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.
Source: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-7908
Reference (s):
- BID:93273
- URL: http://www.securityfocus.com/bid/93273
- http://git.qemu.org/?p=qemu.git;a=commit;h=070c4b92b8cd5390889716677a0b92444d6e087a
- GENTOO:GLSA-201611-11
- URL: https://security.gentoo.org/glsa/201611-11