CVE-2021-0206

Summary

A NULL Pointer Dereference vulnerability in Juniper Networks Junos OS allows an attacker to send a specific packet causing the packet forwarding engine (PFE) to crash and restart, resulting in a Denial of Service (DoS). By continuously sending these specific packets, an attacker can repeatedly disable the PFE causing a sustained Denial of Service (DoS). This issue only affects Juniper Networks NFX Series, SRX Series platforms when SSL Proxy is configured. This issue affects Juniper Networks Junos OS on NFX Series and SRX Series: 18.3 versions prior to 18.3R3-S4; 18.4 versions prior to 18.4R3-S1; 19.1 versions prior to 19.1R1-S6, 19.1R2-S2, 19.1R3; 19.2 versions prior to 19.2R1-S2, 19.2R2; 19.3 versions prior to 19.3R2. This issue does not affect Juniper Networks Junos OS versions on NFX Series and SRX Series prior to 18.3R1.

Affected Software

VendorProductVersion RangeStatus
Juniper NetworksJunos OS18.3R1 < 18.3*affected
Juniper NetworksJunos OS18.4 < 18.4R3-S1affected
Juniper NetworksJunos OS19.1 < 19.1R1-S6, 19.1R2-S2, 19.1R3affected
Juniper NetworksJunos OS19.2 < 19.2R1-S2, 19.2R2affected
Juniper NetworksJunos OS19.3 < 19.3R2affected

Weaknesses

  • CWE-476: CWE-476 NULL Pointer Dereference
  • Denial of Service (DoS)

Workarounds

There are no viable workarounds for this issue.

ADP Enrichment

CVE Program Container

Additional References

References