Debian 9 Stretch: DLA-2369-1 Critical: Libxml2 Buffer Overflow Fix

CVE-2017-8872

Global buffer-overflow in the htmlParseTryOrFinish function.

CVE-2017-18258

The xz_head function in libxml2 allows remote attackers to cause a
denial of service (memory consumption) via a crafted LZMA file,
because the decoder functionality does not restrict memory usage to
what is required for a legitimate file.

CVE-2018-14404

A NULL pointer dereference vulnerability exists in the
xpath.c:xmlXPathCompOpEval() function of libxml2 when parsing an
invalid XPath expression in the XPATH_OP_AND or XPATH_OP_OR case.
Applications processing untrusted XSL format inputs may be
vulnerable to a denial of service attack.

CVE-2018-14567

If the option --with-lzma is used, allows remote attackers to cause
a denial of service (infinite loop) via a crafted XML file.

CVE-2019-19956

The xmlParseBalancedChunkMemoryRecover function has a memory leak
related to newDoc->oldNs.

CVE-2019-20388