GLSA-200609-05 : OpenSSL, AMD64 x86 emulation base libraries: RSA signature forgery

This script is Copyright (C) 2006-2014 Tenable Network Security, Inc.


Synopsis :

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

Description :

The remote host is affected by the vulnerability described in GLSA-200609-05
(OpenSSL, AMD64 x86 emulation base libraries: RSA signature forgery)

Daniel Bleichenbacher discovered that it might be possible to forge
signatures signed by RSA keys with the exponent of 3.

Impact :

Since several CAs are using an exponent of 3 it might be possible for
an attacker to create a key with a false CA signature.

Workaround :

There is no known workaround at this time.

See also :

http://www.gentoo.org/security/en/glsa/glsa-200609-05.xml

Solution :

All OpenSSL users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose '>=dev-libs/openssl-0.9.7k'
All AMD64 x86 emulation base libraries users should upgrade to the
latest version:
# emerge --sync
# emerge --ask --oneshot --verbose '>=app-emulation/emul-linux-x86-baselibs-2.5.2'

Risk factor :

Medium / CVSS Base Score : 4.3
(CVSS2#AV:N/AC:M/Au:N/C:P/I:N/A:N)
CVSS Temporal Score : 3.2
(CVSS2#E:U/RL:OF/RC:C)
Public Exploit Available : false

Family: Gentoo Local Security Checks

Nessus Plugin ID: 22327 (gentoo_GLSA-200609-05.nasl)

Bugtraq ID: 19849

CVE ID: CVE-2006-4339