Junos IPv6 to IPv4 Translating Denial of Service Vulnerability

Published: 2014-07-17 12:40:26
CVE Author: NIST National Vulnerability Database

CVSS Base Vector:
AV:N/AC:H/Au:N/C:N/I:N/A:C

Detection Type:
Linux Distribution Package

Solution Type:
Vendor Patch

Summary:
DoS when translating from IPv6 to IPv4.

Detection Method:
Checks if a vulnerable OS build is present on the target host.

Technical Details:
A denial of service (DoS) issue has been discovered in Juniper SRX Series products that can be exploited by remote unauthenticated attackers. This issue takes place when a certain malformed packet is translated from IPv6 to IPv4. When this malformed packet is sent to a vulnerable SRX Series device, the flowd process may crash.

Impact:
Unauthenticated attackers can cause a DoS condition by repeatedly exploiting this vulnerability.

Affected Versions:
Junos OS 11.4, 12.1, 12.1X44, 12.1X45 and 12.1X46.

Recommendations:
New builds of Junos OS software are available from Juniper. As a workaround disable NAT translation from IPv6 to IPv4 if not required.

NIST (National Institute of Standards and Technology) NVD (National Vulnerability Database)

https://nvd.nist.gov/vuln/detail/CVE-2014-3822

SecurityFocus Bugtraq ID:

https://www.securityfocus.com/bid/68553

References:

http://kb.juniper.net/JSA10641

Severity
Medium
CVSS Score
5.4
Published
2014-07-17
Modified
2018-10-25
Category
JunOS Local Security Checks

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