CVE Vulnerabilities

CVE-2021-0241

Improper Handling of Exceptional Conditions

Published: Apr 22, 2021 | Modified: Jul 23, 2021
CVSS 3.x
6.5
MEDIUM
Source:
NVD
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.x
3.3 LOW
AV:A/AC:L/Au:N/C:N/I:N/A:P
RedHat/V2
RedHat/V3
Ubuntu

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.

Weakness

The product does not handle or incorrectly handles an exceptional condition.

Affected Software

Name Vendor Start Version End Version
Junos Juniper 17.3 (including) 17.3 (including)
Junos Juniper 17.3-r1 (including) 17.3-r1 (including)
Junos Juniper 17.3-r1-s1 (including) 17.3-r1-s1 (including)
Junos Juniper 17.3-r1-s4 (including) 17.3-r1-s4 (including)
Junos Juniper 17.3-r2 (including) 17.3-r2 (including)
Junos Juniper 17.3-r2-s1 (including) 17.3-r2-s1 (including)
Junos Juniper 17.3-r2-s2 (including) 17.3-r2-s2 (including)
Junos Juniper 17.3-r2-s3 (including) 17.3-r2-s3 (including)
Junos Juniper 17.3-r2-s4 (including) 17.3-r2-s4 (including)
Junos Juniper 17.3-r2-s5 (including) 17.3-r2-s5 (including)
Junos Juniper 17.3-r3 (including) 17.3-r3 (including)
Junos Juniper 17.3-r3-s1 (including) 17.3-r3-s1 (including)
Junos Juniper 17.3-r3-s10 (including) 17.3-r3-s10 (including)
Junos Juniper 17.3-r3-s11 (including) 17.3-r3-s11 (including)
Junos Juniper 17.3-r3-s2 (including) 17.3-r3-s2 (including)
Junos Juniper 17.3-r3-s3 (including) 17.3-r3-s3 (including)
Junos Juniper 17.3-r3-s4 (including) 17.3-r3-s4 (including)
Junos Juniper 17.3-r3-s5 (including) 17.3-r3-s5 (including)
Junos Juniper 17.3-r3-s6 (including) 17.3-r3-s6 (including)
Junos Juniper 17.3-r3-s7 (including) 17.3-r3-s7 (including)
Junos Juniper 17.3-r3-s8 (including) 17.3-r3-s8 (including)
Junos Juniper 17.3-r3-s9 (including) 17.3-r3-s9 (including)
Junos Juniper 17.4 (including) 17.4 (including)
Junos Juniper 17.4-r1 (including) 17.4-r1 (including)
Junos Juniper 17.4-r1-s1 (including) 17.4-r1-s1 (including)
Junos Juniper 17.4-r1-s2 (including) 17.4-r1-s2 (including)
Junos Juniper 17.4-r1-s3 (including) 17.4-r1-s3 (including)
Junos Juniper 17.4-r1-s4 (including) 17.4-r1-s4 (including)
Junos Juniper 17.4-r1-s5 (including) 17.4-r1-s5 (including)
Junos Juniper 17.4-r1-s6 (including) 17.4-r1-s6 (including)
Junos Juniper 17.4-r1-s7 (including) 17.4-r1-s7 (including)
Junos Juniper 17.4-r2 (including) 17.4-r2 (including)
Junos Juniper 17.4-r2-s1 (including) 17.4-r2-s1 (including)
Junos Juniper 17.4-r2-s10 (including) 17.4-r2-s10 (including)
Junos Juniper 17.4-r2-s11 (including) 17.4-r2-s11 (including)
Junos Juniper 17.4-r2-s2 (including) 17.4-r2-s2 (including)
Junos Juniper 17.4-r2-s3 (including) 17.4-r2-s3 (including)
Junos Juniper 17.4-r2-s4 (including) 17.4-r2-s4 (including)
Junos Juniper 17.4-r2-s5 (including) 17.4-r2-s5 (including)
Junos Juniper 17.4-r2-s6 (including) 17.4-r2-s6 (including)
Junos Juniper 17.4-r2-s7 (including) 17.4-r2-s7 (including)
Junos Juniper 17.4-r2-s8 (including) 17.4-r2-s8 (including)
Junos Juniper 17.4-r2-s9 (including) 17.4-r2-s9 (including)
Junos Juniper 17.4-r3 (including) 17.4-r3 (including)
Junos Juniper 17.4-r3-s1 (including) 17.4-r3-s1 (including)
Junos Juniper 17.4-r3-s2 (including) 17.4-r3-s2 (including)
Junos Juniper 17.4-r3-s3 (including) 17.4-r3-s3 (including)
Junos Juniper 17.4-r3-s4 (including) 17.4-r3-s4 (including)
Junos Juniper 18.1 (including) 18.1 (including)
Junos Juniper 18.1-r1 (including) 18.1-r1 (including)
Junos Juniper 18.1-r2 (including) 18.1-r2 (including)
Junos Juniper 18.1-r2-s1 (including) 18.1-r2-s1 (including)
Junos Juniper 18.1-r2-s2 (including) 18.1-r2-s2 (including)
Junos Juniper 18.1-r2-s4 (including) 18.1-r2-s4 (including)
Junos Juniper 18.1-r3 (including) 18.1-r3 (including)
Junos Juniper 18.1-r3-s1 (including) 18.1-r3-s1 (including)
Junos Juniper 18.1-r3-s10 (including) 18.1-r3-s10 (including)
Junos Juniper 18.1-r3-s11 (including) 18.1-r3-s11 (including)
Junos Juniper 18.1-r3-s12 (including) 18.1-r3-s12 (including)
Junos Juniper 18.1-r3-s2 (including) 18.1-r3-s2 (including)
Junos Juniper 18.1-r3-s3 (including) 18.1-r3-s3 (including)
Junos Juniper 18.1-r3-s4 (including) 18.1-r3-s4 (including)
Junos Juniper 18.1-r3-s5 (including) 18.1-r3-s5 (including)
Junos Juniper 18.1-r3-s6 (including) 18.1-r3-s6 (including)
Junos Juniper 18.1-r3-s7 (including) 18.1-r3-s7 (including)
Junos Juniper 18.1-r3-s8 (including) 18.1-r3-s8 (including)
Junos Juniper 18.1-r3-s9 (including) 18.1-r3-s9 (including)
Junos Juniper 18.2 (including) 18.2 (including)
Junos Juniper 18.2-r1 (including) 18.2-r1 (including)
Junos Juniper 18.2-r1-s2 (including) 18.2-r1-s2 (including)
Junos Juniper 18.2-r1-s3 (including) 18.2-r1-s3 (including)
Junos Juniper 18.2-r1-s4 (including) 18.2-r1-s4 (including)
Junos Juniper 18.2-r1-s5 (including) 18.2-r1-s5 (including)
Junos Juniper 18.2-r2 (including) 18.2-r2 (including)
Junos Juniper 18.2-r2-s1 (including) 18.2-r2-s1 (including)
Junos Juniper 18.2-r2-s2 (including) 18.2-r2-s2 (including)
Junos Juniper 18.2-r2-s3 (including) 18.2-r2-s3 (including)
Junos Juniper 18.2-r2-s4 (including) 18.2-r2-s4 (including)
Junos Juniper 18.2-r2-s5 (including) 18.2-r2-s5 (including)
Junos Juniper 18.2-r2-s6 (including) 18.2-r2-s6 (including)
Junos Juniper 18.2-r2-s7 (including) 18.2-r2-s7 (including)
Junos Juniper 18.2-r3 (including) 18.2-r3 (including)
Junos Juniper 18.2-r3-s1 (including) 18.2-r3-s1 (including)
Junos Juniper 18.2-r3-s2 (including) 18.2-r3-s2 (including)
Junos Juniper 18.2-r3-s3 (including) 18.2-r3-s3 (including)
Junos Juniper 18.2-r3-s4 (including) 18.2-r3-s4 (including)
Junos Juniper 18.3 (including) 18.3 (including)
Junos Juniper 18.3-r1 (including) 18.3-r1 (including)
Junos Juniper 18.3-r1-s1 (including) 18.3-r1-s1 (including)
Junos Juniper 18.3-r1-s2 (including) 18.3-r1-s2 (including)
Junos Juniper 18.3-r1-s3 (including) 18.3-r1-s3 (including)
Junos Juniper 18.3-r1-s4 (including) 18.3-r1-s4 (including)
Junos Juniper 18.3-r1-s5 (including) 18.3-r1-s5 (including)
Junos Juniper 18.3-r1-s6 (including) 18.3-r1-s6 (including)
Junos Juniper 18.3-r2 (including) 18.3-r2 (including)
Junos Juniper 18.3-r2-s1 (including) 18.3-r2-s1 (including)
Junos Juniper 18.3-r2-s2 (including) 18.3-r2-s2 (including)
Junos Juniper 18.3-r2-s3 (including) 18.3-r2-s3 (including)
Junos Juniper 18.3-r2-s4 (including) 18.3-r2-s4 (including)
Junos Juniper 18.3-r3 (including) 18.3-r3 (including)
Junos Juniper 18.3-r3-s1 (including) 18.3-r3-s1 (including)
Junos Juniper 18.3-r3-s2 (including) 18.3-r3-s2 (including)
Junos Juniper 18.3-r3-s3 (including) 18.3-r3-s3 (including)
Junos Juniper 18.3-r3-s4 (including) 18.3-r3-s4 (including)
Junos Juniper 18.4 (including) 18.4 (including)
Junos Juniper 18.4-r1 (including) 18.4-r1 (including)
Junos Juniper 18.4-r1-s1 (including) 18.4-r1-s1 (including)
Junos Juniper 18.4-r1-s2 (including) 18.4-r1-s2 (including)
Junos Juniper 18.4-r1-s3 (including) 18.4-r1-s3 (including)
Junos Juniper 18.4-r1-s4 (including) 18.4-r1-s4 (including)
Junos Juniper 18.4-r1-s5 (including) 18.4-r1-s5 (including)
Junos Juniper 18.4-r1-s6 (including) 18.4-r1-s6 (including)
Junos Juniper 18.4-r1-s7 (including) 18.4-r1-s7 (including)
Junos Juniper 18.4-r2 (including) 18.4-r2 (including)
Junos Juniper 18.4-r2-s1 (including) 18.4-r2-s1 (including)
Junos Juniper 18.4-r2-s2 (including) 18.4-r2-s2 (including)
Junos Juniper 18.4-r2-s3 (including) 18.4-r2-s3 (including)
Junos Juniper 18.4-r2-s4 (including) 18.4-r2-s4 (including)
Junos Juniper 18.4-r2-s5 (including) 18.4-r2-s5 (including)
Junos Juniper 18.4-r2-s6 (including) 18.4-r2-s6 (including)
Junos Juniper 18.4-r3 (including) 18.4-r3 (including)
Junos Juniper 18.4-r3-s1 (including) 18.4-r3-s1 (including)
Junos Juniper 18.4-r3-s2 (including) 18.4-r3-s2 (including)
Junos Juniper 18.4-r3-s3 (including) 18.4-r3-s3 (including)
Junos Juniper 18.4-r3-s4 (including) 18.4-r3-s4 (including)
Junos Juniper 18.4-r3-s5 (including) 18.4-r3-s5 (including)
Junos Juniper 18.4-r3-s6 (including) 18.4-r3-s6 (including)
Junos Juniper 19.1 (including) 19.1 (including)
Junos Juniper 19.1-r1 (including) 19.1-r1 (including)
Junos Juniper 19.1-r1-s1 (including) 19.1-r1-s1 (including)
Junos Juniper 19.1-r1-s2 (including) 19.1-r1-s2 (including)
Junos Juniper 19.1-r1-s3 (including) 19.1-r1-s3 (including)
Junos Juniper 19.1-r1-s4 (including) 19.1-r1-s4 (including)
Junos Juniper 19.1-r1-s5 (including) 19.1-r1-s5 (including)
Junos Juniper 19.1-r2 (including) 19.1-r2 (including)
Junos Juniper 19.1-r2-s1 (including) 19.1-r2-s1 (including)
Junos Juniper 19.1-r3 (including) 19.1-r3 (including)
Junos Juniper 19.1-r3-s1 (including) 19.1-r3-s1 (including)
Junos Juniper 19.1-r3-s2 (including) 19.1-r3-s2 (including)
Junos Juniper 19.1-r3-s3 (including) 19.1-r3-s3 (including)
Junos Juniper 19.1-r3-s4 (including) 19.1-r3-s4 (including)
Junos Juniper 19.2 (including) 19.2 (including)
Junos Juniper 19.2-r1 (including) 19.2-r1 (including)
Junos Juniper 19.2-r1-s1 (including) 19.2-r1-s1 (including)
Junos Juniper 19.2-r1-s2 (including) 19.2-r1-s2 (including)
Junos Juniper 19.2-r1-s3 (including) 19.2-r1-s3 (including)
Junos Juniper 19.2-r1-s4 (including) 19.2-r1-s4 (including)
Junos Juniper 19.2-r1-s5 (including) 19.2-r1-s5 (including)
Junos Juniper 19.2-r2 (including) 19.2-r2 (including)
Junos Juniper 19.2-r2-s1 (including) 19.2-r2-s1 (including)
Junos Juniper 19.2-r3 (including) 19.2-r3 (including)
Junos Juniper 19.2-r3-s1 (including) 19.2-r3-s1 (including)
Junos Juniper 19.3 (including) 19.3 (including)
Junos Juniper 19.3-r1 (including) 19.3-r1 (including)
Junos Juniper 19.3-r1-s1 (including) 19.3-r1-s1 (including)
Junos Juniper 19.3-r2 (including) 19.3-r2 (including)
Junos Juniper 19.3-r2-s1 (including) 19.3-r2-s1 (including)
Junos Juniper 19.3-r2-s2 (including) 19.3-r2-s2 (including)
Junos Juniper 19.3-r2-s3 (including) 19.3-r2-s3 (including)
Junos Juniper 19.3-r2-s4 (including) 19.3-r2-s4 (including)
Junos Juniper 19.3-r2-s5 (including) 19.3-r2-s5 (including)
Junos Juniper 19.3-r3 (including) 19.3-r3 (including)
Junos Juniper 19.4-r1 (including) 19.4-r1 (including)
Junos Juniper 19.4-r1-s1 (including) 19.4-r1-s1 (including)
Junos Juniper 19.4-r1-s2 (including) 19.4-r1-s2 (including)
Junos Juniper 19.4-r2 (including) 19.4-r2 (including)
Junos Juniper 19.4-r2-s1 (including) 19.4-r2-s1 (including)
Junos Juniper 19.4-r2-s2 (including) 19.4-r2-s2 (including)
Junos Juniper 19.4-r3 (including) 19.4-r3 (including)
Junos Juniper 19.4-r3-s1 (including) 19.4-r3-s1 (including)
Junos Juniper 20.1-r1 (including) 20.1-r1 (including)
Junos Juniper 20.1-r1-s1 (including) 20.1-r1-s1 (including)
Junos Juniper 20.1-r1-s2 (including) 20.1-r1-s2 (including)
Junos Juniper 20.1-r1-s3 (including) 20.1-r1-s3 (including)
Junos Juniper 20.1-r1-s4 (including) 20.1-r1-s4 (including)
Junos Juniper 20.1-r2 (including) 20.1-r2 (including)
Junos Juniper 20.1-r2-s1 (including) 20.1-r2-s1 (including)
Junos Juniper 20.2-r1 (including) 20.2-r1 (including)
Junos Juniper 20.2-r1-s1 (including) 20.2-r1-s1 (including)
Junos Juniper 20.2-r1-s2 (including) 20.2-r1-s2 (including)
Junos Juniper 20.2-r1-s3 (including) 20.2-r1-s3 (including)
Junos Juniper 20.2-r2 (including) 20.2-r2 (including)
Junos Juniper 20.2-r2-s1 (including) 20.2-r2-s1 (including)
Junos Juniper 20.2-r2-s2 (including) 20.2-r2-s2 (including)
Junos Juniper 20.3-r1 (including) 20.3-r1 (including)
Junos Juniper 20.3-r1-s1 (including) 20.3-r1-s1 (including)
Junos Juniper 20.4-r1 (including) 20.4-r1 (including)

References