Receipt of a specially crafted DHCPv6 message destined to a Junos OS device configured as a DHCP server in a Broadband Edge (BBE) environment may result in a jdhcpd daemon crash. The daemon automatically restarts without intervention, but a continuous receipt of crafted DHCPv6 packets could leaded to an extended denial of service condition. This issue only affects Junos OS 15.1 and later. Earlier releases are unaffected by this issue. Devices are only vulnerable to the specially crafted DHCPv6 message if DHCP services are configured. Devices not configured to act as a DHCP server are not vulnerable to this issue. Affected releases are Juniper Networks Junos OS: 15.1 versions prior to 15.1R7-S2; 15.1X49 versions prior to 15.1X49-D160; 15.1X53 versions prior to 15.1X53-D235, 15.1X53-D495; 16.1 versions prior to 16.1R4-S11, 16.1R6-S6, 16.1R7-S2; 16.2 versions prior to 16.2R2-S7; 17.1 versions prior to 17.1R2-S9; 17.2 versions prior to 17.2R2-S6; 17.3 versions prior to 17.3R3-S1; 17.4 versions prior to 17.4R1-S5; 18.1 versions prior to 18.1R2-S3; 18.2 versions prior to 18.2R1-S2; 18.2X75 versions prior to 18.2X75-D20.
Published 2018-10-10 18:29:03
Updated 2019-10-09 23:31:09
View at NVD,   CVE.org
Vulnerability category: Input validationDenial of service

Products affected by CVE-2018-0055

Exploit prediction scoring system (EPSS) score for CVE-2018-0055

0.06%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 26 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2018-0055

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
2.9
LOW AV:A/AC:M/Au:N/C:N/I:N/A:P
5.5
2.9
NIST
5.3
MEDIUM CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
1.6
3.6
NIST
6.5
MEDIUM CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
2.8
3.6
Juniper Networks, Inc.

CWE ids for CVE-2018-0055

  • The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.
    Assigned by: nvd@nist.gov (Primary)

References for CVE-2018-0055

  • https://kb.juniper.net/JSA10889
    Juniper Networks - 2018-10 Security Bulletin: Junos OS: jdhcpd process crash during processing of specially crafted DHCPv6 message (CVE-2018-0055)
    Vendor Advisory
  • http://www.securitytracker.com/id/1041856
    Juniper Junos DHCPv6 to Broadband Edge (BBE) Processing Bug Let Remote Users Cause the Target 'jdhcpd' Service to Crash - SecurityTracker
    Third Party Advisory;VDB Entry
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