CVE-2019-0055

Summary

A vulnerability in the SIP ALG packet processing service of Juniper Networks Junos OS allows an attacker to cause a Denial of Service (DoS) to the device by sending specific types of valid SIP traffic to the device. In this case, the flowd process crashes and generates a core dump while processing SIP ALG traffic. Continued receipt of these valid SIP packets will result in a sustained Denial of Service (DoS) condition. This issue affects: Juniper Networks Junos OS: 12.3X48 versions prior to 12.3X48-D61, 12.3X48-D65 on SRX Series; 15.1X49 versions prior to 15.1X49-D130 on SRX Series; 17.3 versions prior to 17.3R3 on SRX Series; 17.4 versions prior to 17.4R2 on SRX Series.

Affected Software

VendorProductVersion RangeStatus
Juniper NetworksJunos OS12.3X48 < 12.3X48-D61, 12.3X48-D65affected
Juniper NetworksJunos OS15.1X49 < 15.1X49-D130affected
Juniper NetworksJunos OS17.3 < 17.3R3affected
Juniper NetworksJunos OS17.4 < 17.4R2affected

Weaknesses

  • CWE-130: CWE-130 Improper Handling of Length Parameter Inconsistency

Workarounds

Disable SIP ALG if this is not needed, otherwise there are no viable workarounds for this issue.

ADP Enrichment

CVE Program Container

Additional References

References