Linuxsecurity Out-of-Bounds Read Vulnerabilities in Oracle Linux 9 and 10
Article Content
- •CVE-2026-9499 affects Oracle Linux 9 and 10, allowing potential memory leaks.
- •Patches are available for qt5-qtbase and qt6-qt5compat packages.
- •No active exploitation reported, but proof-of-concept code exists.
Oracle has released patches for significant out-of-bounds read vulnerabilities affecting Oracle Linux 9 and 10. Both vulnerabilities, identified as CVE-2026-9499, impact the QTextCodec::codecForName() function, potentially allowing attackers to read sensitive memory locations. The vulnerabilities were disclosed on July 21, 2026, and affect multiple packages in both Linux distributions. The patches include updates for qt5-qtbase in Oracle Linux 9 and qt6-qt5compat in Oracle Linux 10. Users are urged to apply the updates to mitigate potential exploitation. The vulnerabilities are not currently reported as actively exploited in the wild, but the existence of proof-of-concept code raises concerns. Organizations using these versions should prioritize patching to secure their systems.
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