GitHub Advisory DatabaseGHSA-242X-7CM6-4W8JNokogiri affected by libxslt Use of Uninitialized Resource/Use After Free vulnerability
5.1 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
HIGH
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:H/Au:N/C:P/I:P/A:P
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
0.008 Low
EPSS
Percentile
81.7%
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.
Affected configurations
References
lists.opensuse.org/opensuse-security-announce/2020-02/msg00010.html
lists.opensuse.org/opensuse-security-announce/2020-02/msg00015.html
lists.opensuse.org/opensuse-security-announce/2020-02/msg00025.html
lists.opensuse.org/opensuse-security-announce/2020-05/msg00062.html
www.openwall.com/lists/oss-security/2019/11/17/2
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#L934
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
Related
5.1 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
HIGH
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:H/Au:N/C:P/I:P/A:P
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
0.008 Low
EPSS
Percentile
81.7%