CVE-2019-10914 Information

Description

pubRsaDecryptSignedElementExt in MatrixSSL 4.0.1 Open as used in Inside Secure TLS Toolkit has a stack-based buffer overflow during X.509 certificate verification because of missing validation in psRsaDecryptPubExt in crypto/pubkey/rsa_pub.c.

CVSS Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Reference

https://bugs.chromium.org/p/project-zero/issues/detail?id=1785 https://github.com/matrixssl/matrixssl/issues/26 https://github.com/matrixssl/matrixssl/releases/tag/4-0-2-open https://www.openwall.com/lists/oss-security/2019/02/15/1

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

9.8