Improper Restriction of Recursive Entity References in DTDs ('XML Entity Expansion') Affecting libxml2 package, versions <2.9.4+dfsg1-2.2+deb9u5
Snyk CVSS
Attack Complexity
Low
Availability
High
Threat Intelligence
EPSS
0.08% (34th
percentile)
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Test your applications- Snyk ID SNYK-DEBIAN9-LIBXML2-1293203
- published 16 May 2021
- disclosed 9 Jul 2021
Introduced: 16 May 2021
CVE-2021-3541 Open this link in a new tabHow to fix?
Upgrade Debian:9
libxml2
to version 2.9.4+dfsg1-2.2+deb9u5 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream libxml2
package and not the libxml2
package as distributed by Debian
.
See How to fix?
for Debian:9
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.