| Description: | Summary:
The remote host is missing an update for the Debian 'libxml2' package(s) announced via the DLA-2369-1 advisory.
Vulnerability Insight:
Several security vulnerabilities were corrected in libxml2, the GNOME XML library.
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
A memory leak was found in the xmlSchemaValidateStream function of libxml2. Applications that use this library may be vulnerable to memory not being freed leading to a denial of service.
CVE-2020-7595
Infinite loop in xmlStringLenDecodeEntities can cause a denial of service.
CVE-2020-24977
Out-of-bounds read restricted to xmllint --htmlout.
For Debian 9 stretch, these problems have been fixed in version 2.9.4+dfsg1-2.2+deb9u3.
We recommend that you upgrade your libxml2 packages.
For the detailed security status of libxml2 please refer to its security tracker page at: [link moved to references]
Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: [link moved to references]
Affected Software/OS:
'libxml2' package(s) on Debian 9.
Solution:
Please install the updated package(s).
CVSS Score:
6.4
CVSS Vector:
AV:N/AC:L/Au:N/C:P/I:N/A:P
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