CVE-2019-13117
MEDIUMCVSS 5.3/10EPSS 6.46%
Last modified
CVE-2019-13117 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. 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.. EPSS estimates a 6.46% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions | Update |
|---|---|---|---|
| Xmlsoft | Libxslt | 1.1.33 | — |
| Debian | Debian Linux | 8.0 | — |
| Canonical | Ubuntu Linux | 12.04 | — |
| Canonical | Ubuntu Linux | 14.04 | — |
| Canonical | Ubuntu Linux | 16.04 | — |
| Canonical | Ubuntu Linux | 18.04 | — |
| Canonical | Ubuntu Linux | 19.04 | — |
| Canonical | Ubuntu Linux | 19.10 | — |
| Fedoraproject | Fedora | 31 | — |
| Opensuse | Leap | 15.1 | — |
| Oracle | Openjdk | 8 | Update231 |
References
- http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00062.htmlMailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2019/11/17/2Mailing List, Third Party Advisory
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=14471Issue Tracking, Mailing List, Third Party Advisory
- https://gitlab.gnome.org/GNOME/libxslt/commit/c5eb6cf3aba0af048596106ed839b4ae17ecbcb1Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/07/msg00020.htmlMailing List, Third Party Advisory
- https://oss-fuzz.com/testcase-detail/5631739747106816Permissions 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.htmlThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00062.htmlMailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2019/11/17/2Mailing List, Third Party Advisory
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=14471Issue Tracking, Mailing List, Third Party Advisory
- https://gitlab.gnome.org/GNOME/libxslt/commit/c5eb6cf3aba0af048596106ed839b4ae17ecbcb1Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/07/msg00020.htmlMailing List, Third Party Advisory
- https://oss-fuzz.com/testcase-detail/5631739747106816Permissions 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.htmlThird Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is 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.
How severe is CVE-2019-13117?
CVE-2019-13117 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 6.46% probability of exploitation in the next 30 days.
How do I fix CVE-2019-13117?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2019-13117?
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