Debian: New libspf2 packages fix potential remote code execution

Date23 Oct 2008

3092

Posted ByLinuxSecurity Advisories

Dan Kaminsky discovered that libspf2, an implementation of the Sender Policy Framework (SPF) used by mail servers for mail filtering, handles malformed TXT records incorrectly, leading to a buffer overflow condition (CVE-2008-2469).

- ------------------------------------------------------------------------
Debian Security Advisory DSA-1659-1                  This email address is being protected from spambots. You need JavaScript enabled to view it.
http://www.debian.org/security/                           Florian Weimer
October 23, 2008                      http://www.debian.org/security/faq
- ------------------------------------------------------------------------

Package        : libspf2
Vulnerability  : buffer overflow
Problem type   : remote
Debian-specific: no
CVE Id(s)      : CVE-2008-2469

Dan Kaminsky discovered that libspf2, an implementation of the Sender
Policy Framework (SPF) used by mail servers for mail filtering, handles
malformed TXT records incorrectly, leading to a buffer overflow
condition (CVE-2008-2469).

Note that the SPF configuration template in Debian's Exim configuration
recommends to use libmail-spf-query-perl, which does not suffer from
this issue.

For the stable distribution (etch), this problem has been fixed in
version 1.2.5-4+etch1.

For the testing distribution (lenny), this problem has been fixed in
version 1.2.5.dfsg-5+lenny1.

For the unstable distribution (sid), this problem will be fixed soon.

We recommend that you upgrade your libspf2 package.

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 4.0 alias etch
- -------------------------------

Source archives:

  http://security.debian.org/pool/updates/main/libs/libspf2/libspf2_1.2.5.orig.tar.gz
    Size/MD5 checksum:   518107 5e81bbc41c1394e466eb06dd514f97d7
  http://security.debian.org/pool/updates/main/libs/libspf2/libspf2_1.2.5-4+etch1.dsc
    Size/MD5 checksum:      618 d7f758e290960445754d76595dd14a6b
  http://security.debian.org/pool/updates/main/libs/libspf2/libspf2_1.2.5-4+etch1.diff.gz
    Size/MD5 checksum:    15086 d93480ad8a520e40d2f7aa5622c350bb

alpha architecture (DEC Alpha)

  http://security.debian.org/pool/updates/main/libs/libspf2/libspf2-2_1.2.5-4+etch1_alpha.deb
    Size/MD5 checksum:    58480 8a6fafec1a9e27c32e8c3545673ae64e
  http://security.debian.org/pool/updates/main/libs/libspf2/spfquery_1.2.5-4+etch1_alpha.deb
    Size/MD5 checksum:    21638 a5dbe0b61a0913d6e352aba1e10bc21a
  http://security.debian.org/pool/updates/main/libs/libspf2/libspf2-dev_1.2.5-4+etch1_alpha.deb
    Size/MD5 checksum:    94420 68a4b698b96bea705889da070034e739

amd64 architecture (AMD x86_64 (AMD64))

  http://security.debian.org/pool/updates/main/libs/libspf2/libspf2-2_1.2.5-4+etch1_amd64.deb
    Size/MD5 checksum:    54420 c5d934e0674fe954c9a2fc4a37fcabf6
  http://security.debian.org/pool/updates/main/libs/libspf2/libspf2-dev_1.2.5-4+etch1_amd64.deb
    Size/MD5 checksum:    77296 5f93e9d3dedd674339dcafe2d2227d94
  http://security.debian.org/pool/updates/main/libs/libspf2/spfquery_1.2.5-4+etch1_amd64.deb
    Size/MD5 checksum:    20714 ac938c60372fae2b580f93f9aa9fc617

arm architecture (ARM)

  http://security.debian.org/pool/updates/main/libs/libspf2/libspf2-2_1.2.5-4+etch1_arm.deb
    Size/MD5 checksum:    49590 ddf2d07c5b4e7cf2092b34e615b795bb
  http://security.debian.org/pool/updates/main/libs/libspf2/spfquery_1.2.5-4+etch1_arm.deb
    Size/MD5 checksum:    19686 c08f86305ba1af22cd47b77ab220cd31
  http://security.debian.org/pool/updates/main/libs/libspf2/libspf2-dev_1.2.5-4+etch1_arm.deb
    Size/MD5 checksum:    69614 98d710d66a462fa3d29f45764d055e70

hppa architecture (HP PA RISC)

  http://security.debian.org/pool/updates/main/libs/libspf2/libspf2-2_1.2.5-4+etch1_hppa.deb
    Size/MD5 checksum:    55920 f20a075769b29a4265f6272f629accd2
  http://security.debian.org/pool/updates/main/libs/libspf2/spfquery_1.2.5-4+etch1_hppa.deb
    Size/MD5 checksum:    20900 20282048aa118078480fe82c4ef0d4ab
  http://security.debian.org/pool/updates/main/libs/libspf2/libspf2-dev_1.2.5-4+etch1_hppa.deb
    Size/MD5 checksum:    82492 a791b2a33f2a62da7dfbfa5abf89a5e2

i386 architecture (Intel ia32)

  http://security.debian.org/pool/updates/main/libs/libspf2/spfquery_1.2.5-4+etch1_i386.deb
    Size/MD5 checksum:    20016 d4a5f4f8946431c3f005afef02d77b50
  http://security.debian.org/pool/updates/main/libs/libspf2/libspf2-dev_1.2.5-4+etch1_i386.deb
    Size/MD5 checksum:    71986 1631211512ce5efa9c65a493e5057a1d
  http://security.debian.org/pool/updates/main/libs/libspf2/libspf2-2_1.2.5-4+etch1_i386.deb
    Size/MD5 checksum:    51338 442bf4a790e6d019ac0347f23c5c6261

ia64 architecture (Intel ia64)

  http://security.debian.org/pool/updates/main/libs/libspf2/libspf2-2_1.2.5-4+etch1_ia64.deb
    Size/MD5 checksum:    69090 d1c4ae22765a0e1a76ecff237e6a3d07
  http://security.debian.org/pool/updates/main/libs/libspf2/spfquery_1.2.5-4+etch1_ia64.deb
    Size/MD5 checksum:    25436 958e093744c1346c8d3dd892f21eae3c
  http://security.debian.org/pool/updates/main/libs/libspf2/libspf2-dev_1.2.5-4+etch1_ia64.deb
    Size/MD5 checksum:    98240 b120aed22d59d06065cf0a50210587fa

mipsel architecture (MIPS (Little Endian))

  http://security.debian.org/pool/updates/main/libs/libspf2/spfquery_1.2.5-4+etch1_mipsel.deb
    Size/MD5 checksum:    20012 0a435fb1e50a6453ee28c9f6d82b261c
  http://security.debian.org/pool/updates/main/libs/libspf2/libspf2-2_1.2.5-4+etch1_mipsel.deb
    Size/MD5 checksum:    50382 3ee99a4143a7b8bf4a4f64b66bb75783
  http://security.debian.org/pool/updates/main/libs/libspf2/libspf2-dev_1.2.5-4+etch1_mipsel.deb
    Size/MD5 checksum:    81984 49611db8926324ba12a0827981e13de7

powerpc architecture (PowerPC)

  http://security.debian.org/pool/updates/main/libs/libspf2/libspf2-dev_1.2.5-4+etch1_powerpc.deb
    Size/MD5 checksum:    78872 4da7bfd68eea0826569173888d247908
  http://security.debian.org/pool/updates/main/libs/libspf2/spfquery_1.2.5-4+etch1_powerpc.deb
    Size/MD5 checksum:    23486 fb3f2d541f6635c50f4053f95022ea6c
  http://security.debian.org/pool/updates/main/libs/libspf2/libspf2-2_1.2.5-4+etch1_powerpc.deb
    Size/MD5 checksum:    53426 dcd7b8835c7ad6087d7a5654656b6917

s390 architecture (IBM S/390)

  http://security.debian.org/pool/updates/main/libs/libspf2/libspf2-2_1.2.5-4+etch1_s390.deb
    Size/MD5 checksum:    54666 f0ebb010161d40c2b76f1d99db88f0be
  http://security.debian.org/pool/updates/main/libs/libspf2/spfquery_1.2.5-4+etch1_s390.deb
    Size/MD5 checksum:    20580 41c4ec7139349a449b7d0abc56eb6778
  http://security.debian.org/pool/updates/main/libs/libspf2/libspf2-dev_1.2.5-4+etch1_s390.deb
    Size/MD5 checksum:    77086 eb6e7ca0f8516f82d695d3655fcd3c3b

sparc architecture (Sun SPARC/UltraSPARC)

  http://security.debian.org/pool/updates/main/libs/libspf2/spfquery_1.2.5-4+etch1_sparc.deb
    Size/MD5 checksum:    19662 4cd9803e1e7aa0963ba149ae17cb22a6
  http://security.debian.org/pool/updates/main/libs/libspf2/libspf2-dev_1.2.5-4+etch1_sparc.deb
    Size/MD5 checksum:    71830 b2001b910ceb4390ad427660ea8135b7
  http://security.debian.org/pool/updates/main/libs/libspf2/libspf2-2_1.2.5-4+etch1_sparc.deb
    Size/MD5 checksum:    49884 5efdeefe2a79ed210776647dd5a4e951


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

- ---------------------------------------------------------------------------------
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: This email address is being protected from spambots. You need JavaScript enabled to view it.