CVE-2013-0254 – qt: QSharedMemory class created shared memory segments with insecure permissions

https://notcve.org/view.php?id=CVE-2013-0254

The QSharedMemory class in Qt 5.0.0, 4.8.x before 4.8.5, 4.7.x before 4.7.6, and other versions including 4.4.0 uses weak permissions (world-readable and world-writable) for shared memory segments, which allows local users to read sensitive information or modify critical program data, as demonstrated by reading a pixmap being sent to an X server. La clase QSharedMemory en Qt v5.0.0, v4.8.x anterior a v4.8.5, v4.7.x anterior a v4.7.6, y otras versiones incluida la v4.4.0 utiliza permisos débiles (escritura y lectura para todos los usuarios) para segmentos de memoria compartida, lo que permite a usuarios locales leer informacion sensible o modificar datos críticos del programa, como se demostró mediante la lectura de un pixmap enviado al servidor X. • http://lists.opensuse.org/opensuse-updates/2013-03/msg00014.html http://lists.opensuse.org/opensuse-updates/2013-03/msg00015.html http://lists.opensuse.org/opensuse-updates/2013-03/msg00019.html http://lists.qt-project.org/pipermail/announce/2013-February/000023.html http://rhn.redhat.com/errata/RHSA-2013-0669.html https://bugzilla.redhat.com/show_bug.cgi?id=907425 https://access.redhat.com/security/cve/CVE-2013-0254 • CWE-264: Permissions, Privileges, and Access Controls •