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Stack-based Buffer Overflow Affecting libxml2-python package, versions *

low

Snyk CVSS

    Attack Complexity High

    Threat Intelligence

    EPSS 0.29% (69th percentile)
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NVD
7.5 high
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Red Hat
4.8 medium

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  • Snyk ID SNYK-CENTOS7-LIBXML2PYTHON-1987699
  • published 26 Jul 2021
  • disclosed 15 May 2017
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Introduced: 15 May 2017

CVE-2017-9048 Open this link in a new tab
CWE-121 Open this link in a new tab

How to fix?

There is no fixed version for Centos:7 libxml2-python.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libxml2-python package and not the libxml2-python package as distributed by Centos. See How to fix? for Centos:7 relevant fixed versions and status.

libxml2 20904-GITv2.9.4-16-g0741801 is vulnerable to a stack-based buffer overflow. The function xmlSnprintfElementContent in valid.c is supposed to recursively dump the element content definition into a char buffer 'buf' of size 'size'. At the end of the routine, the function may strcat two more characters without checking whether the current strlen(buf) + 2 < size. This vulnerability causes programs that use libxml2, such as PHP, to crash.