ID CVE-2016-7908
Summary The mcf_fec_do_tx function in hw/net/mcf_fec.c in QEMU (aka Quick Emulator) does not properly limit the buffer descriptor count when transmitting packets, which allows local guest OS administrators to cause a denial of service (infinite loop and QEMU process crash) via vectors involving a buffer descriptor with a length of 0 and crafted values in bd.flags.
References
Vulnerable Configurations
  • cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*
    cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*
CVSS
Base: 2.1 (as of 01-12-2018 - 11:29)
Impact:
Exploitability:
CWE CWE-399
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 93273
confirm http://git.qemu.org/?p=qemu.git;a=commit;h=070c4b92b8cd5390889716677a0b92444d6e087a
gentoo GLSA-201611-11
mlist
  • [debian-lts-announce] 20181130 [SECURITY] [DLA 1599-1] qemu security update
  • [oss-security] 20161003 CVE request Qemu: net: Infinite loop in mcf_fec_do_tx
  • [oss-security] 20161003 Re: CVE request Qemu: net: Infinite loop in mcf_fec_do_tx
  • [qemu-devel] 20160922 [PATCH v2] net: mcf: limit buffer descriptor count
suse openSUSE-SU-2016:3237
Last major update 01-12-2018 - 11:29
Published 05-10-2016 - 16:59
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