CVE-2014-2897

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.

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 2.0 •
EPSS 1.01% Top 25%
Vendor Advisory wolfssl.com Vendor Advisory wolfssl.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.wolfssl.com/yaSSL/Blog/Entries/2014/4/11_wolfSSL_Security_Advisory__April_9%2C_2014.html vendor advisory
http://www.wolfssl.com/yaSSL/Docs-cyassl-changelog.html vendor advisory
http://seclists.org/oss-sec/2014/q2/126 third party advisory mailing list
http://seclists.org/oss-sec/2014/q2/130 third party advisory mailing list

Frequently Asked Questions

What is the severity of CVE-2014-2897?
CVE-2014-2897 has been scored as a critical severity vulnerability.
How to fix CVE-2014-2897?
To fix CVE-2014-2897, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2014-2897 being actively exploited in the wild?
It is possible that CVE-2014-2897 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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