From security-advisories at freebsd.org Wed Apr 22 14:19:09 2009
From: security-advisories at freebsd.org (FreeBSD Security Advisories)
Date: Wed Apr 22 14:19:29 2009
Subject: FreeBSD Security Advisory FreeBSD-SA-09:08.openssl
Message-ID: <200904221419.n3MEJ805073379@freefall.freebsd.org>
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=============================================================================
FreeBSD-SA-09:08.openssl Security Advisory
The FreeBSD Project
Topic: Remotely exploitable crash in OpenSSL
Category: contrib
Module: openssl
Announced: 2009-04-22
Affects: All supported versions of FreeBSD.
Corrected: 2009-04-22 14:07:14 UTC (RELENG_7, 7.2-PRERELEASE)
2009-04-22 14:07:14 UTC (RELENG_7_2, 7.2-RC2)
2009-04-22 14:07:14 UTC (RELENG_7_1, 7.1-RELEASE-p5)
2009-04-22 14:07:14 UTC (RELENG_7_0, 7.0-RELEASE-p12)
2009-04-22 14:07:14 UTC (RELENG_6, 6.4-STABLE)
2009-04-22 14:07:14 UTC (RELENG_6_4, 6.4-RELEASE-p4)
2009-04-22 14:07:14 UTC (RELENG_6_3, 6.3-RELEASE-p10)
CVE Name: CVE-2009-0590
For general information regarding FreeBSD Security Advisories,
including descriptions of the fields above, security branches, and the
following sections, please visit .
I. Background
FreeBSD includes software from the OpenSSL Project. The OpenSSL Project is
a collaborative effort to develop a robust, commercial-grade, full-featured
Open Source toolkit implementing the Secure Sockets Layer (SSL v2/v3)
and Transport Layer Security (TLS v1) protocols as well as a full-strength
general purpose cryptography library.
The function ASN1_STRING_print_ex is often used to print the contents of
an SSL certificate.
II. Problem Description
The function ASN1_STRING_print_ex does not properly validate the lengths
of BMPString or UniversalString objects before attempting to print them.
III. Impact
An application which attempts to print a BMPString or UniversalString
which has an invalid length will crash as a result of OpenSSL accessing
invalid memory locations. This could be used by an attacker to crash a
remote application.
IV. Workaround
No workaround is available, but applications which do not use the
ASN1_STRING_print_ex function (either directly or indirectly) are not
affected.
V. Solution
Perform one of the following:
1) Upgrade your vulnerable system to 6-STABLE, or 7-STABLE, or to the
RELENG_7_2, RELENG_7_1, RELENG_7_0, RELENG_6_4, or RELENG_6_3 security
branch dated after the correction date.
2) To patch your present system:
The following patches have been verified to apply to FreeBSD 6.3, 6.4,
7.0, 7.1, and 7.2 systems.
a) Download the relevant patch from the location below, and verify the
detached PGP signature using your PGP utility.
[FreeBSD 7.x]
# fetch http://security.FreeBSD.org/patches/SA-09:08/openssl.patch
# fetch http://security.FreeBSD.org/patches/SA-09:08/openssl.patch.asc
[FreeBSD 6.x]
# fetch http://security.FreeBSD.org/patches/SA-09:08/openssl6.patch
# fetch http://security.FreeBSD.org/patches/SA-09:08/openssl6.patch.asc
b) Execute the following commands as root:
# cd /usr/src
# patch < /path/to/patch
# cd /usr/src/secure/lib/libcrypto
# make obj && make depend && make includes && make && make install
NOTE: On the amd64 platform, the above procedure will not update the
lib32 (i386 compatibility) libraries. On amd64 systems where the i386
compatibility libraries are used, the operating system should instead
be recompiled as described in
VI. Correction details
The following list contains the revision numbers of each file that was
corrected in FreeBSD.
CVS:
Branch Revision
Path
- -------------------------------------------------------------------------
RELENG_6
src/crypto/openssl/crypto/asn1/asn1_err.c 1.1.1.4.12.1
src/crypto/openssl/crypto/asn1/tasn_dec.c 1.1.1.2.10.2
src/crypto/openssl/crypto/asn1/asn1.h 1.1.1.7.10.1
RELENG_6_4
src/UPDATING 1.416.2.40.2.8
src/sys/conf/newvers.sh 1.69.2.18.2.10
src/crypto/openssl/crypto/asn1/asn1_err.c 1.1.1.4.24.1
src/crypto/openssl/crypto/asn1/tasn_dec.c 1.1.1.2.10.1.6.1
src/crypto/openssl/crypto/asn1/asn1.h 1.1.1.7.22.1
RELENG_6_3
src/UPDATING 1.416.2.37.2.15
src/sys/conf/newvers.sh 1.69.2.15.2.14
src/crypto/openssl/crypto/asn1/asn1_err.c 1.1.1.4.22.1
src/crypto/openssl/crypto/asn1/tasn_dec.c 1.1.1.2.10.1.4.1
src/crypto/openssl/crypto/asn1/asn1.h 1.1.1.7.20.1
RELENG_7
src/crypto/openssl/crypto/asn1/asn1_err.c 1.1.1.6.2.1
src/crypto/openssl/crypto/asn1/tasn_dec.c 1.1.1.5.2.1
src/crypto/openssl/crypto/asn1/asn1.h 1.2.2.1
RELENG_7_2
src/UPDATING 1.507.2.23.2.2
src/crypto/openssl/crypto/asn1/asn1_err.c 1.1.1.6.8.1
src/crypto/openssl/crypto/asn1/tasn_dec.c 1.1.1.5.8.1
src/crypto/openssl/crypto/asn1/asn1.h 1.2.8.1
RELENG_7_1
src/UPDATING 1.507.2.13.2.8
src/sys/conf/newvers.sh 1.72.2.9.2.9
src/crypto/openssl/crypto/asn1/asn1_err.c 1.1.1.6.6.1
src/crypto/openssl/crypto/asn1/tasn_dec.c 1.1.1.5.6.1
src/crypto/openssl/crypto/asn1/asn1.h 1.2.6.1
RELENG_7_0
src/UPDATING 1.507.2.3.2.16
src/sys/conf/newvers.sh 1.72.2.5.2.16
src/crypto/openssl/crypto/asn1/asn1_err.c 1.1.1.6.4.1
src/crypto/openssl/crypto/asn1/tasn_dec.c 1.1.1.5.4.1
src/crypto/openssl/crypto/asn1/asn1.h 1.2.4.1
- -------------------------------------------------------------------------
Subversion:
Branch/path Revision
- -------------------------------------------------------------------------
stable/6/ r191381
releng/6.4/ r191381
releng/6.3/ r191381
stable/7/ r191381
releng/7.2/ r191381
releng/7.1/ r191381
releng/7.0/ r191381
- -------------------------------------------------------------------------
VII. References
http://openssl.org/news/secadv_20090325.txt
[Note that two of the issues mentioned in the OpenSSL advisory do
not affect FreeBSD.]
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0590
The latest revision of this advisory is available at
http://security.FreeBSD.org/advisories/FreeBSD-SA-09:08.openssl.asc
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From security-advisories at freebsd.org Wed Apr 22 14:19:13 2009
From: security-advisories at freebsd.org (FreeBSD Security Advisories)
Date: Wed Apr 22 14:19:50 2009
Subject: FreeBSD Security Advisory FreeBSD-SA-09:07.libc
Message-ID: <200904221419.n3MEJCYB073421@freefall.freebsd.org>
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Hash: SHA1
=============================================================================
FreeBSD-SA-09:07.libc Security Advisory
The FreeBSD Project
Topic: Information leak in db(3)
Category: core
Module: libc
Announced: 2009-04-22
Credits: Jaakko Heinonen, Xin LI
Affects: All supported versions of FreeBSD.
Corrected: 2009-04-11 15:19:26 UTC (RELENG_7, 7.2-PRERELEASE)
2009-04-22 14:07:14 UTC (RELENG_7_1, 7.1-RELEASE-p5)
2009-04-22 14:07:14 UTC (RELENG_7_0, 7.0-RELEASE-p12)
2009-04-11 15:21:11 UTC (RELENG_6, 6.4-STABLE)
2009-04-22 14:07:14 UTC (RELENG_6_4, 6.4-RELEASE-p4)
2009-04-22 14:07:14 UTC (RELENG_6_3, 6.3-RELEASE-p10)
For general information regarding FreeBSD Security Advisories,
including descriptions of the fields above, security branches, and the
following sections, please visit .
I. Background
FreeBSD's C library (libc) contains code for creating and accessing
Berkeley DB 1.85 database files. Such databases are used extensively
in FreeBSD; for example, the system password files (/etc/passwd and
/etc/master.passwd) are normally accessed via their database files
(/etc/pwd.db and /etc/spwd.db).
II. Problem Description
Some data structures used by the database interface code are not properly
initialized when allocated.
III. Impact
Programs using the db(3) interface to create Berkeley database files may
"leak" sensitive information into database files. If those files can be
read by other users, this may result in the disclosure of sensitive
information such as login credentials.
IV. Workaround
No workaround is available, but systems without untrusted local users are
probably not affected (since remote attackers will in most cases not be
able to read such database files).
V. Solution
Perform one of the following:
1) Upgrade your vulnerable system to 6-STABLE, or 7-STABLE, or to the
RELENG_7_1, RELENG_7_0, RELENG_6_4, or RELENG_6_3 security branch
dated after the correction date.
2) To patch your present system:
The following patches have been verified to apply to FreeBSD 6.3, 6.4,
7.0, and 7.1 systems.
a) Download the relevant patch from the location below, and verify the
detached PGP signature using your PGP utility.
# fetch http://security.FreeBSD.org/patches/SA-09:07/libc.patch
# fetch http://security.FreeBSD.org/patches/SA-09:07/libc.patch.asc
b) Execute the following commands as root:
# cd /usr/src
# patch < /path/to/patch
# cd /usr/src/lib/libc
# make obj && make depend && make && make install
NOTE: On the amd64 platform, the above procedure will not update the
lib32 (i386 compatibility) libraries. On amd64 systems where the i386
compatibility libraries are used, the operating system should instead
be recompiled as described in
NOTE: System administrators may wish to rebuild any system database files
which were created prior to applying this patch in case they contain
sensitive information.
VI. Correction details
The following list contains the revision numbers of each file that was
corrected in FreeBSD.
CVS:
Branch Revision
Path
- -------------------------------------------------------------------------
RELENG_6
src/lib/libc/db/btree/bt_split.c 1.7.2.1
src/lib/libc/db/btree/bt_open.c 1.11.14.1
src/lib/libc/db/hash/hash_buf.c 1.7.14.1
src/lib/libc/db/mpool/mpool.c 1.12.2.1
src/lib/libc/db/README 1.1.40.1
RELENG_6_4
src/UPDATING 1.416.2.40.2.8
src/sys/conf/newvers.sh 1.69.2.18.2.10
src/lib/libc/db/btree/bt_split.c 1.7.12.2
src/lib/libc/db/hash/hash_buf.c 1.7.26.2
src/lib/libc/db/mpool/mpool.c 1.12.12.2
RELENG_6_3
src/UPDATING 1.416.2.37.2.15
src/sys/conf/newvers.sh 1.69.2.15.2.14
src/lib/libc/db/btree/bt_split.c 1.7.10.1
src/lib/libc/db/hash/hash_buf.c 1.7.24.1
src/lib/libc/db/mpool/mpool.c 1.12.10.1
RELENG_7
src/lib/libc/db/btree/bt_split.c 1.8.2.1
src/lib/libc/db/btree/bt_open.c 1.12.2.1
src/lib/libc/db/hash/hash_buf.c 1.8.2.1
src/lib/libc/db/mpool/mpool.c 1.13.2.1
src/lib/libc/db/README 1.1.50.1
RELENG_7_1
src/UPDATING 1.507.2.13.2.8
src/sys/conf/newvers.sh 1.72.2.9.2.9
src/lib/libc/db/btree/bt_split.c 1.8.6.2
src/lib/libc/db/hash/hash_buf.c 1.8.6.2
src/lib/libc/db/mpool/mpool.c 1.13.6.2
RELENG_7_0
src/UPDATING 1.507.2.3.2.16
src/sys/conf/newvers.sh 1.72.2.5.2.16
src/lib/libc/db/btree/bt_split.c 1.8.4.1
src/lib/libc/db/hash/hash_buf.c 1.8.4.1
src/lib/libc/db/mpool/mpool.c 1.13.4.1
- -------------------------------------------------------------------------
Subversion:
Branch/path Revision
- -------------------------------------------------------------------------
stable/6/ r190940
releng/6.4/ r191381
releng/6.3/ r191381
stable/7/ r190939
releng/7.1/ r191381
releng/7.0/ r191381
- -------------------------------------------------------------------------
The latest revision of this advisory is available at
http://security.FreeBSD.org/advisories/FreeBSD-SA-09:07.libc.asc
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