NovumOS has Arbitrary Memory Mapping via Syscall 15 (MemoryMapRange)
Résumé
NovumOS has Arbitrary Memory Mapping via Syscall 15 (MemoryMapRange)
Description d'origine
La description telle que publiée par la source (souvent en anglais).
NovumOS is a custom 32-bit operating system written in Zig and x86 Assembly. In versions prior to 0.24, Syscall 15 (MemoryMapRange) allows Ring 3 user-mode processes to map arbitrary virtual address ranges into their address space without validating against forbidden regions, including critical kernel structures such as the IDT, GDT, TSS, and page tables. A local attacker can exploit this to modify kernel interrupt handlers, resulting in privilege escalation from user mode to kernel context. This issue has been fixed in version 0.24.
Source: OSV.dev (Open Source Vulnerabilities) NVD GitHub Advisory OSV
Références
- advisory github.com
- advisory github.com
- advisory nvd.nist.gov
- web github.com