The i386_set_ldt system call in NetBSD 1.5 and earlier, and OpenBSD
2.8 and earlier, when the USER_LDT kernel option is enabled, does not
validate a call gate target, which allows local users to gain root
privileges by creating a segment call gate in the Local Descriptor
Table (LDT) with a target that specifies an arbitrary kernel address.
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disclosed, or updated in CVE.
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