CVE-2019-13117

MEDIUM5.3EPSS 4.4%

Uninitialized read in Nokogiri gem

Published: 5/24/2022Modified: 4/28/2026

Description

In numbers.c in libxslt 1.1.33, an xsl:number with certain format strings could lead to a uninitialized read in xsltNumberFormatInsertNumbers. This could allow an attacker to discern whether a byte on the stack contains the characters A, a, I, i, or 0, or any other character.

Affected packages (3)

Alpine/libxsltfrom 0, < 1.1.33-r3
Debian/libxsltfrom 0, < 1.1.32-2.1
RubyGems/nokogirifrom 0, < 1.10.5

CVSS scores

Source	Version	Severity	Vector
osv	CVSS 3.1	MEDIUM5.3	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

References (18)

ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2019-13117
ADVISORYhttps://security.alpinelinux.org/vuln/CVE-2019-13117
ADVISORYhttps://security-tracker.debian.org/tracker/CVE-2019-13117
WEBhttp://lists.opensuse.org/opensuse-security-announce/2020-05/msg00062.html
WEBhttps://bugs.chromium.org/p/oss-fuzz/issues/detail?id=14471
WEBhttps://github.com/rubysec/ruby-advisory-db/blob/master/gems/nokogiri/CVE-2019-13117.yml
WEBhttps://github.com/sparklemotion/nokogiri/issues/1943
WEBhttps://gitlab.gnome.org/GNOME/libxslt/commit/c5eb6cf3aba0af048596106ed839b4ae17ecbcb1
WEBhttps://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b@%3Cissues.bookkeeper.apache.org%3E
WEBhttps://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4@%3Cissues.bookkeeper.apache.org%3E
WEBhttps://lists.debian.org/debian-lts-announce/2019/07/msg00020.html
WEBhttps://lists.fedoraproject.org/archives/list/[email protected]/message/IOYJKXPQCUNBMMQJWYXOR6QRUJZHEDRZ
WEBhttps://oss-fuzz.com/testcase-detail/5631739747106816
WEBhttps://security.netapp.com/advisory/ntap-20190806-0004
WEBhttps://security.netapp.com/advisory/ntap-20200122-0003
WEBhttps://usn.ubuntu.com/4164-1
WEBhttps://www.oracle.com/security-alerts/cpujan2020.html
WEBhttp://www.openwall.com/lists/oss-security/2019/11/17/2