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CVE-2018-14642
An information leak vulnerability was found in Undertow. If all headers are not written out in the first write() call then the code that…
Medium5.3EPSS 2.1%
- Published
- Updated
- Reserved
- Assigned by
- redhat
Description
An information leak vulnerability was found in Undertow. If all headers are not written out in the first write() call then the code that handles flushing the buffer will always write out the full contents of the writevBuffer buffer, which may contain data from previous requests.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| redhatCNA (assigner) | 3.0 | Medium5.3 | CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N |
| NVDNVD · Modified | 3.1 | Medium5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |
- EPSS (exploitation in 30 days)
- 2.1% · top 18% of all CVEs (6 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.3.
Weakness
Affected products
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- Mavenio.undertow:undertow-coreGHSA-vf6r-mmhc-3xcm (opens in a new tab)
References (9)
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14642 (opens in a new tab)x_refsource_CONFIRMx_transferred
- RHSA-2019:0364 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2019:0362 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2019:0365 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2019:0380 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2019:1107 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2019:1108 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2019:1106 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2019:1140 (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 Advisory GHSA-vf6r-mmhc-3xcm (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
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[](https://trackcve.app/cve/CVE-2018-14642)Record last updated .