Articles / Debian: New OpenSSL 0.9.6 p…

Debian: New OpenSSL 0.9.6 packages fix cryptographic weakness

Yutaka Oiwa discovered a vulnerability in the Open Secure Socket Layer (OpenSSL) library that can allow an attacker to perform active protocol-version rollback attacks that could lead to the use of the weaker SSL 2.0 protocol even though both ends support SSL 3.0 or TLS 1.0. Fixed packages are available from security.debian.org.
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Debian Security Advisory DSA 881-1                     security@debian.org
http://www.debian.org/security/                             Martin Schulze
November 4th, 2005                      http://www.debian.org/security/faq
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Package        : openssl096
Vulnerability  : cryptographic weakness
Problem type   : remote
Debian-specific: no
CVE ID         : CVE-2005-2969

Yutaka Oiwa discovered a vulnerability in the Open Secure Socket Layer
(OpenSSL) library that can allow an attacker to perform active
protocol-version rollback attacks that could lead to the use of the
weaker SSL 2.0 protocol even though both ends support SSL 3.0 or TLS
1.0.

The following matrix explains which version in which distribution has
this problem corrected.

                oldstable (woody)      stable (sarge)     unstable (sid)
openssl          0.9.6c-2.woody.8       0.9.7e-3sarge1      0.9.8-3
openssl 094      0.9.4-6.woody.4             n/a              n/a
openssl 095      0.9.5a-6.woody.6            n/a              n/a
openssl 096           n/a               0.9.6m-1sarge1        n/a
openssl 097           n/a                    n/a            0.9.7g-5

We recommend that you upgrade your libssl packages.


Upgrade Instructions
- --------------------

wget url
        will fetch the file for you
dpkg -i file.deb
        will install the referenced file.

If you are using the apt-get package manager, use the line for
sources.list as given below:

apt-get update
        will update the internal database
apt-get upgrade
        will install corrected packages

You may use an automated update by adding the resources from the
footer to the proper configuration.


Debian GNU/Linux 3.1 alias sarge
- --------------------------------

  Source archives:

    http://security.debian.org/pool/updates/main/o/openssl096/openssl096_0.9.6m-1sarge1.dsc
      Size/MD5 checksum:      617 ce5f1e232a472723ca68499327b72dbb
    http://security.debian.org/pool/updates/main/o/openssl096/openssl096_0.9.6m-1sarge1.diff.gz
      Size/MD5 checksum:    18775 21461483c9dc895530bedc3b973faa07
    http://security.debian.org/pool/updates/main/o/openssl096/openssl096_0.9.6m.orig.tar.gz
      Size/MD5 checksum:  2184918 1b63bfdca1c37837dddde9f1623498f9

  Alpha architecture:

    http://security.debian.org/pool/updates/main/o/openssl096/libssl0.9.6_0.9.6m-1sarge1_alpha.deb
      Size/MD5 checksum:  1964914 393db230e3682b76c3c9f36eb42264e6

  AMD64 architecture:

    http://security.debian.org/pool/updates/main/o/openssl096/libssl0.9.6_0.9.6m-1sarge1_amd64.deb
      Size/MD5 checksum:   577924 c07845bb45e5c3b75456f961e336eb13

  ARM architecture:

    http://security.debian.org/pool/updates/main/o/openssl096/libssl0.9.6_0.9.6m-1sarge1_arm.deb
      Size/MD5 checksum:   518534 eea289b8dde19ac6c8c6cf7b30ea4eb1

  Intel IA-32 architecture:

    http://security.debian.org/pool/updates/main/o/openssl096/libssl0.9.6_0.9.6m-1sarge1_i386.deb
      Size/MD5 checksum:  1754964 7b514ad94e57dc9fd6e4842b2946640d

  Intel IA-64 architecture:

    http://security.debian.org/pool/updates/main/o/openssl096/libssl0.9.6_0.9.6m-1sarge1_ia64.deb
      Size/MD5 checksum:   814794 0c604b4b2f703c01173d140b95f61cd6

  HP Precision architecture:

    http://security.debian.org/pool/updates/main/o/openssl096/libssl0.9.6_0.9.6m-1sarge1_hppa.deb
      Size/MD5 checksum:   587272 01cbb27d7021792fd6570b2f466ce41a

  Motorola 680x0 architecture:

    http://security.debian.org/pool/updates/main/o/openssl096/libssl0.9.6_0.9.6m-1sarge1_m68k.deb
      Size/MD5 checksum:   476638 64e57e89c2efbe43db0ee00ae686413b

  Big endian MIPS architecture:

    http://security.debian.org/pool/updates/main/o/openssl096/libssl0.9.6_0.9.6m-1sarge1_mips.deb
      Size/MD5 checksum:   576718 a05286b7d56e76bb6863987f9428cfa8

  Little endian MIPS architecture:

    http://security.debian.org/pool/updates/main/o/openssl096/libssl0.9.6_0.9.6m-1sarge1_mipsel.deb
      Size/MD5 checksum:   568608 11f1592d26bc34ed8b2ecae3af730e04

  PowerPC architecture:

    http://security.debian.org/pool/updates/main/o/openssl096/libssl0.9.6_0.9.6m-1sarge1_powerpc.deb
      Size/MD5 checksum:   582352 48a678cc33b6b253be1dff5d8d7d23da

  IBM S/390 architecture:

    http://security.debian.org/pool/updates/main/o/openssl096/libssl0.9.6_0.9.6m-1sarge1_s390.deb
      Size/MD5 checksum:   602274 4b926097074513294652c4bef75f1f4f

  Sun Sparc architecture:

    http://security.debian.org/pool/updates/main/o/openssl096/libssl0.9.6_0.9.6m-1sarge1_sparc.deb
      Size/MD5 checksum:  1458254 29c66b77c695f27f4f38dbdfbd51d320


  These files will probably be moved into the stable distribution on
  its next update.

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For apt-get: deb http://security.debian.org/ stable/updates main
For dpkg-ftp: ftp://security.debian.org/debian-security dists/stable/updates/main
Mailing list: debian-security-announce@lists.debian.org
Package info: `apt-cache show ' and http://packages.debian.org/

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