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Vulnerability record · CVE-2019-13117 · published 1 July 2019

CVE-2019-13117: Xmlsoft libxslt use of uninitialized resource vulnerability

Xmlsoft · Libxslt

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.

5.3 CVSS 3.1 Medium EPSS 6.5% · top 6.5% CWE-908 · Use of uninitialized resource
5.3CVSS 3.1 base score, v2 5.0
6.5%EPSS exploitation probability, 30 days
NoNot in CISA KEV
6Affected product versions listed by NVD
26References
17 Jun 2026Last modified by NVD

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.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Affected products

6 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00062.html Mailing ListThird Party Advisory
http://www.openwall.com/lists/oss-security/2019/11/17/2 Mailing ListThird Party Advisory
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=14471 Issue TrackingMailing ListThird Party Advisory
https://gitlab.gnome.org/GNOME/libxslt/commit/c5eb6cf3aba0af048596106ed839b4ae17ecbcb1 PatchThird Party Advisory
https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.ap
https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.ap
https://lists.debian.org/debian-lts-announce/2019/07/msg00020.html Mailing ListThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IOYJKXPQCUNBMMQJWYXOR6Q
https://oss-fuzz.com/testcase-detail/5631739747106816 Permissions Required
https://security.netapp.com/advisory/ntap-20190806-0004/ Third Party Advisory
https://security.netapp.com/advisory/ntap-20200122-0003/ Third Party Advisory
https://usn.ubuntu.com/4164-1/ Third Party Advisory
https://www.oracle.com/security-alerts/cpujan2020.html Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00062.html Mailing ListThird Party Advisory
http://www.openwall.com/lists/oss-security/2019/11/17/2 Mailing ListThird Party Advisory
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=14471 Issue TrackingMailing ListThird Party Advisory
https://gitlab.gnome.org/GNOME/libxslt/commit/c5eb6cf3aba0af048596106ed839b4ae17ecbcb1 PatchThird Party Advisory
https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.ap
https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.ap
https://lists.debian.org/debian-lts-announce/2019/07/msg00020.html Mailing ListThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IOYJKXPQCUNBMMQJWYXOR6Q
https://oss-fuzz.com/testcase-detail/5631739747106816 Permissions Required
https://security.netapp.com/advisory/ntap-20190806-0004/ Third Party Advisory
https://security.netapp.com/advisory/ntap-20200122-0003/ Third Party Advisory
https://usn.ubuntu.com/4164-1/ Third Party Advisory
https://www.oracle.com/security-alerts/cpujan2020.html Third Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2019-13117), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.