← CVE Intelligence

CVE-2021-0241

Junos OS: Receipt of specific DHCPv6 packet may cause jdhcpd to crash and restart PUBLISHED

Description (CNA)

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 specific DHCPv6 packet is received, resulting in a restart of the daemon. The daemon automatically restarts without intervention, but continued receipt and processing of these specific packets will repeatedly crash the JDHCPD process and sustain the 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-S11; 17.4 versions prior to 17.4R3-S4; 18.1 versions prior to 18.1R3-S12; 18.2 versions prior to 18.2R3-S7; 18.3 versions prior to 18.3R3-S4; 18.4 versions prior to 18.4R3-S7; 19.1 versions prior to 19.1R3-S4; 19.2 versions prior to 19.2R3-S1; 19.3 versions prior to 19.3R3-S1, 19.3R3-S2; 19.4 versions prior to 19.4R3-S1; 20.1 versions prior to 20.1R2, 20.1R3; 20.2 versions prior to 20.2R2, 20.2R3; 20.3 versions prior to 20.3R1-S2, 20.3R2.

Affected (CNA)

Vendor / productVersions
Juniper Networks / Junos OSaffected 17.3 before 17.3R3-S11; affected 17.4 before 17.4R3-S4; affected 18.1 before 18.1R3-S12; affected 18.2 before 18.2R3-S7; affected 18.3 before 18.3R3-S4; affected 18.4 before 18.4R3-S7; affected 19.1 before 19.1R3-S4; affected 19.2 before 19.2R3-S1; affected 19.3 before 19.3R3-S1, 19.3R3-S2; affected 19.4 before 19.4R3-S1; affected 20.1 before 20.1R2, 20.1R3; affected 20.2 before 20.2R2, 20.2R3; affected 20.3 before 20.3R1-S2, 20.3R2

CWE

CWE-703

References

ADP enrichment

CVE

No English description supplied.