VulnerabilityModified
CVE-2014-2897
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.
CRITICAL 9.8EPSS 2.77%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.77%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 2.77% probability · 85th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-125
- Affected
- wolfssl/wolfssl
- Source
- cve@mitre.org
References
- http://seclists.org/oss-sec/2014/q2/126Mailing List, Third Party Advisory
- http://seclists.org/oss-sec/2014/q2/130Mailing List, Third Party Advisory
- http://www.wolfssl.com/yaSSL/Blog/Entries/2014/4/11_wolfSSL_Security_Advisory__April_9%2C_2014.htmlVendor Advisory
- http://www.wolfssl.com/yaSSL/Docs-cyassl-changelog.htmlVendor Advisory
- http://seclists.org/oss-sec/2014/q2/126Mailing List, Third Party Advisory
- http://seclists.org/oss-sec/2014/q2/130Mailing List, Third Party Advisory
- http://www.wolfssl.com/yaSSL/Blog/Entries/2014/4/11_wolfSSL_Security_Advisory__April_9%2C_2014.htmlVendor Advisory
- http://www.wolfssl.com/yaSSL/Docs-cyassl-changelog.htmlVendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.