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Junos NAT Protocol Translation Denial of Service Vulnerability
Information
Severity
Severity
High
Family
Family
JunOS Local Security Checks
CVSSv2 Base
CVSSv2 Base
7.8
CVSSv2 Vector
CVSSv2 Vector
AV:N/AC:L/Au:N/C:N/I:N/A:C
Solution Type
Solution Type
Vendor Patch
Created
Created
9 years ago
Modified
Modified
5 years ago
Summary
DoS in NAT Protocol Translation
Insight
Insight
On SRX Series devices, when NAT protocol translation from IPv4 to IPv6 is enabled, a certain crafted packet may cause the flowd process to hang or crash.
Affected Software
Affected Software
Junos OS 11.4, 12.1X44, 12.1X45 or 12.1X46.
Detection Method
Detection Method
Checks if a vulnerable OS build is present on the target host.
Solution
Solution
New builds of Junos OS software are available from Juniper. As a workaround disable NAT protocol translation if it is not required.