CVE-2021-3541
libxml2 - security update
6.5
MEDIUM
CVSS 3.1
EPSS 0.06%
Description
A flaw was found in libxml2. Exponential entity expansion attack its possible bypassing all existing protection mechanisms and leading to denial of service.
How to fix CVE-2021-3541
To remediate CVE-2021-3541, upgrade the affected package to a fixed version below.
- Alpine/libxml2—upgrade to 2.9.12-r0 or later
- Debian/libxml2—upgrade to 2.9.10+dfsg-6.7 or later
- —upgrade to 2.9.4+dfsg1-2.2+deb9u5 or later
Is CVE-2021-3541 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (3)
- from 0, < 2.9.12-r0
- from 0, < 2.9.10+dfsg-6.7
- from 0, < 2.9.4+dfsg1-2.2+deb9u5
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |