ID CVE-2016-2197
Summary QEMU (aka Quick Emulator) built with an IDE AHCI emulation support is vulnerable to a null pointer dereference flaw. It occurs while unmapping the Frame Information Structure (FIS) and Command List Block (CLB) entries. A privileged user inside guest could use this flaw to crash the QEMU process instance resulting in DoS.
References
Vulnerable Configurations
  • cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*
    cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*
CVSS
Base: 2.1 (as of 01-07-2017 - 01:29)
Impact:
Exploitability:
CWE CWE-476
CAPEC
Access
VectorComplexityAuthentication
LOCAL LOW NONE
Impact
ConfidentialityIntegrityAvailability
NONE NONE PARTIAL
cvss-vector via4 AV:L/AC:L/Au:N/C:N/I:N/A:P
refmap via4
bid 82235
confirm https://bugzilla.redhat.com/show_bug.cgi?id=1302057
gentoo GLSA-201604-01
mlist
  • [qemu-devel] 20160128 [PATCH v2] ide: ahci: add check before calling dma_memory_unmap
  • [qemu-devel] 20160129 CVE request Qemu: ide: ahci null pointer dereference when using FIS CLB engines
  • [qemu-devel] 20160130 Re: CVE request Qemu: ide: ahci null pointer dereference when using FIS CLB engines
Last major update 01-07-2017 - 01:29
Published 29-12-2016 - 22:59
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