PT-2016-3342 · Xmlsoft+5 · Libxml2+5
Nick Wellnhofer
·
Published
2016-09-25
·
Updated
2026-03-13
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CVE-2016-4658
CVSS v2.0
10
Critical
| Vector | AV:N/AC:L/Au:N/C:C/I:C/A:C |
Name of the Vulnerable Software and Affected Versions
libxml2 versions prior to 2.9.5
Description
The issue allows remote attackers to execute arbitrary code or cause a denial of service due to a use-after-free and memory corruption via a crafted XML document. This is because namespace nodes in XPointer ranges are not forbidden. The vulnerability may also lead to memory buffer overflow, potentially affecting the confidentiality, integrity, and availability of protected information.
Recommendations
For libxml2 versions prior to 2.9.5, update to version 2.9.5 or later to resolve the issue. As a temporary workaround, consider restricting the use of XPointer ranges in XML documents to minimize the risk of exploitation. Avoid using crafted XML documents that may trigger the use-after-free and memory corruption until the issue is resolved.
Fix
DoS
RCE
Buffer Overflow
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Weakness Enumeration
Related Identifiers
Affected Products
Alt Linux
Centos
Red Hat
Suse
Ubuntu
Libxml2