Receipt of a specially crafted DHCPv6 message destined to a Junos OS device configured as a DHCP server in a Broadband Edge (BBE) environment may result in a jdhcpd daemon crash. The daemon automatically restarts without intervention, but a continuous receipt of crafted DHCPv6 packets could leaded to an extended denial of service condition. This issue only affects Junos OS 15.1 and later. Earlier releases are unaffected by this issue. Devices are only vulnerable to the specially crafted DHCPv6 message if DHCP services are configured. Devices not configured to act as a DHCP server are not vulnerable to this issue. Affected releases are Juniper Networks Junos OS: 15.1 versions before 15.1R7-S2; 15.1X49 versions before 15.1X49-D160; 15.1X53 versions before 15.1X53-D235, 15.1X53-D495; 16.1 versions before 16.1R4-S11, 16.1R6-S6, 16.1R7-S2; 16.2 versions before 16.2R2-S7; 17.1 versions before 17.1R2-S9; 17.2 versions before 17.2R2-S6; 17.3 versions before 17.3R3-S1; 17.4 versions before 17.4R1-S5; 18.1 versions before 18.1R2-S3; 18.2 versions before 18.2R1-S2; 18.2X75 versions before 18.2X75-D20.
| Vulnerable Product | Search on Vulmon | Subscribe to Product |
|---|---|---|
juniper junos 15.1 |
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juniper junos 15.1x49 |
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juniper junos 15.1x53 |
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juniper junos 16.1 |
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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 18.2x75 |
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juniper junos 18.2 |
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