PT-2014-1312 · Openssl+5 · Openssl+5
Published
2014-03-25
·
Updated
2024-06-15
·
CVE-2014-0076
CVSS v2.0
1.9
Low
| Vector | AV:L/AC:M/Au:N/C:P/I:N/A:N |
Name of the Vulnerable Software and Affected Versions
OpenSSL versions 1.0.0 through 1.0.0l
OpenSSL versions prior to 1.0.1g
Description
The Montgomery ladder implementation in OpenSSL does not ensure constant-time behavior for certain swap operations, making it easier for local users to obtain ECDSA nonces via a FLUSH+RELOAD cache side-channel attack. Multiple vulnerabilities in the OpenSSL package can lead to confidentiality breaches, and exploitation can be done remotely.
Recommendations
For OpenSSL versions 1.0.0 through 1.0.0l, consider updating to a version with a fixed Montgomery ladder implementation.
For OpenSSL versions prior to 1.0.1g, update to version 1.0.1g or later to address the vulnerabilities.
As a temporary workaround, consider restricting access to sensitive operations that rely on the Montgomery ladder implementation until a patch is available.
Exploit
Fix
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Weakness Enumeration
Related Identifiers
Affected Products
Alt Linux
Hp-Ux
Huawei Vrp
Junos
Openssl
Suse