3571e53040
patches for easier mirroring, to eliminate a special copy, to make www.freebsd.org/security a full copy of security.freebsd.org and be eventually be the same. For now files are just sitting there. The symlinks are missing. Discussed on: www (repository location) Discussed with: simon (so)
117 lines
4.3 KiB
Text
117 lines
4.3 KiB
Text
-----BEGIN PGP SIGNED MESSAGE-----
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Hash: SHA1
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=============================================================================
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FreeBSD-SA-07:08.openssl Security Advisory
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The FreeBSD Project
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Topic: Buffer overflow in OpenSSL SSL_get_shared_ciphers()
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Category: contrib
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Module: openssl
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Announced: 2007-10-03
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Credits: Moritz Jodeit
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Affects: All FreeBSD releases.
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Corrected: 2007-10-03 21:39:43 UTC (RELENG_6, 6.2-STABLE)
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2007-10-03 21:40:35 UTC (RELENG_6_2, 6.2-RELEASE-p8)
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2007-10-03 21:41:22 UTC (RELENG_6_1, 6.1-RELEASE-p20)
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2007-10-03 21:42:00 UTC (RELENG_5, 5.5-STABLE)
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2007-10-03 21:42:32 UTC (RELENG_5_5, 5.5-RELEASE-p16)
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CVE Name: CVE-2007-5135
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For general information regarding FreeBSD Security Advisories,
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including descriptions of the fields above, security branches, and the
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following sections, please visit <URL:http://security.FreeBSD.org/>.
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I. Background
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FreeBSD includes software from the OpenSSL Project. The OpenSSL Project is
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a collaborative effort to develop a robust, commercial-grade, full-featured,
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and Open Source toolkit implementing the Secure Sockets Layer (SSL v2/v3)
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and Transport Layer Security (TLS v1) protocols as well as a full-strength
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general purpose cryptography library.
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II. Problem Description
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A buffer overflow addressed in FreeBSD-SA-06:23.openssl has been found
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to be incorrectly fixed.
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III. Impact
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For applications using the SSL_get_shared_ciphers() function, the
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buffer overflow could allow an attacker to crash or potentially
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execute arbitrary code with the permissions of the user running the
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application.
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IV. Workaround
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No workaround is available, but only applications using the
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SSL_get_shared_ciphers() function are affected.
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V. Solution
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Perform one of the following:
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1) Upgrade your vulnerable system to 5-STABLE, or 6-STABLE, or to the
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RELENG_6_2, RELENG_6_1, or RELENG_5_5 security branch dated after the
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correction date.
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2) To patch your present system:
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The following patch have been verified to apply to FreeBSD 5.5, 6.1,
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and 6.2 systems.
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a) Download the relevant patch from the location below, and verify the
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detached PGP signature using your PGP utility.
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# fetch http://security.FreeBSD.org/patches/SA-07:08/openssl.patch
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# fetch http://security.FreeBSD.org/patches/SA-07:08/openssl.patch.asc
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b) Execute the following commands as root:
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# cd /usr/src
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# patch < /path/to/patch
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# cd /usr/src/secure/lib/libssl
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# make obj && make depend && make && make install
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VI. Correction details
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The following list contains the revision numbers of each file that was
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corrected in FreeBSD.
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Branch Revision
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Path
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- -------------------------------------------------------------------------
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RELENG_5
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src/crypto/openssl/ssl/ssl_lib.c 1.1.1.11.2.3
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RELENG_5_5
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src/UPDATING 1.342.2.35.2.16
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src/sys/conf/newvers.sh 1.62.2.21.2.18
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src/crypto/openssl/ssl/ssl_lib.c 1.1.1.11.2.1.4.2
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RELENG_6
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src/crypto/openssl/ssl/ssl_lib.c 1.1.1.12.2.2
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RELENG_6_2
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src/UPDATING 1.416.2.29.2.11
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src/sys/conf/newvers.sh 1.69.2.13.2.11
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src/crypto/openssl/ssl/ssl_lib.c 1.1.1.12.2.1.2.1
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RELENG_6_1
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src/UPDATING 1.416.2.22.2.22
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src/sys/conf/newvers.sh 1.69.2.11.2.22
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src/crypto/openssl/ssl/ssl_lib.c 1.1.1.12.6.2
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- -------------------------------------------------------------------------
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VII. References
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http://marc.info/?l=bugtraq&m=119091888624735
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http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-3738
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http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-5135
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The latest revision of this advisory is available at
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http://security.FreeBSD.org/advisories/FreeBSD-SA-07:08.openssl.asc
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