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High severity7.5NVD Advisory· Published Oct 9, 2019· Updated Jun 17, 2026

CVE-2019-0055

CVE-2019-0055

Description

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.

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Affected products

41
  • Juniper Networks/Junos41 versions
    cpe:2.3:o:juniper:junos:12.3x48:d10:*:*:*:*:*:*+ 40 more
    • cpe:2.3:o:juniper:junos:12.3x48:d10:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:12.3x48:d15:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:12.3x48:d25:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:12.3x48:d30:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:12.3x48:d35:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:12.3x48:d40:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:12.3x48:d45:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:12.3x48:d50:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:12.3x48:d55:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:12.3x48:d60:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:15.1x49:-:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:15.1x49:d100:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:15.1x49:d10:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:15.1x49:d110:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:15.1x49:d120:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:15.1x49:d20:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:15.1x49:d30:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:15.1x49:d35:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:15.1x49:d40:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:15.1x49:d45:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:15.1x49:d50:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:15.1x49:d55:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:15.1x49:d60:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:15.1x49:d65:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:15.1x49:d70:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:15.1x49:d75:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:15.1x49:d80:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:15.1x49:d90:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:17.3:-:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:17.3:r2-s1:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:17.3:r2-s2:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:17.3:r2:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:17.4:-:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:17.4:r1-s1:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:17.4:r1-s2:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:17.4:r1-s4:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:17.4:r1-s6:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:17.4:r1-s7:*:*:*:*:*:*
    • cpe:2.3:o:juniper:junos:17.4:r1:*:*:*:*:*:*
    • (no CPE)range: <12.3X48-D61, <12.3X48-D65, <15.1X49-D130, <17.3R3, <17.4R2
    • (no CPE)range: 12.3X48

Patches

Vulnerability mechanics

References

2

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