CVE-2020-1671: Junos OS: Receipt of malformed DHCPv6 packets causes jdhcpd to crash.
On Juniper Networks Junos OS platforms configured as DHCPv6 local server or DHCPv6 Relay Agent, Juniper Networks Dynamic Host Configuration Protocol Daemon (JDHCPD) process might crash with a core dump if a malformed DHCPv6 packet is received, resulting with the restart of the daemon. This issue only affects DHCPv6, it does not affect DHCPv4. This issue affects: Juniper Networks Junos OS 17.4 versions prior to 17.4R2-S12, 17.4R3-S3; 18.1 versions prior to 18.1R3-S11; 18.2 versions prior to 18.2R3-S6; 18.2X75 versions prior to 18.2X75-D65; 18.3 versions prior to 18.3R2-S4, 18.3R3-S3; 18.4 versions prior to 18.4R2-S5, 18.4R3-S4; 19.1 versions prior to 19.1R3-S2; 19.2 versions prior to 19.2R1-S5, 19.2R3; 19.2 version 19.2R2 and later versions; 19.3 versions prior to 19.3R2-S4, 19.3R3; 19.4 versions prior to 19.4R1-S3, 19.4R2-S2, 19.4R3; 20.1 versions prior to 20.1R1-S3, 20.1R2; This issue does not affect Juniper Networks Junos OS prior to 17.4R1.
Affected Software
Remediation
Information
Event History
Frequently Asked Questions
What is the severity of CVE-2020-1671?
CVE-2020-1671 is rated as a high-severity vulnerability in Juniper Networks Junos OS.
How do I fix CVE-2020-1671?
To fix CVE-2020-1671, you should upgrade to a patched version of Junos OS as specified in Juniper's security advisory.
What versions of Junos OS are affected by CVE-2020-1671?
CVE-2020-1671 affects Junos OS versions 17.4, 18.1, 18.2, 18.3, 18.4, 19.1, 19.2, 19.3, 19.4, 20.1, and their respective revisions.
What impact does CVE-2020-1671 have on affected devices?
CVE-2020-1671 may cause the Juniper Dynamic Host Configuration Protocol Daemon (JDHCPD) to crash, potentially disrupting DHCP services.
Is there a workaround for CVE-2020-1671?
While there is no specific workaround mentioned for CVE-2020-1671, applying the security patches is strongly recommended to mitigate risks.