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
Patch, Third Party Advisory x_refsource_misc
https://gitlab.gnome.org/GNOME/libxslt/commit/2232473733b7313d67de8836ea3b29eec6e8e285
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
Mailing List vendor-advisory
x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00010.html
Mailing List vendor-advisory
x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00015.html
Vendor Advisory vendor-advisory
x_refsource_redhat
https://access.redhat.com/errata/RHSA-2020:0514
Mailing List vendor-advisory
x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00025.html
Vendor Advisory x_refsource_misc
https://www.oracle.com/security-alerts/cpuapr2020.html
Vendor Advisory x_refsource_confirm
https://security.netapp.com/advisory/ntap-20200416-0004/
Mailing List vendor-advisory
x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00062.html
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