PT-2018-2348 · Libxml2+5 · Libxml2+5
Sam Fowler
·
Publicado
2018-06-18
·
Atualizado
2026-03-13
·
CVE-2018-14404
CVSS v3.1
7.5
Alta
| Vetor | 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 versions prior to 2.9.9
Description
The issue is related to a NULL pointer dereference vulnerability in the
xpath.c:xmlXPathCompOpEval() function of libxml2. This vulnerability can be exploited by a remote attacker, allowing them to cause a denial of service. The vulnerability occurs when parsing an invalid XPath expression in the XPATH OP AND or XPATH OP OR case. Applications that process untrusted XSL format inputs using the libxml2 library may be vulnerable to a denial of service attack due to a crash of the application.Recommendations
For libxml2 versions prior to 2.9.9, update to version 2.9.9 or later to resolve the issue.
As a temporary workaround, consider restricting the use of the
xpath.c:xmlXPathCompOpEval() function when parsing untrusted XSL format inputs until a patch is available.Exploit
Correção
DoS
NULL Pointer Dereference
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Enumeração de Fraquezas
Identificadores relacionados
Produtos afetados
Alt Linux
Centos
Red Hat
Suse
Ubuntu
Libxml2