VULNERABILITY INTELLIGENCE

CVE-2024-21484

CVSS score7.5 HIGH
EPSS probability0.96%
CISA KEVNot currently listed
Published2024-01-22
Last modified2026-06-22
CVSS vectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:L

Description

Versions of the package jsrsasign before 11.0.0 are vulnerable to Observable Discrepancy via the RSA PKCS1.5 or RSAOAEP decryption process. An attacker can decrypt ciphertexts by exploiting the Marvin security flaw. Exploiting this vulnerability requires the attacker to have access to a large number of ciphertexts encrypted with the same key. Workaround The vulnerability can be mitigated by finding and replacing RSA and RSAOAEP decryption with another crypto library.

Weakness classification

  • CWE-203: Observable Discrepancy

Primary references