CVE-2021-28484

An issue was discovered in the /api/connector endpoint handler in Yubico yubihsm-connector before 3.0.1 (in YubiHSM SDK before 2021.04)

published April 14, 2021

CVSS
—
EPSS
2%
Percentile
74.4
In the wild
Unconfirmed
What it is

An issue was discovered in the /api/connector endpoint handler in Yubico yubihsm-connector before 3.0.1 (in YubiHSM SDK before 2021.04). The handler did not validate the length of the request, which can lead to a state where yubihsm-connector becomes stuck in a loop waiting for the YubiHSM to send it data, preventing any further operations until the yubihsm-connector is restarted. An attacker can send 0, 1, or 2 bytes to trigger this.

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.01521 · 74.4th percentile
Published
2021-04-14T17:07Z
EPSS history
Timeline
  • 14 APR 17:07Z
    An issue was discovered in the /api/connector endpoint handler in Yubico yubihsm-connector before 3.0.1 (in YubiHSM SDK before 2021.04)
    cvelistv5