In a Dynamic Host Configuration Protocol version 6 (DHCPv6) environment, the jdhcpd daemon may crash and restart upon receipt of certain DHCPv6 solicit messages received from a DHCPv6 client. By continuously sending the same crafted packet, an attacker can repeatedly crash the jdhcpd process causing a sustained Denial of Service (DoS) to both IPv4 and IPv6 clients. Affected releases are Juniper Networks Junos OS: 15.1 versions before 15.1F6-S12, 15.1R7-S3; 15.1X49 versions before 15.1X49-D171, 15.1X49-D180; 15.1X53 versions before 15.1X53-D236, 15.1X53-D496; 16.1 versions before 16.1R3-S10, 16.1R7-S4; 16.2 versions before 16.2R2-S8; 17.1 versions before 17.1R2-S10, 17.1R3; 17.2 versions before 17.2R1-S8, 17.2R3-S1; 17.3 versions before 17.3R3-S3; 17.4 versions before 17.4R1-S6, 17.4R2-S3; 18.1 versions before 18.1R2-S4, 18.1R3-S2; 18.2 versions before 18.2R2; 18.2X75 versions before 18.2X75-D30; 18.3 versions before 18.3R1-S2. This issue does not affect Junos OS releases before 15.1.
| Vulnerable Product | Search on Vulmon | Subscribe to Product |
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juniper junos 15.1 |
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juniper junos 15.1x49-d30 |
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juniper junos 15.1x49-d140 |
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juniper junos 15.1x49-d150 |
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juniper junos 15.1x49-d160 |
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juniper junos 15.1x49-d60 |
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juniper junos 15.1x53-d51 |
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juniper junos 15.1x53-d55 |
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juniper junos 15.1x53-d57 |
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juniper junos 15.1x53-d58 |
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juniper junos 15.1x53-d59 |
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juniper junos 15.1x53-d50 |
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juniper junos 15.1x53-d52 |
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juniper junos 16 |
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juniper junos 16.2 |
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juniper junos 17.1 |
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juniper junos 17.2 |
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juniper junos 17.3 |
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juniper junos 17.4 |
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juniper junos 18.1 |
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juniper junos 18.2 |
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juniper junos 18.2x75-d10 |
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juniper junos 18.3 |
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