CVE-2018-0034
Junos OS: A malicious crafted IPv6 DHCP packet may cause the JDHCPD daemon to core
- Published
- Updated
- Reserved
- Assigned by
- juniper
Description
A Denial of Service vulnerability exists in the Juniper Networks Junos OS JDHCPD daemon which allows an attacker to core the JDHCPD daemon by sending a crafted IPv6 packet to the system. This issue is limited to systems which receives IPv6 DHCP packets on a system configured for DHCP processing using the JDHCPD daemon. This issue does not affect IPv4 DHCP packet processing. Affected releases are Juniper Networks Junos OS: 12.3 versions prior to 12.3R12-S10 on EX Series; 12.3X48 versions prior to 12.3X48-D70 on SRX Series; 14.1X53 versions prior to 14.1X53-D47 on EX2200/VC, EX3200, EX3300/VC, EX4200, EX4300, EX4550/VC, EX4600, EX6200, EX8200/VC (XRE), QFX3500, QFX3600, QFX5100; 14.1X53 versions prior to 14.1X53-D130 on QFabric; 15.1 versions prior to 15.1R4-S9, 15.1R6-S6, 15.1R7; 15.1X49 versions prior to 15.1X49-D140 on SRX Series; 15.1X53 versions prior to 15.1X53-D67 on QFX10000 Series; 15.1X53 versions prior to 15.1X53-D233 on QFX5110, QFX5200; 15.1X53 versions prior to 15.1X53-D471 on NFX 150, NFX 250; 16.1 versions prior to 16.1R3-S9, 16.1R4-S8, 16.1R5-S4, 16.1R6-S3, 16.1R7; 16.2 versions prior to 16.2R2-S5, 16.2R3; 17.1 versions prior to 17.1R1-S7, 17.1R2-S7, 17.1R3; 17.2 versions prior to 17.2R1-S6, 17.2R2-S4, 17.2R3; 17.3 versions prior to 17.3R1-S4, 17.3R2-S2, 17.3R3; 17.4 versions prior to 17.4R1-S3, 17.4R2.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| juniperCNA (assigner) | 3.0 | Medium5.3 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L |
| NVDNVD · Modified | 3.0 | Medium5.9 | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 2.1% · top 18% of all CVEs (4 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.3.
Weakness
- Denial of Service
- CWE-20 (opens in a new tab)All about CWE-20 and its CVEs
Affected products
- affected 12.3X48 – < 12.3X48-D70
- affected 15.1X49 – < 15.1X49-D140
- affected 14.1X53 – < 14.1X53-D47
- affected 14.1X53 – < 14.1X53-D130
- affected 15.1 – < 15.1R4-S9, 15.1R6-S6, 15.1R7
- affected 16.1 – < 16.1R3-S9, 16.1R4-S8, 16.1R5-S4, 16.1R6-S3, 16.1R7
- affected 16.2 – < 16.2R2-S5, 16.2R3
- affected 17.1 – < 17.1R1-S7, 17.1R2-S7, 17.1R3
- affected 17.2 – < 17.2R1-S6, 17.2R2-S4, 17.2R3
- affected 17.3 – < 17.3R1-S4, 17.3R2-S2, 17.3R3
- affected 17.4 – < 17.4R1-S3, 17.4R2
- affected 15.1X53 – < 15.1X53-D233
- affected 15.1X53 – < 15.1X53-D471
- affected 15.1X53 – < 15.1X53-D67
- affected 12.3 – < 12.3R12-S10
What to do
Solution: The following software releases have been updated to resolve this specific issue: Junos OS 12.3R12-S10, 12.3X48-D70, 14.1X53-D130*, 14.1X53-D47, 15.1R4-S9, 15.1R6-S6, 15.1R7, 15.1X49-D140, 15.1X53-D233, 15.1X53-D471, 15.1X53-D67, 16.1R3-S9, 16.1R4-S8, 16.1R5-S4, 16.1R6-S3, 16.1R7, 16.2R2-S5, 16.2R3, 17.1R1-S7, 17.1R2-S7, 17.1R3, 17.2R1-S6, 17.2R2-S4, 17.2R3, 17.3R1-S4, 17.3R2-S2, 17.3R3, 17.4R1-S3, 17.4R2, 18.1R1, and all subsequent releases. *Pending Publication
Workaround: There are no viable workarounds for this issue.
Exploitation: Juniper SIRT is not aware of any malicious exploitation of this vulnerability.
References (3)
- https://apps.juniper.net/feature-explorer/search.html#q=dhcp (opens in a new tab)x_refsource_MISCx_transferred
- https://kb.juniper.net/JSA10868 (opens in a new tab)x_refsource_CONFIRMx_transferred
- 1041338 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2018-0034)Record last updated .