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- # This script was automatically generated from
- # http://www.gentoo.org/security/en/glsa/glsa-200403-03.xml
- # It is released under the Nessus Script Licence.
- # The messages are release under the Creative Commons - Attribution /
- # Share Alike license. See http://creativecommons.org/licenses/by-sa/2.0/
- #
- # Avisory is copyright 2001-2004 Gentoo Foundation, Inc.
- # GLSA2nasl Convertor is copyright 2004 Michel Arboi
-
- if (! defined_func('bn_random')) exit(0);
-
- if (description)
- {
- script_id(14454);
- script_version("$Revision: 1.1 $");
- script_xref(name: "GLSA", value: "200403-03");
-
- desc = 'The remote host is affected by the vulnerability described in GLSA-200403-03
- (Multiple OpenSSL Vulnerabilities)
-
-
- Testing performed by the OpenSSL group using the Codenomicon
- TLS Test Tool uncovered a null-pointer assignment in the
- do_change_cipher_spec() function. A remote attacker could perform
- a carefully crafted SSL/TLS handshake against a server that used
- the OpenSSL library in such a way as to cause OpenSSL to
- crash. Depending on the application this could lead to a denial of
- service. All versions of OpenSSL from 0.9.6c to 0.9.6l inclusive
- and from 0.9.7a to 0.9.7c inclusive are affected by this issue.
- A flaw has been discovered in SSL/TLS handshaking code when
- using Kerberos ciphersuites. A remote attacker could perform a
- carefully crafted SSL/TLS handshake against a server configured to
- use Kerberos ciphersuites in such a way as to cause OpenSSL to
- crash. Most applications have no ability to use Kerberos
- cipher suites and will therefore be unaffected. Versions 0.9.7a,
- 0.9.7b, and 0.9.7c of OpenSSL are affected by this issue.
- Testing performed by the OpenSSL group using the Codenomicon
- TLS Test Tool uncovered a bug in older versions of OpenSSL 0.9.6
- that can lead to a Denial of Service attack (infinite
- loop). This issue was traced to a fix that was added to OpenSSL
- 0.9.6d some time ago. This issue will affect vendors that ship
- older versions of OpenSSL with backported security patches.
-
- Impact
-
- Although there are no public exploits known for bug, users are recommended
- to upgrade to ensure the security of their infrastructure.
-
- Workaround
-
- There is no immediate workaround; a software upgrade is required. The
- vulnerable function in the code has been rewritten.
-
-
- Solution:
- All users are recommened to upgrade openssl to either 0.9.7d or 0.9.6m:
- # emerge sync
- # emerge -pv ">=dev-libs/openssl-0.9.7d"
- # emerge ">=dev-libs/openssl-0.9.7d"
-
-
- Risk Factor : Medium
- ';
- script_description(english: desc);
- script_copyright(english: "(C) 2004 Michel Arboi");
- script_name(english: "[GLSA-200403-03] Multiple OpenSSL Vulnerabilities");
- script_category(ACT_GATHER_INFO);
- script_family(english: "Gentoo Local Security Checks");
- script_dependencies("ssh_get_info.nasl");
- script_require_keys('Host/Gentoo/qpkg-list');
- script_summary(english: 'Multiple OpenSSL Vulnerabilities');
- exit(0);
- }
-
- include('qpkg.inc');
- if (qpkg_check(package: "dev-libs/openssl", unaffected: make_list("ge 0.9.7d", "eq 0.9.6m"), vulnerable: make_list("le 0.9.7c")
- )) { security_warning(0); exit(0); }
-