CVE-2020-7069CWE-20

Wrong ciphertext/tag in AES-CCM encryption for a 12 bytes IV

Medium · published October 2, 2020

CVSS v3.1
5.4
EPSS
2%
Percentile
81.1
In the wild
Unconfirmed
What it is

In PHP versions 7.2.x below 7.2.34, 7.3.x below 7.3.23 and 7.4.x below 7.4.11, when AES-CCM mode is used with openssl_encrypt() function with 12 bytes IV, only first 7 bytes of the IV is actually used. This can lead to both decreased security and incorrect encryption data.

The record
Technical detail
CVSS v3.1
5.4 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.02055 · 81.1th percentile
Weakness
CWE-20 · Improper Input Validation
Published
2020-10-02T14:14Z
EPSS history
Timeline
  • 02 OCT 14:14Z
    Wrong ciphertext/tag in AES-CCM encryption for a 12 bytes IV
    cvelistv5