ELA-1585-1 qtbase-opensource-src security update

XML Entity Expansion

2025-11-29
Packageqtbase-opensource-src
Version5.7.1+dfsg-3+deb9u6 (stretch)
Related CVEs CVE-2015-9541


An exponential XML entity expansion was discovered in Qt, a cross-platform C++ application framework. A crafted SVG document was mishandled in QXmlStreamReader and would cause a denial of service, a related issue to CVE 2003-1564 (“billion laughs attack”).



For Debian 9 stretch, these problems have been fixed in version 5.7.1+dfsg-3+deb9u6.

We recommend that you upgrade your qtbase-opensource-src packages.

Further information about Extended LTS security advisories can be found in the dedicated section of our website.