CVE-2015-5675

Related Files

FreeBSD Security Advisory - IRET Handler Privilege Escalation

Posted Aug 26, 2015

Site security.freebsd.org

FreeBSD Security Advisory - If the kernel-mode IRET instruction generates an #SS or #NP exception, but the exception handler does not properly ensure that the right GS register base for kernel is reloaded, the userland GS segment may be used in the context of the kernel exception handler. By causing an IRET with #SS or #NP exceptions, a local attacker can cause the kernel to use an arbitrary GS base, which may allow escalated privileges or panic the system.

tags | advisory, arbitrary, kernel, local

systems | freebsd

advisories | CVE-2015-5675

SHA-256 | c96f042a2e1f79016cee3228dd1a6dccfd18fcba578117e9a03af878aee5caf1

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