U radu programskog paketa OpenSSL uočeno je više sigurnosnih propusta. Udaljeni napadač ih može iskoristiti za otkrivanje i izmjenu informacija, zaobilaženje ograničenja, dobivanje većih privilegija u sustavu, proizvoljno pokretanje programskog koda te napad uskraćivanjem usluga.
Paket:
OpenSSL 1.x
Operacijski sustavi:
Gentoo Linux
Kritičnost:
8.3
Problem:
neodgovarajuća provjera ulaznih podataka, neodgovarajuće rukovanje memorijom, pogreška u programskoj funkciji, pogreška u programskoj komponenti
Sigurnosne ranjivosti se javljaju zbog neodgovarajuće provjere pojedinih ulaznih podataka u funkciji "bn_wexpand", pogrešaka u implementaciji komponente "Cryptographic Message Syntax", nepravilnosti prilikom rukovanja memorijom u funkciji "zlib_stateful_finish", itd.
Posljedica:
Udaljeni napadač navedene ranjivosti može iskoristiti za DoS (eng. Denial of Service) napad, proizvoljno pokretanje programskog koda, otkrivanje i izmjenu podataka, zaobilaženje ograničenja te dobivanje većih privilegija.
Rješenje:
Rješenje problema sigurnosti je korištenje dostupnih programskih nadogradnji i zakrpa.
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Gentoo Linux Security Advisory GLSA 201110-01
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http://security.gentoo.org/
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Severity: High
Title: OpenSSL: Multiple vulnerabilities
Date: October 09, 2011
Bugs: #303739, #308011, #322575, #332027, #345767, #347623,
#354139, #382069
ID: 201110-01
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Synopsis
========
Multiple vulnerabilities were found in OpenSSL, allowing for the
execution of arbitrary code and other attacks.
Background
==========
OpenSSL is an Open Source toolkit implementing the Secure Sockets Layer
(SSL v2/v3) and Transport Layer Security (TLS v1) as well as a general
purpose cryptography library.
Affected packages
=================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 dev-libs/openssl < 1.0.0e >= 1.0.0e
Description
===========
Multiple vulnerabilities have been discovered in OpenSSL. Please review
the CVE identifiers referenced below for details.
Impact
======
A context-dependent attacker could cause a Denial of Service, possibly
execute arbitrary code, bypass intended key requirements, force the
downgrade to unintended ciphers, bypass the need for knowledge of
shared secrets and successfully authenticate, bypass CRL validation, or
obtain sensitive information in applications that use OpenSSL.
Workaround
==========
There is no known workaround at this time.
Resolution
==========
All OpenSSL users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=dev-libs/openssl-1.0.0e"
NOTE: This is a legacy GLSA. Updates for all affected architectures are
available since September 17, 2011. It is likely that your system is
already no longer affected by most of these issues.
References
==========
[ 1 ] CVE-2009-3245
http://nvd.nist.gov/nvd.cfm?cvename=CVE-2009-3245
[ 2 ] CVE-2009-4355
http://nvd.nist.gov/nvd.cfm?cvename=CVE-2009-4355
[ 3 ] CVE-2010-0433
http://nvd.nist.gov/nvd.cfm?cvename=CVE-2010-0433
[ 4 ] CVE-2010-0740
http://nvd.nist.gov/nvd.cfm?cvename=CVE-2010-0740
[ 5 ] CVE-2010-0742
http://nvd.nist.gov/nvd.cfm?cvename=CVE-2010-0742
[ 6 ] CVE-2010-1633
http://nvd.nist.gov/nvd.cfm?cvename=CVE-2010-1633
[ 7 ] CVE-2010-2939
http://nvd.nist.gov/nvd.cfm?cvename=CVE-2010-2939
[ 8 ] CVE-2010-3864
http://nvd.nist.gov/nvd.cfm?cvename=CVE-2010-3864
[ 9 ] CVE-2010-4180
http://nvd.nist.gov/nvd.cfm?cvename=CVE-2010-4180
[ 10 ] CVE-2010-4252
http://nvd.nist.gov/nvd.cfm?cvename=CVE-2010-4252
[ 11 ] CVE-2011-0014
http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-0014
[ 12 ] CVE-2011-3207
http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-3207
[ 13 ] CVE-2011-3210
http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-3210
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-201110-01.xml
Concerns?
=========
Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users' machines is of utmost
importance to us. Any security concerns should be addressed to
Ova e-mail adresa je zaštićena od spambota. Potrebno je omogućiti JavaScript da je vidite. or alternatively, you may file a bug at
https://bugs.gentoo.org.
License
=======
Copyright 2011 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).
The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.
http://creativecommons.org/licenses/by-sa/2.5
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