PT-2019-5529 · Xmlsoft+5 · Libxml2+5
Published
2019-12-12
·
Updated
2026-03-13
·
CVE-2020-7595
CVSS v3.1
7.5
High
| Vector | AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Name of the Vulnerable Software and Affected Versions
libxml2 version 2.9.10
Description
The issue is related to the
xmlStringLenDecodeEntities function in the libxml2 library, which can lead to an infinite loop under certain end-of-file conditions. This could allow a remote attacker to cause a denial of service. The Nokogiri RubyGem has patched its vendored copy of libxml2 to prevent this issue from affecting nokogiri.Recommendations
For libxml2 version 2.9.10, consider disabling the
xmlStringLenDecodeEntities function as a temporary workaround until a patch is available. Restrict access to the parser.c file to minimize the risk of exploitation. Avoid using the xmlStringLenDecodeEntities function in certain end-of-file situations until the issue is resolved. At the moment, there is no information about a newer version that contains a fix for this vulnerability.Exploit
Infinite Loop
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Weakness Enumeration
Related Identifiers
Affected Products
Alt Linux
Centos
Red Hat
Suse
Ubuntu
Libxml2