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CVE-2021-0240

Junos OS: Receipt of malformed DHCPv6 packets causes jdhcpd to crash and restart. PUBLISHED

Description (CNA)

On Juniper Networks Junos OS platforms configured as DHCPv6 local server or DHCPv6 Relay Agent, the Juniper Networks Dynamic Host Configuration Protocol Daemon (JDHCPD) process might crash if a malformed DHCPv6 packet is received, resulting in a restart of the daemon. The daemon automatically restarts without intervention, but continued receipt and processing of this packet will create a sustained Denial of Service (DoS) condition. This issue only affects DHCPv6. DHCPv4 is not affected by this issue. This issue affects Juniper Networks Junos OS: 17.3 versions prior to 17.3R3-S12; 17.4 versions prior to 17.4R3-S5; 18.1 versions prior to 18.1R3-S13; 18.2 versions prior to 18.2R3-S8; 18.3 versions prior to 18.3R3-S5; 18.4 versions prior to 18.4R1-S8, 18.4R3-S7; 19.1 versions prior to 19.1R3-S5; 19.2 versions prior to 19.2R3-S2; 19.3 versions prior to 19.3R3-S2; 19.4 versions prior to 19.4R3-S2; 20.1 versions prior to 20.1R3; 20.2 versions prior to 20.2R2-S3, 20.2R3; 20.3 versions prior to 20.3R2; 20.4 versions prior to 20.4R2.

Affected (CNA)

Vendor / productVersions
Juniper Networks / Junos OSaffected 17.3 before 17.3R3-S12; affected 17.4 before 17.4R3-S5; affected 18.1 before 18.1R3-S13; affected 18.2 before 18.2R3-S8; affected 18.3 before 18.3R3-S5; affected 18.4 before 18.4R1-S8, 18.4R3-S7; affected 19.1 before 19.1R3-S5; affected 19.2 before 19.2R3-S2; affected 19.3 before 19.3R3-S2; affected 19.4 before 19.4R3-S2; affected 20.1 before 20.1R3; affected 20.2 before 20.2R2-S3, 20.2R3; affected 20.3 before 20.3R2; affected 20.4 before 20.4R2

CWE

CWE-703

References

ADP enrichment

CVE

No English description supplied.