Vulnerability Monitor

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CVE-2020-24387

An issue was discovered in the yh_create_session() function of yubihsm-shell through 2.0.2. The function does not explicitly check the returned session id from the device. An invalid session id would lead to out-of-bounds read and write operations in the session array. This could be used by an attacker to cause a denial of service attack.

Published

2020-10-19T20:15:12.947

Last Modified

2024-11-21T05:14:43.313

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 7.5 (HIGH)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:N/I:N/A:P

  • Access Vector: NETWORK
  • Access Complexity: LOW
  • Authentication: NONE
  • Confidentiality Impact: NONE
  • Integrity Impact: NONE
  • Availability Impact: PARTIAL
Exploitability Score

10.0

Impact Score

2.9

Weaknesses
  • Type: Primary
    CWE-125
    CWE-787
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application yubico yubihsm-shell ≤ 2.0.2 Yes
Operating System fedoraproject fedora 33 Yes
References