CVE-2017-2584
arch/x86/kvm/emulate.c in the Linux kernel through 4.9.3 allows local users to obtain sensitive information from kernel memory or cause a denial of service (use-after-free) via a crafted application that leverages instruction emulation for fxrstor,…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.42%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
arch/x86/kvm/emulate.c in the Linux kernel through 4.9.3 allows local users to obtain sensitive information from kernel memory or cause a denial of service (use-after-free) via a crafted application that leverages instruction emulation for fxrstor, fxsave, sgdt, and sidt.
- CVSS 3.0
- 7.1 HIGHCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
- EPSS
- 0.42% probability · 36th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-200, CWE-416
- Affected
- linux/linux kernel
- Source
- secalert@redhat.com
References
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=129a72a0d3c8e139a04512325384fe5ac119e74d
- http://www.debian.org/security/2017/dsa-3791
- http://www.openwall.com/lists/oss-security/2017/01/13/7
- http://www.securityfocus.com/bid/95430
- http://www.securitytracker.com/id/1037603
- https://bugzilla.redhat.com/show_bug.cgi?id=1413001
- https://github.com/torvalds/linux/commit/129a72a0d3c8e139a04512325384fe5ac119e74d
- https://usn.ubuntu.com/3754-1/
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=129a72a0d3c8e139a04512325384fe5ac119e74d
- http://www.debian.org/security/2017/dsa-3791
- http://www.openwall.com/lists/oss-security/2017/01/13/7
- http://www.securityfocus.com/bid/95430
- http://www.securitytracker.com/id/1037603
- https://bugzilla.redhat.com/show_bug.cgi?id=1413001
- https://github.com/torvalds/linux/commit/129a72a0d3c8e139a04512325384fe5ac119e74d
- https://usn.ubuntu.com/3754-1/
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.