CVE-2019-18197

HIGH

libxslt 1.1.33 - Use-After-Free in xsltCopyText

Title source: llm
STIX 2.1

Description

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 (15)

Core 15
Core References
Issue Tracking, Third Party Advisory x_refsource_misc
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=15914
Issue Tracking, Third Party Advisory x_refsource_misc
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=15768
Issue Tracking, Third Party Advisory x_refsource_misc
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=15746
Third Party Advisory vendor-advisory x_refsource_ubuntu
https://usn.ubuntu.com/4164-1/
Third Party Advisory mailing-list x_refsource_mlist
https://lists.debian.org/debian-lts-announce/2019/10/msg00037.html
Third Party Advisory x_refsource_confirm
https://security.netapp.com/advisory/ntap-20191031-0004/
Mailing List, Third Party Advisory mailing-list x_refsource_mlist
http://www.openwall.com/lists/oss-security/2019/11/17/2
Vendor Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2020:0514
Vendor Advisory x_refsource_confirm
https://security.netapp.com/advisory/ntap-20200416-0004/

Scores

CVSS v3 7.5
EPSS 0.0453
EPSS Percentile 89.3%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

Details

CWE
CWE-416 CWE-908
Status published
Products (9)
canonical/ubuntu_linux 12.04
canonical/ubuntu_linux 14.04
canonical/ubuntu_linux 16.04
canonical/ubuntu_linux 18.04
canonical/ubuntu_linux 19.04
canonical/ubuntu_linux 19.10
debian/debian_linux 8.0
rubygems/nokogiri 0 - 1.10.5RubyGems
xmlsoft/libxslt 1.1.33
Published Oct 18, 2019
Tracked Since Feb 18, 2026