Source: qt6-5compat Version: 6.10.2-3 Severity: important Tags: security upstream X-Debbugs-Cc: [email protected], Debian Security Team <[email protected]> Control: clone -1 -2 Control: reassign -2 src:qtbase-opensource-src 5.15.19+dfsg-3 Control: retitle -2 qtbase-opensource-src: CVE-2026-9499
Hi, The following vulnerability was published for Qt5Compat module from Qt. CVE-2026-9499[0]: | An out-of-bounds read (buffer over-read) vulnerability exists in | QTextCodec::codecForName() in Qt. When the function is called with a | QByteArray that is not NUL-terminated (for example, one created with | QByteArray::fromRawData()), the codec-name matching routine reads | past the end of the supplied buffer. In most cases this results in | an incorrect text codec being selected; in the worst case, if the | over-read reaches unmapped memory, the process crashes (denial of | service). The over-read is bounded by the length of the longest | codec-name candidate, and the out-of-bounds bytes are only compared | internally against Qt's fixed list of codec names, so no data is | disclosed to an attacker. Applications that do not pass non-NUL- | terminated QByteArrays to QTextCodec::codecForName() are not | exposed. The affected code resides in the Qt5Compat module from Qt | 6.0.0 onward, and in Qt Core (qtbase) in Qt 4.x and Qt 5.x. If you fix the vulnerability please also make sure to include the CVE (Common Vulnerabilities & Exposures) id in your changelog entry. For further information see: [0] https://security-tracker.debian.org/tracker/CVE-2026-9499 https://www.cve.org/CVERecord?id=CVE-2026-9499 Please adjust the affected versions in the BTS as needed. -- System Information: Debian Release: forky/sid APT prefers unstable APT policy: (500, 'unstable'), (1, 'experimental') Architecture: amd64 (x86_64) Kernel: Linux 7.1.3+deb14-amd64 (SMP w/8 CPU threads; PREEMPT) Locale: LANG=C.UTF-8, LC_CTYPE=C.UTF-8 (charmap=UTF-8), LANGUAGE not set Shell: /bin/sh linked to /usr/bin/dash Init: systemd (via /run/systemd/system) LSM: AppArmor: enabled
