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Junos TCP Reassembly DoS Vulnerability
Information
Severity
Severity
Medium
Family
Family
JunOS Local Security Checks
CVSSv2 Base
CVSSv2 Base
5.0
CVSSv2 Vector
CVSSv2 Vector
AV:N/AC:L/Au:N/C:N/I:N/A:P
Solution Type
Solution Type
Vendor Patch
Created
Created
8 years ago
Modified
Modified
5 years ago
Summary
Junos OS is prone to a TCP reassembly DoS vulnerability.
Insight
Insight
Receipt of a very specific sequence of fragmented crafted packets destined to the device can lead to consumption of all available buffers and causes a denial of service. Transit traffic cannot trigger this issue, nor is transit traffic affected by the denial of service.
Affected Software
Affected Software
Junos OS 12.1, 12.3, 13.2, 13.3 and 14.1
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.