GLSA-201404-07 : OpenSSL: Information Disclosure

This script is Copyright (C) 2014 Tenable Network Security, Inc.

Synopsis :

The remote Gentoo host is missing one or more security-related

Description :

The remote host is affected by the vulnerability described in GLSA-201404-07
(OpenSSL: Information Disclosure)

Multiple vulnerabilities have been found in OpenSSL:
OpenSSL incorrectly handles memory in the TLS heartbeat extension,
leading to information disclosure of 64kb per request, possibly
including private keys (“Heartbleed bug”, OpenSSL 1.0.1 only,
The Montgomery ladder implementation of OpenSSL improperly handles
swap operations (CVE-2014-0076).

Impact :

A remote attacker could exploit these issues to disclose information,
including private keys or other sensitive information, or perform
side-channel attacks to obtain ECDSA nonces.

Workaround :

Disabling the tls-heartbeat USE flag (enabled by default) provides a
workaround for the CVE-2014-0160 issue.

See also :

Solution :

All OpenSSL users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose '>=dev-libs/openssl-1.0.1g'
Note: All services using OpenSSL to provide TLS connections have to be
restarted for the update to take effect. Utilities like
app-admin/lib_users can aid in identifying programs using OpenSSL.
As private keys may have been compromised using the Heartbleed attack,
it is recommended to regenerate them.

Risk factor :

High / CVSS Base Score : 9.4
CVSS Temporal Score : 8.2
Public Exploit Available : true

Family: Gentoo Local Security Checks

Nessus Plugin ID: 73407 ()

Bugtraq ID: 66363

CVE ID: CVE-2014-0076

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