CVE-2019-18197: Nokogiri affected by libxslt Use of Uninitialized Resource/Use After Free vulnerability
(updated )
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.
Nokogiri prior to version 1.10.5 contains a vulnerable version of libxslt. Nokogiri version 1.10.5 upgrades the dependency to libxslt 1.1.34, which contains a patch for this issue.
References
- access.redhat.com/errata/RHSA-2020:0514
- bugs.chromium.org/p/oss-fuzz/issues/detail?id=15746
- bugs.chromium.org/p/oss-fuzz/issues/detail?id=15768
- bugs.chromium.org/p/oss-fuzz/issues/detail?id=15914
- github.com/advisories/GHSA-242x-7cm6-4w8j
- github.com/rubysec/ruby-advisory-db/blob/master/gems/nokogiri/CVE-2019-18197.yml
- github.com/sparklemotion/nokogiri/blob/01ab95f3e37429ed8d3b380a8d2f73902eb325d9/CHANGELOG.md?plain=1
- github.com/sparklemotion/nokogiri/issues/1943
- gitlab.gnome.org/GNOME/libxslt/commit/2232473733b7313d67de8836ea3b29eec6e8e285
- lists.debian.org/debian-lts-announce/2019/10/msg00037.html
- nvd.nist.gov/vuln/detail/CVE-2019-18197
- security.netapp.com/advisory/ntap-20191031-0004
- security.netapp.com/advisory/ntap-20200416-0004
- usn.ubuntu.com/4164-1
- www.oracle.com/security-alerts/cpuapr2020.html
Code Behaviors & Features
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