CVE-2021-20255
09.03.2021, 20:15
A stack overflow via an infinite recursion vulnerability was found in the eepro100 i8255x device emulator of QEMU. This issue occurs while processing controller commands due to a DMA reentry issue. This flaw allows a guest user or process to consume CPU cycles or crash the QEMU process on the host, resulting in a denial of service. The highest threat from this vulnerability is to system availability.
| Vendor | Product | Version |
|---|---|---|
| qemu | qemu | * |
| debian | debian_linux | 9.0 |
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= Vulnerable software versions
Debian Releases
Ubuntu Releases
Ubuntu Product | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| qemu |
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| qemu-kvm |
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Common Weakness Enumeration
- CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')The program contains an iteration or loop with an exit condition that cannot be reached, i.e., an infinite loop.
- CWE-674 - Uncontrolled RecursionThe product does not properly control the amount of recursion which takes place, consuming excessive resources, such as allocated memory or the program stack.
References