS | =15.5\(3\)m1 | |
Cisco IOS | =15.5\(3\)s | |
Cisco IOS | =15.5\(3\)s1 | |
Cisco IOS | =15.6\(0.17\)t | |
Cisco IOS | =15.6\(1\)t0a | |
Cisco IOS XE | =3.15s.0 | |
Cisco IOS XE | =3.15s.1 | |
Cisco IOS XE | =3.15s.2 | |
Cisco IOS XE | =3.16s.0 | |
Cisco IOS XE | =3.16s.1 | |
Cisco IOS XE | =3.17s.0 | |
Cisco IOS XE | =3.17s.1 |
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CVE-2015-6429 is classified as a denial of service vulnerability.
To mitigate CVE-2015-6429, upgrade to an unaffected version of Cisco IOS or IOS XE.
CVE-2015-6429 affects Cisco IOS versions 15.4 through 15.6 and IOS XE versions 3.15 through 3.17.
Yes, CVE-2015-6429 can be exploited remotely through crafted IKEv1 packets.
Exploitation of CVE-2015-6429 may result in IPsec connection termination, leading to service disruption.