QXmlStream in Qt 5.x before 5.11.3 has a double-free or corruption during parsing of a…
Priority MEDIUM 43CWE-415Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-415 and the CVSS impact.
Summary
QXmlStream in Qt 5.x before 5.11.3 has a double-free or corruption during parsing of a specially crafted illegal XML document.
Why it matters now
EPSS 0.02502 84th percentileScored 2026-11-07
Fix Fixed Red Hat: 3 advisories
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:qt:qt:*:*:*:*:*:*:*:* | 5.5.0 to before 5.11.3 | Vulnerable | qt |
| cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* | 8.0 | Vulnerable | Debian |
| cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* | 9.0 | Vulnerable | Debian |
| cpe:2.3:o:opensuse:leap:42.3:*:*:*:*:*:*:* | 42.3 | Vulnerable | openSUSE |
- cpe:2.3:a:qt:qt:*:*:*:*:*:*:*:* Versions 5.5.0 to before 5.11.3 Vulnerable ·qt
- cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Debian
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* Versions 9.0 Vulnerable ·Debian
- cpe:2.3:o:opensuse:leap:42.3:*:*:*:*:*:*:* Versions 42.3 Vulnerable ·openSUSE
Remediation
Red Hat 3 advisories
- RHSA-2020:1172 Released 2020-03-31 · Red Hat rating Moderateqt security update
- Red Hat Enterprise Linux Client (v. 7) qt-1:4.8.7-8.el7, qt-mysql-1:4.8.7-8.el7, qt-x11-1:4.8.7-8.el7
- Red Hat Enterprise Linux Client Optional (v. 7) qt-assistant-1:4.8.7-8.el7, qt-config-1:4.8.7-8.el7, qt-demos-1:4.8.7-8.el7 +8
- Red Hat Enterprise Linux ComputeNode (v. 7) qt-1:4.8.7-8.el7, qt-x11-1:4.8.7-8.el7
- Red Hat Enterprise Linux ComputeNode Optional (v. 7) qt-assistant-1:4.8.7-8.el7, qt-config-1:4.8.7-8.el7, qt-demos-1:4.8.7-8.el7 +9
- Red Hat Enterprise Linux Server (v. 7) qt-1:4.8.7-8.el7, qt-1:4.8.7-8.el7.ppc, qt-devel-1:4.8.7-8.el7 +9
- Red Hat Enterprise Linux Server Optional (v. 7) qt-assistant-1:4.8.7-8.el7, qt-config-1:4.8.7-8.el7, qt-demos-1:4.8.7-8.el7 +5
- Red Hat Enterprise Linux Workstation (v. 7) qt-1:4.8.7-8.el7, qt-devel-1:4.8.7-8.el7, qt-mysql-1:4.8.7-8.el7 +3
- Red Hat Enterprise Linux Workstation Optional (v. 7) qt-assistant-1:4.8.7-8.el7, qt-config-1:4.8.7-8.el7, qt-demos-1:4.8.7-8.el7 +5
- RHSA-2019:3390 Released 2019-11-05 · Red Hat rating Moderateqt5-qtbase security and bug fix update
- Red Hat CodeReady Linux Builder (v. 8) qt5-qtbase-static-5.11.1-7.el8, qt5-qttools-static-5.11.1-9.el8
- Red Hat Enterprise Linux AppStream (v. 8) qt5-assistant-5.11.1-9.el8, qt5-designer-5.11.1-9.el8, qt5-doctools-5.11.1-9.el8 +17
- RHSA-2019:2135 Released 2019-08-06 · Red Hat rating Moderateqt5 security, bug fix, and enhancement update
- Red Hat Enterprise Linux Client (v. 7) qt5-qtbase-5.9.7-2.el7, qt5-qtbase-common-5.9.7-2.el7, qt5-qtbase-gui-5.9.7-2.el7
- Red Hat Enterprise Linux Client Optional (v. 7) qt5-assistant-5.9.7-1.el7, qt5-designer-5.9.7-1.el7, qt5-doctools-5.9.7-1.el7 +28
- Red Hat Enterprise Linux ComputeNode Optional (v. 7) qt5-assistant-5.9.7-1.el7, qt5-designer-5.9.7-1.el7, qt5-doctools-5.9.7-1.el7 +31
- Red Hat Enterprise Linux Server (v. 7) qt5-designer-5.9.7-1.el7, qt5-designer-5.9.7-1.el7.ppc, qt5-doctools-5.9.7-1.el7 +47
- Red Hat Enterprise Linux Server Optional (v. 7) qt5-assistant-5.9.7-1.el7, qt5-qdbusviewer-5.9.7-1.el7, qt5-qt3d-doc-5.9.7-1.el7 +47
- Red Hat Enterprise Linux Workstation (v. 7) qt5-designer-5.9.7-1.el7, qt5-doctools-5.9.7-1.el7, qt5-linguist-5.9.7-1.el7 +47
- Red Hat Enterprise Linux Workstation Optional (v. 7) qt5-assistant-5.9.7-1.el7, qt5-qdbusviewer-5.9.7-1.el7, qt5-qt3d-doc-5.9.7-1.el7 +46
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat CodeReady Linux Builder (v. 8) | Fixed | RHSA-2019:3390 |
| Red Hat Enterprise Linux AppStream (v. 8) | Fixed | RHSA-2019:3390 |
| Red Hat Enterprise Linux Client (v. 7) | Fixed | RHSA-2019:2135, RHSA-2020:1172 |
| Red Hat Enterprise Linux Client Optional (v. 7) | Fixed | RHSA-2019:2135, RHSA-2020:1172 |
| Red Hat Enterprise Linux ComputeNode (v. 7) | Fixed | RHSA-2020:1172 |
| Red Hat Enterprise Linux ComputeNode Optional (v. 7) | Fixed | RHSA-2019:2135, RHSA-2020:1172 |
| Red Hat Enterprise Linux Server (v. 7) | Fixed | RHSA-2019:2135, RHSA-2020:1172 |
| Red Hat Enterprise Linux Server Optional (v. 7) | Fixed | RHSA-2019:2135, RHSA-2020:1172 |
| Red Hat Enterprise Linux Workstation (v. 7) | Fixed | RHSA-2019:2135, RHSA-2020:1172 |
| Red Hat Enterprise Linux Workstation Optional (v. 7) | Fixed | RHSA-2019:2135, RHSA-2020:1172 |
Timeline
- 2026-10-02 Threatist record created from CVE-2018-15518
- 2026-10-03 Alias added: GHSA-c7ch-mq2w-rh37
References
Advisory 10
- DSA-4374
- [debian-lts-announce] 20190103 [SECURITY] [DLA 1627-1] qtbase-opensource-src security update
- https://blog.qt.io/blog/2018/12/04/qt-5-11-3-released-important-security-updates/
- USN-4003-1
- RHSA-2019:2135
- RHSA-2019:3390
- openSUSE-SU-2020:1452
- openSUSE-SU-2020:1500
- openSUSE-SU-2020:1501
- openSUSE-SU-2020:1530
Sources
- CVE-2018-15518 · CVE Program
- CVE-2018-15518 · NVD
- FIRST EPSS
- GHSA-c7ch-mq2w-rh37 · GitHub Advisory Database · CC BY 4.0
- CVE-2018-15518 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences