CVE-2013-4511: Multiple integer overflows in Alchemy LCD frame-buffer drivers in the Linux kernel before 3.12 allow local...

Security readout for executives and security teams

CVE-2013-4511 is a Linux kernel local privilege escalation flaw in specific Alchemy LCD frame-buffer drivers. A local user could abuse integer overflows in mmap handling to obtain read-write access to kernel memory and gain elevated privileges. The source bundle shows fixes landed before Linux 3.12 and in vendor advisories. Exposure appears limited to Linux systems running kernels before 3.12 with the Alchemy LCD frame-buffer drivers present and reachable by local users. Ubuntu and openSUSE advisories indicate distribution kernel updates addressed it. The source bundle does not provide a complete affected version or platform inventory. Treat as high priority for legacy Linux and embedded estates. It is not currently evidenced as actively exploited, but the impact is full local privilege escalation. Internet-facing risk is indirect, depending on whether an attacker can first obtain local execution. Mitigation focus: Upgrade to Linux kernel 3.12 or a vendor-patched kernel package.; Review Ubuntu and openSUSE advisories for distribution-specific fixed packages.; Prioritize legacy systems that still run pre-3.12 kernels..

Prepared

Jun 14, 2026, 15:13 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.