CVE-2014-2897

CRITICAL 9.8CVE-2014-2897 · Published 28/01/2020 · updated 17/06/2026

In short

CVE-2014-2897 is a CRITICAL (CVSS 9.8) vulnerability affecting wolfssl (wolfssl).
Chance of exploitation in the next 30 days (EPSS): 2.8%, higher than 86.3% of all vulnerabilities.
Fix: update to 2.9.4 or later.

Package	Affected versions	Patched versions
wolfssl wolfssl	`≥ 2.5.0, < 2.9.4`	`2.9.4`

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.

References

seclists.org/oss-sec/2014/q2/126 · Mailing List
seclists.org/oss-sec/2014/q2/130 · Mailing List
wolfssl.com/yaSSL/Blog/Entries/2014/4/11_wolfSSL_Security_Advisory__April_9%2C_2014.html · Vendor Advisory
wolfssl.com/yaSSL/Docs-cyassl-changelog.html · Vendor Advisory

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Package

Affected versions

Patched versions

wolfssl

≥ 2.5.0, < 2.9.4

2.9.4

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