The Floppy Disk Controller (FDC) in QEMU, as used in Xen 4.5.x and previous versions and KVM, allows local guest users to cause a denial of service (out-of-bounds write and guest crash) or possibly execute arbitrary code via the (1) FD_CMD_READ_ID, (2) FD_CMD_DRIVE_SPECIFICATION_COMMAND, or other unspecified commands, aka VENOM.
| Vulnerable Product | Search on Vulmon | Subscribe to Product |
|---|---|---|
qemu qemu |
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redhat openstack 4.0 |
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redhat enterprise linux 7.0 |
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redhat enterprise linux 6.0 |
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redhat openstack 5.0 |
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redhat openstack 7.0 |
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redhat enterprise virtualization 3.0 |
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redhat enterprise linux 5 |
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xen xen 4.5.0 |
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redhat openstack 6.0 |
Pastebin is for old hats. Cool black hats use Twitter now
Hackers collectively tripled the production of Proof-of-Concept exploits last year, according to a new study out on Thursday. Researchers and black hats develop proof-of-concept (PoC) exploits for research or demonstration purposes. These PoCs are developed for a various reasons – to demonstrate that software is vulnerable, force a company to develop a critical patch, showcase skills, or, in the most malicious cases, claim ownership of a working exploit that can run on real-world targets. More...
Patch but don't panic
Oracle has released patches for its virtualisation software to crimp the VENOM vulnerability that allows attackers to break out of virtual machines to attack hosts. The company follows a host of others including KVM and Xen which have patched the buffer overflow bug. VMware, Microsoft, and Bochs are immune to the problem. Researcher Jason Geffner of threat intelligence outfit Crowdstrike quietly tipped off vendors including Oracle to VENOM (Virtualised Environment Neglected Operations Manipulati...
Potential deleterious effects more like a snakebite* than a snake bite
Analysis A newly discovered vulnerability in many popular virtual machine platforms is serious, but nowhere near as bad as last year’s Heartbleed vulnerability, according to security experts. Dubbed VENOM (Virtualized Environment Neglected Operations Manipulation), the zero-day flaw takes advantage of the “virtual floppy disk controller” and potentially allows attackers to escape out of the virtual machine and execute malicious code on its host. CrowdStrike, the security intelligence firm ...
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