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Test your applicationsUpgrade Debian:11
libxml2
to version 2.9.10+dfsg-6.7+deb11u6 or higher.
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:11
relevant fixed versions and status.
libxml2 before 2.12.10 and 2.13.x before 2.13.6 has a stack-based buffer overflow in xmlSnprintfElements in valid.c. To exploit this, DTD validation must occur for an untrusted document or untrusted DTD. NOTE: this is similar to CVE-2017-9047.