What’s Vulnerable › Vulnerabilities

CVE-2018-15518

• Severity: high (CVSS 8.8 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2018-12-26 · updated 2026-06-17
• Weakness: CWE-415

Description

QXmlStream in Qt 5.x before 5.11.3 has a double-free or corruption during parsing of a specially crafted illegal XML document.

Affected products

• Debian Linux: 8.0, 9.0
• openSUSE Leap: 42.3
• Qt: from 5.5.0 before 5.11.3 — fixed in 5.11.3

How to fix

Upgrade to a fixed version: Qt 5.11.3. Check the vendor advisory for mitigations.

References

• http://lists.opensuse.org/opensuse-security-announce/2018-12/msg00066.html
• http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00057.html
• http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00071.html
• http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00073.html
• http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00090.html
• https://access.redhat.com/errata/RHSA-2019:2135
• https://access.redhat.com/errata/RHSA-2019:3390
• https://blog.qt.io/blog/2018/12/04/qt-5-11-3-released-important-security-updates/
• https://blog.qt.io/blog/2018/12/04/qt-5-11-3-released-important-security-updates/
• https://blog.qt.io/blog/2018/12/04/qt-5-11-3-released-important-security-updates/
• https://blog.qt.io/blog/2018/12/04/qt-5-11-3-released-important-security-updates/
• https://codereview.qt-project.org/#/c/236691/

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