QEMU (aka Quick Emulator) built with a VMWARE VMXNET3 paravirtual NIC emulator support is vulnerable to crash issue. It could occur while reading Interrupt Mask Registers (IMR). A privileged (CAP_SYS_RAWIO) guest user could use this flaw to crash the QEMU process instance resulting in DoS.
The product contains an assert() or similar statement that can be triggered by an attacker, which leads to an application exit or other behavior that is more severe than necessary.
Link | Tags |
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http://www.securitytracker.com/id/1034575 | vdb entry third party advisory |
http://www.securityfocus.com/bid/79822 | vdb entry third party advisory |
http://www.openwall.com/lists/oss-security/2016/01/04/7 | third party advisory mailing list |
http://www.openwall.com/lists/oss-security/2016/01/04/4 | third party advisory mailing list |
http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=c6048f849c7e3f009786df76206e895 | |
https://bugzilla.redhat.com/show_bug.cgi?id=1270876 | issue tracking |
http://www.debian.org/security/2016/dsa-3471 | third party advisory vendor advisory |
https://security.gentoo.org/glsa/201602-01 | third party advisory vendor advisory |