CVE-2018-14642
MEDIUM5.3EPSS 0.71%Exposure of Sensitive Information to an Unauthorized Actor in Undertow
Published: 5/13/2022Modified: 4/28/2026
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.
Affected packages (2)
- Debian/undertowfrom 0, < 2.0.23-1
- Maven/io.undertow:undertow-corefrom 0, < 2.0.19.FINAL
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |
References (11)
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2018-14642
- ADVISORYhttps://security-tracker.debian.org/tracker/CVE-2018-14642
- WEBhttps://access.redhat.com/errata/RHSA-2019:0362
- WEBhttps://access.redhat.com/errata/RHSA-2019:0364
- WEBhttps://access.redhat.com/errata/RHSA-2019:0365
- WEBhttps://access.redhat.com/errata/RHSA-2019:0380
- WEBhttps://access.redhat.com/errata/RHSA-2019:1106
- WEBhttps://access.redhat.com/errata/RHSA-2019:1107
- WEBhttps://access.redhat.com/errata/RHSA-2019:1108
- WEBhttps://access.redhat.com/errata/RHSA-2019:1140
- WEBhttps://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14642