CVE-2021-27217

An issue was discovered in the _send_secure_msg() function of Yubico yubihsm-shell through 2.0.3

published March 4, 2021

CVSS
—
EPSS
2%
Percentile
75.5
In the wild
Unconfirmed
What it is

An issue was discovered in the _send_secure_msg() function of Yubico yubihsm-shell through 2.0.3. The function does not correctly validate the embedded length field of an authenticated message received from the device. Out-of-bounds reads performed by aes_remove_padding() can crash the running process, depending on the memory layout. This could be used by an attacker to cause a client-side denial of service. The yubihsm-shell project is included in the YubiHSM 2 SDK product.

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.01595 · 75.5th percentile
Published
2021-03-04T17:45Z
EPSS history
Timeline
  • 04 MAR 17:45Z
    An issue was discovered in the _send_secure_msg() function of Yubico yubihsm-shell through 2.0.3
    cvelistv5