what you don't know can hurt you
Home Files News &[SERVICES_TAB]About Contact Add New

FreeBSD-SA-07-08.openssl.txt

FreeBSD-SA-07-08.openssl.txt
Posted Oct 5, 2007
Site security.freebsd.org

FreeBSD Security Advisory - A buffer overflow addressed in FreeBSD-SA-06:23.openssl has been found to be incorrectly fixed.

tags | advisory, overflow
systems | freebsd
advisories | CVE-2007-3738, CVE-2007-5135
SHA-256 | b17048d5d589fb121d6c680856308fa4c05d2db3f5e995fda3825188618c9387

FreeBSD-SA-07-08.openssl.txt

Change Mirror Download
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

=============================================================================
FreeBSD-SA-07:08.openssl Security Advisory
The FreeBSD Project

Topic: Buffer overflow in OpenSSL SSL_get_shared_ciphers()

Category: contrib
Module: openssl
Announced: 2007-10-03
Credits: Moritz Jodeit
Affects: All FreeBSD releases.
Corrected: 2007-10-03 21:39:43 UTC (RELENG_6, 6.2-STABLE)
2007-10-03 21:40:35 UTC (RELENG_6_2, 6.2-RELEASE-p8)
2007-10-03 21:41:22 UTC (RELENG_6_1, 6.1-RELEASE-p20)
2007-10-03 21:42:00 UTC (RELENG_5, 5.5-STABLE)
2007-10-03 21:42:32 UTC (RELENG_5_5, 5.5-RELEASE-p16)
CVE Name: CVE-2007-5135

For general information regarding FreeBSD Security Advisories,
including descriptions of the fields above, security branches, and the
following sections, please visit <URL:http://security.FreeBSD.org/>.

I. Background

FreeBSD includes software from the OpenSSL Project. The OpenSSL Project is
a collaborative effort to develop a robust, commercial-grade, full-featured,
and 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.

II. Problem Description

A buffer overflow addressed in FreeBSD-SA-06:23.openssl has been found
to be incorrectly fixed.

III. Impact

For applications using the SSL_get_shared_ciphers() function, the
buffer overflow could allow an attacker to crash or potentially
execute arbitrary code with the permissions of the user running the
application.

IV. Workaround

No workaround is available, but only applications using the
SSL_get_shared_ciphers() function are affected.

V. Solution

Perform one of the following:

1) Upgrade your vulnerable system to 5-STABLE, or 6-STABLE, or to the
RELENG_6_2, RELENG_6_1, or RELENG_5_5 security branch dated after the
correction date.

2) To patch your present system:

The following patch have been verified to apply to FreeBSD 5.5, 6.1,
and 6.2 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-07:08/openssl.patch
# fetch http://security.FreeBSD.org/patches/SA-07:08/openssl.patch.asc

b) Execute the following commands as root:

# cd /usr/src
# patch < /path/to/patch
# cd /usr/src/secure/lib/libssl
# make obj && make depend && make && make install

VI. Correction details

The following list contains the revision numbers of each file that was
corrected in FreeBSD.

Branch Revision
Path
- -------------------------------------------------------------------------
RELENG_5
src/crypto/openssl/ssl/ssl_lib.c 1.1.1.11.2.3
RELENG_5_5
src/UPDATING 1.342.2.35.2.16
src/sys/conf/newvers.sh 1.62.2.21.2.18
src/crypto/openssl/ssl/ssl_lib.c 1.1.1.11.2.1.4.2
RELENG_6
src/crypto/openssl/ssl/ssl_lib.c 1.1.1.12.2.2
RELENG_6_2
src/UPDATING 1.416.2.29.2.11
src/sys/conf/newvers.sh 1.69.2.13.2.11
src/crypto/openssl/ssl/ssl_lib.c 1.1.1.12.2.1.2.1
RELENG_6_1
src/UPDATING 1.416.2.22.2.22
src/sys/conf/newvers.sh 1.69.2.11.2.22
src/crypto/openssl/ssl/ssl_lib.c 1.1.1.12.6.2
- -------------------------------------------------------------------------

VII. References

http://marc.info/?l=bugtraq&m=119091888624735
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-3738
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-5135

The latest revision of this advisory is available at
http://security.FreeBSD.org/advisories/FreeBSD-SA-07:08.openssl.asc
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.7 (FreeBSD)

iD8DBQFHBA+HFdaIBMps37IRAtTQAJ0bFBZt7DVJzhQkUcu7VdNS7Kj8cwCeMQaS
cNFjW3j2eolZhlee83l3blo=
=zwC2
-----END PGP SIGNATURE-----
Login or Register to add favorites

File Archive:

December 2024

  • Su
  • Mo
  • Tu
  • We
  • Th
  • Fr
  • Sa
  • 1
    Dec 1st
    0 Files
  • 2
    Dec 2nd
    41 Files
  • 3
    Dec 3rd
    25 Files
  • 4
    Dec 4th
    0 Files
  • 5
    Dec 5th
    0 Files
  • 6
    Dec 6th
    0 Files
  • 7
    Dec 7th
    0 Files
  • 8
    Dec 8th
    0 Files
  • 9
    Dec 9th
    0 Files
  • 10
    Dec 10th
    0 Files
  • 11
    Dec 11th
    0 Files
  • 12
    Dec 12th
    0 Files
  • 13
    Dec 13th
    0 Files
  • 14
    Dec 14th
    0 Files
  • 15
    Dec 15th
    0 Files
  • 16
    Dec 16th
    0 Files
  • 17
    Dec 17th
    0 Files
  • 18
    Dec 18th
    0 Files
  • 19
    Dec 19th
    0 Files
  • 20
    Dec 20th
    0 Files
  • 21
    Dec 21st
    0 Files
  • 22
    Dec 22nd
    0 Files
  • 23
    Dec 23rd
    0 Files
  • 24
    Dec 24th
    0 Files
  • 25
    Dec 25th
    0 Files
  • 26
    Dec 26th
    0 Files
  • 27
    Dec 27th
    0 Files
  • 28
    Dec 28th
    0 Files
  • 29
    Dec 29th
    0 Files
  • 30
    Dec 30th
    0 Files
  • 31
    Dec 31st
    0 Files

Top Authors In Last 30 Days

File Tags

Systems

packet storm

© 2024 Packet Storm. All rights reserved.

Services
Security Services
Hosting By
Rokasec
close