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    CVE-2020-14967

    An issue was discovered in the jsrsasign package before 8.0.18 for Node.js. Its RSA PKCS1 v1.5 decryption implementation does not detect ciphertext modification by prepending '\0' bytes to ciphertexts (it decrypts modified ciphertexts without error). An attacker might prepend these bytes with the goal of triggering memory corruption issues.

    Published:Jun 22, 2020
    Last Modified:Nov 21, 2024
    EPS:Jun 22, 2020
    EPSS Score:0.00339
    CVSS Score:9.8

    Affected Products

    Vendor
    Jsrsasign Project
    Product
    Jsrsasign
    Vendor
    Netapp
    Product
    Max Data

    Exploits

    https://github.com/kjur/jsrsasign/issues/439https://github.com/kjur/jsrsasign/issues/439

    Related CVEs

    CVE-2026-4603 (CVSS 2) — Versions of the package jsrsasign before 11.1.1 are vulnerable to Division by zero due to the RSASetPublic/KEY…
    CVE-2026-4601 (CVSS 8.8) — Versions of the package jsrsasign before 11.1.1 are vulnerable to Missing Cryptographic Step via the KJUR.cryp…
    CVE-2026-4599 (CVSS 9.3) — Versions of the package jsrsasign from 7.0.0 and before 11.1.1 are vulnerable to Incomplete Comparison with Mi…
    CVE-2026-4598 (CVSS 7.7) — Versions of the package jsrsasign before 11.1.1 are vulnerable to Infinite loop via the bnModInverse function …
    CVE-2026-4602 (CVSS 7.7) — Versions of the package jsrsasign before 11.1.1 are vulnerable to Incorrect Conversion between Numeric Types d…
    CVE-2026-4600 (CVSS 8.1) — Versions of the package jsrsasign before 11.1.1 are vulnerable to Improper Verification of Cryptographic Signa…
    CVE-2024-21484 (CVSS 7.5) — Versions of the package jsrsasign before 11.0.0 are vulnerable to Observable Discrepancy via the RSA PKCS1.5 o…
    CVE-2022-25898 (CVSS 7.7) — The package jsrsasign before 10.5.25 are vulnerable to Improper Verification of Cryptographic Signature when J…
    CVE-2021-30246 (CVSS 9.1) — In the jsrsasign package through 10.1.13 for Node.js, some invalid RSA PKCS#1 v1.5 signatures are mistakenly r…
    CVE-2020-14966 (CVSS 7.5) — An issue was discovered in the jsrsasign package through 8.0.18 for Node.js. It allows a malleability in ECDSA…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High