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Mandriva Linux Security Advisory 2009-239

Mandriva Linux Security Advisory 2009-239
Posted Sep 22, 2009
Authored by Mandriva | Site mandriva.com

Mandriva Linux Security Advisory 2009-239 - Use-after-free vulnerability in the dtls1_retrieve_buffered_fragment function in ssl/d1_both.c in OpenSSL 1.0.0 Beta 2 allows remote attackers to cause a denial of service (openssl s_client crash) and possibly have unspecified other impact via a DTLS packet, as demonstrated by a packet from a server that uses a crafted server certificate. The dtls1_retrieve_buffered_fragment function in ssl/d1_both.c in OpenSSL before 1.0.0 Beta 2 allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via an out-of-sequence DTLS handshake message, related to a fragment bug. The NSS library library before 3.12.3, as used in Firefox; GnuTLS before 2.6.4 and 2.7.4; OpenSSL 0.9.8 through 0.9.8k; and other products support MD2 with X.509 certificates, which might allow remote attackers to spoof certificates by using MD2 design flaws the scope of this issue is currently limited because the amount of computation required is still large. This update provides a solution to these vulnerabilities.

tags | advisory, remote, denial of service, spoof, vulnerability
systems | linux, mandriva
advisories | CVE-2009-1379, CVE-2009-1387, CVE-2009-2409
MD5 | 53607bac689b7a6488ea91c1596b0e99

Mandriva Linux Security Advisory 2009-239

Change Mirror Download

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_______________________________________________________________________

Mandriva Linux Security Advisory MDVSA-2009:239
http://www.mandriva.com/security/
_______________________________________________________________________

Package : openssl
Date : September 22, 2009
Affected: 2009.1
_______________________________________________________________________

Problem Description:

Multiple vulnerabilities was discovered and corrected in openssl:

Use-after-free vulnerability in the dtls1_retrieve_buffered_fragment
function in ssl/d1_both.c in OpenSSL 1.0.0 Beta 2 allows remote
attackers to cause a denial of service (openssl s_client crash)
and possibly have unspecified other impact via a DTLS packet, as
demonstrated by a packet from a server that uses a crafted server
certificate (CVE-2009-1379).

The dtls1_retrieve_buffered_fragment function in ssl/d1_both.c
in OpenSSL before 1.0.0 Beta 2 allows remote attackers to cause a
denial of service (NULL pointer dereference and daemon crash) via
an out-of-sequence DTLS handshake message, related to a fragment
bug. (CVE-2009-1387)

The NSS library library before 3.12.3, as used in Firefox; GnuTLS
before 2.6.4 and 2.7.4; OpenSSL 0.9.8 through 0.9.8k; and other
products support MD2 with X.509 certificates, which might allow
remote attackers to spooof certificates by using MD2 design flaws
to generate a hash collision in less than brute-force time. NOTE:
the scope of this issue is currently limited because the amount of
computation required is still large (CVE-2009-2409).

This update provides a solution to these vulnerabilities.
_______________________________________________________________________

References:

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-1379
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-1387
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-2409
_______________________________________________________________________

Updated Packages:

Mandriva Linux 2009.1:
87fd48b517c4fe99dd2c9500c91b8324 2009.1/i586/libopenssl0.9.8-0.9.8k-1.2mdv2009.1.i586.rpm
1bd7bda2b2bdda4f214bde8844f7c783 2009.1/i586/libopenssl0.9.8-devel-0.9.8k-1.2mdv2009.1.i586.rpm
cf880c3d0cc12b3330d378905e247398 2009.1/i586/libopenssl0.9.8-static-devel-0.9.8k-1.2mdv2009.1.i586.rpm
e8661d33e2dc46c8fb558cc28bd9cec3 2009.1/i586/openssl-0.9.8k-1.2mdv2009.1.i586.rpm
4189b82f3522357d6e5df8b4958a4d6c 2009.1/SRPMS/openssl-0.9.8k-1.2mdv2009.1.src.rpm

Mandriva Linux 2009.1/X86_64:
87c9306042676dbfc9d9d74164dc2bce 2009.1/x86_64/lib64openssl0.9.8-0.9.8k-1.2mdv2009.1.x86_64.rpm
f0d77d0ee36f47dcd18bf872e236e2ac 2009.1/x86_64/lib64openssl0.9.8-devel-0.9.8k-1.2mdv2009.1.x86_64.rpm
950eac00b80ded525cb01f7f9e7ef707 2009.1/x86_64/lib64openssl0.9.8-static-devel-0.9.8k-1.2mdv2009.1.x86_64.rpm
17a67f2a09a0e79185187cb05e1f7f1f 2009.1/x86_64/openssl-0.9.8k-1.2mdv2009.1.x86_64.rpm
4189b82f3522357d6e5df8b4958a4d6c 2009.1/SRPMS/openssl-0.9.8k-1.2mdv2009.1.src.rpm
_______________________________________________________________________

To upgrade automatically use MandrivaUpdate or urpmi. The verification
of md5 checksums and GPG signatures is performed automatically for you.

All packages are signed by Mandriva for security. You can obtain the
GPG public key of the Mandriva Security Team by executing:

gpg --recv-keys --keyserver pgp.mit.edu 0x22458A98

You can view other update advisories for Mandriva Linux at:

http://www.mandriva.com/security/advisories

If you want to report vulnerabilities, please contact

security_(at)_mandriva.com
_______________________________________________________________________

Type Bits/KeyID Date User ID
pub 1024D/22458A98 2000-07-10 Mandriva Security Team
<security*mandriva.com>
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