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Use After Free Affecting libxslt package, versions <1.1.32-2.2~deb10u1

0.0
high

Snyk CVSS

    Attack Complexity High
    User Interaction Required
    Confidentiality High
    Integrity High
    Availability High

    Threat Intelligence

    EPSS 0.79% (82nd percentile)
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NVD
7.5 high
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SUSE
7.5 high
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Red Hat
7.5 high

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  • Snyk ID SNYK-DEBIAN10-LIBXSLT-473888
  • published 19 Oct 2019
  • disclosed 18 Oct 2019
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Introduced: 18 Oct 2019

CVE-2019-18197 Open this link in a new tab
CWE-416 Open this link in a new tab
CWE-908 Open this link in a new tab

How to fix?

Upgrade Debian:10 libxslt to version 1.1.32-2.2~deb10u1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libxslt package and not the libxslt package as distributed by Debian. See How to fix? for Debian:10 relevant fixed versions and status.

In xsltCopyText in transform.c in libxslt 1.1.33, a pointer variable isn't reset under certain circumstances. If the relevant memory area happened to be freed and reused in a certain way, a bounds check could fail and memory outside a buffer could be written to, or uninitialized data could be disclosed.

References