CVE-2014-2897 Information

Description

The SSL 3 HMAC functionality in wolfSSL CyaSSL 2.5.0 before 2.9.4 does not check the padding length when verification fails which allows remote attackers to have unspecified impact via a crafted HMAC which triggers an out-of-bounds read.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Reference

http://seclists.org/oss-sec/2014/q2/126 http://seclists.org/oss-sec/2014/q2/130 http://www.wolfssl.com/yaSSL/Blog/Entries/2014/4/11_wolfSSL_Security_Advisory__April_92C_2014.html http://www.wolfssl.com/yaSSL/Docs-cyassl-changelog.html

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