RLSA-2021:2569

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RLSA-2021:2569

Summary: Moderate: libxml2 security update

Details: The libxml2 library is a development toolbox providing the implementation of various XML standards. Security Fix(es): * libxml2: Use-after-free in xmlEncodeEntitiesInternal() in entities.c (CVE-2021-3516) * libxml2: Heap-based buffer overflow in xmlEncodeEntitiesInternal() in entities.c (CVE-2021-3517) * libxml2: Use-after-free in xmlXIncludeDoProcess() in xinclude.c (CVE-2021-3518) * libxml2: NULL pointer dereference when post-validating mixed content parsed in recovery mode (CVE-2021-3537) * libxml2: Exponential entity expansion attack bypasses all existing protection mechanisms (CVE-2021-3541) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

References: https://errata.rockylinux.org/RLSA-2021:2569, https://bugzilla.redhat.com/show_bug.cgi?id=1950515, https://bugzilla.redhat.com/show_bug.cgi?id=1954225, https://bugzilla.redhat.com/show_bug.cgi?id=1954232, https://bugzilla.redhat.com/show_bug.cgi?id=1954242, https://bugzilla.redhat.com/show_bug.cgi?id=1956522