PT-2014-1698 · Openssl+7 · Openssl+7
Published
2014-08-06
·
Updated
2024-06-15
·
CVE-2014-3510
CVSS v2.0
7.5
High
| Vector | AV:N/AC:L/Au:N/C:P/I:P/A:P |
Name of the Vulnerable Software and Affected Versions
OpenSSL versions 0.9.8 before 0.9.8zb
OpenSSL versions 1.0.0 before 1.0.0n
OpenSSL versions 1.0.1 before 1.0.1i
Description
The issue allows remote DTLS servers to cause a denial of service, resulting in a client application crash due to a NULL pointer dereference. This can be achieved by sending a crafted handshake message in conjunction with an anonymous DH or ECDH ciphersuite. The estimated number of potentially affected devices and details about real-world incidents are not provided.
Recommendations
For OpenSSL versions 0.9.8 before 0.9.8zb, update to version 0.9.8zb or later.
For OpenSSL versions 1.0.0 before 1.0.0n, update to version 1.0.0n or later.
For OpenSSL versions 1.0.1 before 1.0.1i, update to version 1.0.1i or later.
As a temporary workaround, consider disabling the use of anonymous DH or ECDH ciphersuites until a patch is available. Restrict access to DTLS servers to minimize the risk of exploitation. Avoid using the
ssl3 send client key exchange function in the affected s3 clnt.c file until the issue is resolved.Exploit
Fix
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Related Identifiers
Affected Products
Alt Linux
Centos
Hp-Ux
Ibm Aix
Openssl
Red Hat
Suse
Ubuntu