What is CVE-2019-13117?

CVE-2019-13117 is a medium-severity vulnerability in Oracle Openjdk, classified under Use of Uninitialized Resource. CVSS score: 5.3/10. Published 2019-07-01.

How severe is CVE-2019-13117?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Vulnerability in Oracle Openjdk

CVE-2019-13117

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.

Published 2019-07-01 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.063 (93.6th percentile), scored 2026-10-22.

Low probability of exploitation in the next 30 days, but still tracked. 94th percentile — 93.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.065 · newest: 0.063 · change: -0.002

Affected products

Oracle Openjdk — versions 8
Xmlsoft Libxslt — versions 1.1.33
Canonical Ubuntu Linux — versions 12.04, 14.04, 16.04
Debian Linux — versions 8.0
Fedoraproject Fedora — versions 31
openSUSE Leap — versions 15.1

Weakness classification (CWE)

CWE-908 — Use of Uninitialized Resource

References

gitlab.gnome.org/GNOME/libxslt/commit/c5eb6cf3aba0af048596106ed839b4ae17ecbcb1 (Patch, Third Party Advisory)
oss-fuzz.com/testcase-detail/5631739747106816 (Permissions Required)
bugs.chromium.org/p/oss-fuzz/issues/detail (Mailing List, Third Party Advisory, Issue Tracking)
lists.debian.org/debian-lts-announce/2019/07/msg00020.html (mailing-list, Mailing List, Third Party Advisory)
security.netapp.com/advisory/ntap-20190806-0004/ (Third Party Advisory)
usn.ubuntu.com/4164-1/ (vendor-advisory, Third Party Advisory)
lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
www.openwall.com/lists/oss-security/2019/11/17/2 (mailing-list, Mailing List, Third Party Advisory)
www.oracle.com/security-alerts/cpujan2020.html (Third Party Advisory)
security.netapp.com/advisory/ntap-20200122-0003/ (Third Party Advisory)

Frequently asked questions

What is CVE-2019-13117?: CVE-2019-13117 is a medium-severity vulnerability in Oracle Openjdk, classified under Use of Uninitialized Resource. CVSS score: 5.3/10. Published 2019-07-01.
How severe is CVE-2019-13117?: Medium severity. CVSS v3 base score is 5.3 out of 10.