CVE-2017-16931
libxml2 - security update
9.8
CRITICAL
CVSS 3.1
EPSS 1.4%
Description
parser.c in libxml2 before 2.9.5 mishandles parameter-entity references because the NEXTL macro calls the xmlParserHandlePEReference function in the case of a '%' character in a DTD name.
How to fix CVE-2017-16931
To remediate CVE-2017-16931, upgrade the affected package to a fixed version below.
- Alpine/libxml2—upgrade to 2.9.5-r0 or later
- Debian/libxml2—upgrade to 2.9.4+dfsg1-3.1 or later
- —upgrade to 2.8.0+dfsg1-7+wheezy11 or later
Is CVE-2017-16931 being exploited?
Low — EPSS is 1.4%, meaning exploitation activity has not been observed at scale.
Affected packages (3)
- from 0, < 2.9.5-r0
- from 0, < 2.9.4+dfsg1-3.1
- from 0, < 2.8.0+dfsg1-7+wheezy11
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.8 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |