Entreprise française de cybersécurité depuis 2004
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☎ 03 60 47 09 81 - info@securiteinfo.com
An issue was discovered in the Linux kernel before 6.5.9, exploitable by local users with userspace access to MMIO registers. Incorrect access checking in the #VC handler and instruction emulation of the SEV-ES emulation of MMIO accesses could lead to arbitrary write access to kernel memory (and thus privilege escalation). This depends on a race condition through which userspace can replace an instruction before the #VC handler reads it.
- https://bugzilla.suse.com/show_bug.cgi?id=1212649
- https://github.com/Freax13/cve-2023-46813-poc
- https://github.com/nomi-sec/PoC-in-GitHub
- https://github.com/shakyaraj9569/Documentation