CVE-2021-20257CWE-835

An infinite loop flaw was found in the e1000 NIC emulator of the QEMU

published March 16, 2022

CVSS
—
EPSS
0%
Percentile
29.7
In the wild
Unconfirmed
What it is

An infinite loop flaw was found in the e1000 NIC emulator of the QEMU. This issue occurs while processing transmits (tx) descriptors in process_tx_desc if various descriptor fields are initialized with invalid values. This flaw allows a guest to consume CPU cycles on the host, resulting in a denial of service. The highest threat from this vulnerability is to system availability.

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.00370 · 29.7th percentile
Weakness
CWE-835 · Loop with Unreachable Exit Condition ('Infinite Loop')
Published
2022-03-16T14:12Z
EPSS history
Timeline
  • 16 MAR 14:12Z
    An infinite loop flaw was found in the e1000 NIC emulator of the QEMU
    cvelistv5