Improper Restriction of Recursive Entity References in DTDs ('XML Entity Expansion') Affecting libxml2 package, versions <0:2.9.1-6.amzn2.5.3
Snyk CVSS
Attack Complexity
Low
Availability
High
Threat Intelligence
EPSS
0.08% (35th
percentile)
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk ID SNYK-AMZN2-LIBXML2-1700337
- published 27 Sep 2021
- disclosed 9 Jul 2021
Introduced: 9 Jul 2021
CVE-2021-3541 Open this link in a new tabHow to fix?
Upgrade Amazon-Linux:2
libxml2
to version 0:2.9.1-6.amzn2.5.3 or higher.
This issue was patched in ALAS2-2021-1662
.
NVD Description
Note: Versions mentioned in the description apply only to the upstream libxml2
package and not the libxml2
package as distributed by Amazon-Linux
.
See How to fix?
for Amazon-Linux:2
relevant fixed versions and status.
A flaw was found in libxml2. Exponential entity expansion attack its possible bypassing all existing protection mechanisms and leading to denial of service.