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CVE-2018-15688
Out-of-Bounds write in systemd-networkd dhcpv6 option handling
High8.8EPSS 1.7%
- Published
- Updated
- Reserved
- Assigned by
- canonical
Description
A buffer overflow vulnerability in the dhcp6 client of systemd allows a malicious dhcp6 server to overwrite heap memory in systemd-networkd. Affected releases are systemd: versions up to and including 239.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| canonicalCNA (assigner) | 3.0 | High8.8 | CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Modified | 3.1 | High8.8 | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 1.7% · top 23% of all CVEs (5 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: total
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.8.
Weakness
- dhcp6_option_append_ia() contained an incorrect buffer size calculation.
- CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') (opens in a new tab)All about CWE-120 and its CVEs
Affected products
References (9)
- GLSA-201810-10 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
- [debian-lts-announce] 20181119 [SECURITY] [DLA 1580-1] systemd security update (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- USN-3807-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- USN-3806-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- RHSA-2018:3665 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- 105745 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- https://github.com/systemd/systemd/pull/10518 (opens in a new tab)x_refsource_MISCx_transferred
- RHSA-2019:0049 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHBA-2019:0327 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_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)
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[](https://trackcve.app/cve/CVE-2018-15688)Record last updated .