VulnerabilityModified
CVE-2020-14967
An attacker might prepend these bytes with the goal of triggering memory corruption issues.
CRITICAL 9.8EPSS 2.61%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.61%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 2.61% probability · 85th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-119
- Affected
- kjur/jsrsasign · netapp/max data
- Source
- cve@mitre.org
References
- https://github.com/kjur/jsrsasign/issues/439Exploit, Issue Tracking, Third Party Advisory
- https://github.com/kjur/jsrsasign/releases/tag/8.0.17Release Notes, Third Party Advisory
- https://github.com/kjur/jsrsasign/releases/tag/8.0.18Release Notes, Third Party Advisory
- https://kjur.github.io/jsrsasign/Release Notes, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20200724-0001/Third Party Advisory
- https://www.npmjs.com/package/jsrsasignProduct, Third Party Advisory
- https://github.com/kjur/jsrsasign/issues/439Exploit, Issue Tracking, Third Party Advisory
- https://github.com/kjur/jsrsasign/releases/tag/8.0.17Release Notes, Third Party Advisory
- https://github.com/kjur/jsrsasign/releases/tag/8.0.18Release Notes, Third Party Advisory
- https://kjur.github.io/jsrsasign/Release Notes, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20200724-0001/Third Party Advisory
- https://www.npmjs.com/package/jsrsasignProduct, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.