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


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
4.48% (91st percentile)

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  • Snyk IDSNYK-DEBIANUNSTABLE-LIBXSLT-473887
  • published19 Oct 2019
  • disclosed18 Oct 2019

Introduced: 18 Oct 2019

CVE-2019-18197  (opens in a new tab)
CWE-416  (opens in a new tab)
CWE-908  (opens in a new tab)

How to fix?

Upgrade Debian:unstable libxslt to version 1.1.32-2.2 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:unstable 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.

CVSS Base Scores

version 3.1