The remote CentOS Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2020:1190 advisory.

  - The xz_decomp function in xzlib.c in libxml2 2.9.1 does not properly detect compression errors, which     allows context-dependent attackers to cause a denial of service (process hang) via crafted XML data.
    (CVE-2015-8035)

  - Use-after-free vulnerability in libxml2 through 2.9.4, as used in Google Chrome before 52.0.2743.82,     allows remote attackers to cause a denial of service or possibly have unspecified other impact via vectors     related to the XPointer range-to function. (CVE-2016-5131)

  - Use after free in libxml2 before 2.9.5, as used in Google Chrome prior to 63.0.3239.84 and other products,     allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (CVE-2017-15412)

  - The xz_head function in xzlib.c in libxml2 before 2.9.6 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-2017-18258)

  - A NULL pointer dereference vulnerability exists in the xpath.c:xmlXPathCompOpEval() function of libxml2     through 2.9.8 when parsing an invalid XPath expression in the XPATH_OP_AND or XPATH_OP_OR case.
    Applications processing untrusted XSL format inputs with the use of the libxml2 library may be vulnerable     to a denial of service attack due to a crash of the application. (CVE-2018-14404)

  - libxml2 2.9.8, if --with-lzma is used, allows remote attackers to cause a denial of service (infinite     loop) via a crafted XML file that triggers LZMA_MEMLIMIT_ERROR, as demonstrated by xmllint, a different     vulnerability than CVE-2015-8035 and CVE-2018-9251. (CVE-2018-14567)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Detections

Analytics

CentOS 7 : libxml2 (RHSA-2020:1190)

high Nessus Plugin ID 135358

Version 1.4