Vulnerability Details

OpenSSL Multiple Vulnerabilities (20140806 - 2) - Windows

Published: 2021-07-19 12:38:23
CVE Author: NIST National Vulnerability Database

CVSS Base Vector:
AV:N/AC:L/Au:N/C:P/I:P/A:P

Detection Type:
Remote Banner

Solution Type:
Vendor Patch

Summary:
OpenSSL is prone to multiple vulnerabilities.

Detection Method:
Checks if a vulnerable version is present on the target host.

Technical Details:
The following flaws exist: - CVE-2014-5139: A crash was found affecting SRP ciphersuites used in a Server Hello message. The issue affects OpenSSL clients and allows a malicious server to crash the client with a null pointer dereference (read) by specifying an SRP ciphersuite even though it was not properly negotiated with the client. This could lead to a Denial of Service. - CVE-2014-3511: A flaw in the OpenSSL SSL/TLS server code causes the server to negotiate TLS 1.0 instead of higher protocol versions when the ClientHello message is badly fragmented. This allows a man-in-the-middle attacker to force a downgrade to TLS 1.0 even if both the server and the client support a higher protocol version, by modifying the client's TLS records. - CVE-2014-3512: A SRP buffer overrun was found. A malicious client or server can send invalid SRP parameters and overrun an internal buffer. Only applications which are explicitly set up for SRP use are affected.

Affected Versions:
OpenSSL version 1.0.1 through 1.0.1h.

Recommendations:
Update to version 1.0.1i or later.

NIST (National Institute of Standards and Technology) NVD (National Vulnerability Database)

https://nvd.nist.gov/vuln/detail/CVE-2014-5139
https://nvd.nist.gov/vuln/detail/CVE-2014-3511
https://nvd.nist.gov/vuln/detail/CVE-2014-3512

References:

https://www.openssl.org/news/secadv/20140806.txt

Severity
High
CVSS Score
7.5
Published
2021-07-19
Modified
2021-07-30
Category
General

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