DSA-1985-1 sendmail -- insufficient input validation

Debian Security Advisory

DSA-1985-1 sendmail -- insufficient input validation

Date Reported:

31 Jan 2010

Affected Packages:

sendmail

Vulnerable:

Yes

Security database references:

In the Debian bugtracking system: Bug 564581.
In Mitre's CVE dictionary: CVE-2009-4565.

More information:

It was discovered that sendmail, a Mail Transport Agent, does not properly handle a '\0' character in a Common Name (CN) field of an X.509 certificate.

This allows an attacker to spoof arbitrary SSL-based SMTP servers via a crafted server certificate issued by a legitimate Certification Authority, and to bypass intended access restrictions via a crafted client certificate issued by a legitimate Certification Authority.

For the oldstable distribution (etch), this problem has been fixed in version 8.13.8-3+etch4

For the stable distribution (lenny), this problem has been fixed in version 8.14.3-5+lenny1

For the unstable distribution (sid), this problem has been fixed in version 8.14.3-9.1, and will migrate to the testing distribution (squeeze) shortly.

We recommend that you upgrade your sendmail package.

Fixed in:

Debian GNU/Linux 4.0 (etch)

Source:

http://security.debian.org/pool/updates/main/s/sendmail/sendmail_8.13.8-3+etch4.diff.gz

http://security.debian.org/pool/updates/main/s/sendmail/sendmail_8.13.8-3+etch4.dsc

http://security.debian.org/pool/updates/main/s/sendmail/sendmail_8.13.8.orig.tar.gz

Architecture-independent component:

http://security.debian.org/pool/updates/main/s/sendmail/sendmail-cf_8.13.8-3+etch4_all.deb

http://security.debian.org/pool/updates/main/s/sendmail/sendmail-doc_8.13.8-3+etch4_all.deb

http://security.debian.org/pool/updates/main/s/sendmail/sendmail_8.13.8-3+etch4_all.deb

http://security.debian.org/pool/updates/main/s/sendmail/sendmail-base_8.13.8-3+etch4_all.deb

Alpha:

http://security.debian.org/pool/updates/main/s/sendmail/sensible-mda_8.13.8-3+etch4_alpha.deb

http://security.debian.org/pool/updates/main/s/sendmail/libmilter0_8.13.8-3+etch4_alpha.deb

http://security.debian.org/pool/updates/main/s/sendmail/libmilter0-dbg_8.13.8-3+etch4_alpha.deb

http://security.debian.org/pool/updates/main/s/sendmail/rmail_8.13.8-3+etch4_alpha.deb

http://security.debian.org/pool/updates/main/s/sendmail/libmilter-dev_8.13.8-3+etch4_alpha.deb

http://security.debian.org/pool/updates/main/s/sendmail/sendmail-bin_8.13.8-3+etch4_alpha.deb

AMD64:

http://security.debian.org/pool/updates/main/s/sendmail/sensible-mda_8.13.8-3+etch4_amd64.deb

http://security.debian.org/pool/updates/main/s/sendmail/sendmail-bin_8.13.8-3+etch4_amd64.deb

http://security.debian.org/pool/updates/main/s/sendmail/libmilter-dev_8.13.8-3+etch4_amd64.deb

http://security.debian.org/pool/updates/main/s/sendmail/libmilter0-dbg_8.13.8-3+etch4_amd64.deb

http://security.debian.org/pool/updates/main/s/sendmail/libmilter0_8.13.8-3+etch4_amd64.deb

http://security.debian.org/pool/updates/main/s/sendmail/rmail_8.13.8-3+etch4_amd64.deb

ARM:

http://security.debian.org/pool/updates/main/s/sendmail/sensible-mda_8.13.8-3+etch4_arm.deb

http://security.debian.org/pool/updates/main/s/sendmail/libmilter0-dbg_8.13.8-3+etch4_arm.deb

http://security.debian.org/pool/updates/main/s/sendmail/sendmail-bin_8.13.8-3+etch4_arm.deb

http://security.debian.org/pool/updates/main/s/sendmail/libmilter-dev_8.13.8-3+etch4_arm.deb

http://security.debian.org/pool/updates/main/s/sendmail/rmail_8.13.8-3+etch4_arm.deb

http://security.debian.org/pool/updates/main/s/sendmail/libmilter0_8.13.8-3+etch4_arm.deb

HP Precision:

http://security.debian.org/pool/updates/main/s/sendmail/rmail_8.13.8-3+etch4_hppa.deb

http://security.debian.org/pool/updates/main/s/sendmail/sensible-mda_8.13.8-3+etch4_hppa.deb

http://security.debian.org/pool/updates/main/s/sendmail/libmilter0_8.13.8-3+etch4_hppa.deb

http://security.debian.org/pool/updates/main/s/sendmail/libmilter0-dbg_8.13.8-3+etch4_hppa.deb

http://security.debian.org/pool/updates/main/s/sendmail/sendmail-bin_8.13.8-3+etch4_hppa.deb

http://security.debian.org/pool/updates/main/s/sendmail/libmilter-dev_8.13.8-3+etch4_hppa.deb

Intel IA-32:

http://security.debian.org/pool/updates/main/s/sendmail/libmilter0_8.13.8-3+etch4_i386.deb

http://security.debian.org/pool/updates/main/s/sendmail/sendmail-bin_8.13.8-3+etch4_i386.deb

http://security.debian.org/pool/updates/main/s/sendmail/rmail_8.13.8-3+etch4_i386.deb

http://security.debian.org/pool/updates/main/s/sendmail/libmilter-dev_8.13.8-3+etch4_i386.deb

http://security.debian.org/pool/updates/main/s/sendmail/sensible-mda_8.13.8-3+etch4_i386.deb

http://security.debian.org/pool/updates/main/s/sendmail/libmilter0-dbg_8.13.8-3+etch4_i386.deb

Intel IA-64:

http://security.debian.org/pool/updates/main/s/sendmail/libmilter0-dbg_8.13.8-3+etch4_ia64.deb

http://security.debian.org/pool/updates/main/s/sendmail/sensible-mda_8.13.8-3+etch4_ia64.deb

http://security.debian.org/pool/updates/main/s/sendmail/libmilter0_8.13.8-3+etch4_ia64.deb

http://security.debian.org/pool/updates/main/s/sendmail/rmail_8.13.8-3+etch4_ia64.deb

http://security.debian.org/pool/updates/main/s/sendmail/libmilter-dev_8.13.8-3+etch4_ia64.deb

http://security.debian.org/pool/updates/main/s/sendmail/sendmail-bin_8.13.8-3+etch4_ia64.deb

Little-endian MIPS:

http://security.debian.org/pool/updates/main/s/sendmail/sendmail-bin_8.13.8-3+etch4_mipsel.deb

http://security.debian.org/pool/updates/main/s/sendmail/libmilter0-dbg_8.13.8-3+etch4_mipsel.deb

http://security.debian.org/pool/updates/main/s/sendmail/libmilter0_8.13.8-3+etch4_mipsel.deb

http://security.debian.org/pool/updates/main/s/sendmail/libmilter-dev_8.13.8-3+etch4_mipsel.deb

http://security.debian.org/pool/updates/main/s/sendmail/sensible-mda_8.13.8-3+etch4_mipsel.deb

http://security.debian.org/pool/updates/main/s/sendmail/rmail_8.13.8-3+etch4_mipsel.deb

PowerPC:

http://security.debian.org/pool/updates/main/s/sendmail/libmilter0_8.13.8-3+etch4_powerpc.deb

http://security.debian.org/pool/updates/main/s/sendmail/libmilter-dev_8.13.8-3+etch4_powerpc.deb

http://security.debian.org/pool/updates/main/s/sendmail/sendmail-bin_8.13.8-3+etch4_powerpc.deb

http://security.debian.org/pool/updates/main/s/sendmail/rmail_8.13.8-3+etch4_powerpc.deb

http://security.debian.org/pool/updates/main/s/sendmail/sensible-mda_8.13.8-3+etch4_powerpc.deb

http://security.debian.org/pool/updates/main/s/sendmail/libmilter0-dbg_8.13.8-3+etch4_powerpc.deb

IBM S/390:

http://security.debian.org/pool/updates/main/s/sendmail/libmilter0-dbg_8.13.8-3+etch4_s390.deb

http://security.debian.org/pool/updates/main/s/sendmail/libmilter0_8.13.8-3+etch4_s390.deb

http://security.debian.org/pool/updates/main/s/sendmail/libmilter-dev_8.13.8-3+etch4_s390.deb

http://security.debian.org/pool/updates/main/s/sendmail/sensible-mda_8.13.8-3+etch4_s390.deb

http://security.debian.org/pool/updates/main/s/sendmail/rmail_8.13.8-3+etch4_s390.deb

http://security.debian.org/pool/updates/main/s/sendmail/sendmail-bin_8.13.8-3+etch4_s390.deb

Sun Sparc:

http://security.debian.org/pool/updates/main/s/sendmail/rmail_8.13.8-3+etch4_sparc.deb

http://security.debian.org/pool/updates/main/s/sendmail/libmilter0-dbg_8.13.8-3+etch4_sparc.deb

http://security.debian.org/pool/updates/main/s/sendmail/sendmail-bin_8.13.8-3+etch4_sparc.deb

http://security.debian.org/pool/updates/main/s/sendmail/libmilter-dev_8.13.8-3+etch4_sparc.deb

http://security.debian.org/pool/updates/main/s/sendmail/libmilter0_8.13.8-3+etch4_sparc.deb

http://security.debian.org/pool/updates/main/s/sendmail/sensible-mda_8.13.8-3+etch4_sparc.deb

Debian GNU/Linux 5.0 (lenny)

Source:

http://security.debian.org/pool/updates/main/s/sendmail/sendmail_8.14.3-5+lenny1.dsc

http://security.debian.org/pool/updates/main/s/sendmail/sendmail_8.14.3-5+lenny1.diff.gz

http://security.debian.org/pool/updates/main/s/sendmail/sendmail_8.14.3.orig.tar.gz

Architecture-independent component:

http://security.debian.org/pool/updates/main/s/sendmail/sendmail-cf_8.14.3-5+lenny1_all.deb

http://security.debian.org/pool/updates/main/s/sendmail/sendmail-doc_8.14.3-5+lenny1_all.deb

http://security.debian.org/pool/updates/main/s/sendmail/sendmail_8.14.3-5+lenny1_all.deb

http://security.debian.org/pool/updates/main/s/sendmail/sendmail-base_8.14.3-5+lenny1_all.deb

Alpha:

http://security.debian.org/pool/updates/main/s/sendmail/libmilter1.0.1-dbg_8.14.3-5+lenny1_alpha.deb

http://security.debian.org/pool/updates/main/s/sendmail/libmilter-dev_8.14.3-5+lenny1_alpha.deb

http://security.debian.org/pool/updates/main/s/sendmail/libmilter1.0.1_8.14.3-5+lenny1_alpha.deb

http://security.debian.org/pool/updates/main/s/sendmail/rmail_8.14.3-5+lenny1_alpha.deb

http://security.debian.org/pool/updates/main/s/sendmail/sendmail-bin_8.14.3-5+lenny1_alpha.deb

http://security.debian.org/pool/updates/main/s/sendmail/sensible-mda_8.14.3-5+lenny1_alpha.deb

AMD64:

http://security.debian.org/pool/updates/main/s/sendmail/sensible-mda_8.14.3-5+lenny1_amd64.deb

http://security.debian.org/pool/updates/main/s/sendmail/libmilter1.0.1-dbg_8.14.3-5+lenny1_amd64.deb

http://security.debian.org/pool/updates/main/s/sendmail/rmail_8.14.3-5+lenny1_amd64.deb

http://security.debian.org/pool/updates/main/s/sendmail/libmilter-dev_8.14.3-5+lenny1_amd64.deb

http://security.debian.org/pool/updates/main/s/sendmail/sendmail-bin_8.14.3-5+lenny1_amd64.deb

http://security.debian.org/pool/updates/main/s/sendmail/libmilter1.0.1_8.14.3-5+lenny1_amd64.deb

ARM:

http://security.debian.org/pool/updates/main/s/sendmail/libmilter1.0.1_8.14.3-5+lenny1_arm.deb

http://security.debian.org/pool/updates/main/s/sendmail/rmail_8.14.3-5+lenny1_arm.deb

http://security.debian.org/pool/updates/main/s/sendmail/libmilter-dev_8.14.3-5+lenny1_arm.deb

http://security.debian.org/pool/updates/main/s/sendmail/sendmail-bin_8.14.3-5+lenny1_arm.deb

http://security.debian.org/pool/updates/main/s/sendmail/libmilter1.0.1-dbg_8.14.3-5+lenny1_arm.deb

http://security.debian.org/pool/updates/main/s/sendmail/sensible-mda_8.14.3-5+lenny1_arm.deb

ARM EABI:

http://security.debian.org/pool/updates/main/s/sendmail/libmilter1.0.1-dbg_8.14.3-5+lenny1_armel.deb

http://security.debian.org/pool/updates/main/s/sendmail/libmilter-dev_8.14.3-5+lenny1_armel.deb

http://security.debian.org/pool/updates/main/s/sendmail/libmilter1.0.1_8.14.3-5+lenny1_armel.deb

http://security.debian.org/pool/updates/main/s/sendmail/rmail_8.14.3-5+lenny1_armel.deb

http://security.debian.org/pool/updates/main/s/sendmail/sensible-mda_8.14.3-5+lenny1_armel.deb

http://security.debian.org/pool/updates/main/s/sendmail/sendmail-bin_8.14.3-5+lenny1_armel.deb

HP Precision:

http://security.debian.org/pool/updates/main/s/sendmail/sendmail-bin_8.14.3-5+lenny1_hppa.deb

http://security.debian.org/pool/updates/main/s/sendmail/rmail_8.14.3-5+lenny1_hppa.deb

http://security.debian.org/pool/updates/main/s/sendmail/libmilter1.0.1_8.14.3-5+lenny1_hppa.deb

http://security.debian.org/pool/updates/main/s/sendmail/sensible-mda_8.14.3-5+lenny1_hppa.deb

http://security.debian.org/pool/updates/main/s/sendmail/libmilter-dev_8.14.3-5+lenny1_hppa.deb

http://security.debian.org/pool/updates/main/s/sendmail/libmilter1.0.1-dbg_8.14.3-5+lenny1_hppa.deb

Intel IA-32:

http://security.debian.org/pool/updates/main/s/sendmail/rmail_8.14.3-5+lenny1_i386.deb

http://security.debian.org/pool/updates/main/s/sendmail/sensible-mda_8.14.3-5+lenny1_i386.deb

http://security.debian.org/pool/updates/main/s/sendmail/libmilter1.0.1_8.14.3-5+lenny1_i386.deb

http://security.debian.org/pool/updates/main/s/sendmail/libmilter1.0.1-dbg_8.14.3-5+lenny1_i386.deb

http://security.debian.org/pool/updates/main/s/sendmail/libmilter-dev_8.14.3-5+lenny1_i386.deb

http://security.debian.org/pool/updates/main/s/sendmail/sendmail-bin_8.14.3-5+lenny1_i386.deb

Intel IA-64:

http://security.debian.org/pool/updates/main/s/sendmail/rmail_8.14.3-5+lenny1_ia64.deb

http://security.debian.org/pool/updates/main/s/sendmail/sendmail-bin_8.14.3-5+lenny1_ia64.deb

http://security.debian.org/pool/updates/main/s/sendmail/libmilter1.0.1_8.14.3-5+lenny1_ia64.deb

http://security.debian.org/pool/updates/main/s/sendmail/libmilter1.0.1-dbg_8.14.3-5+lenny1_ia64.deb

http://security.debian.org/pool/updates/main/s/sendmail/sensible-mda_8.14.3-5+lenny1_ia64.deb

http://security.debian.org/pool/updates/main/s/sendmail/libmilter-dev_8.14.3-5+lenny1_ia64.deb

Big-endian MIPS:

http://security.debian.org/pool/updates/main/s/sendmail/sendmail-bin_8.14.3-5+lenny1_mips.deb

http://security.debian.org/pool/updates/main/s/sendmail/libmilter1.0.1_8.14.3-5+lenny1_mips.deb

http://security.debian.org/pool/updates/main/s/sendmail/rmail_8.14.3-5+lenny1_mips.deb

http://security.debian.org/pool/updates/main/s/sendmail/libmilter-dev_8.14.3-5+lenny1_mips.deb

http://security.debian.org/pool/updates/main/s/sendmail/sensible-mda_8.14.3-5+lenny1_mips.deb

http://security.debian.org/pool/updates/main/s/sendmail/libmilter1.0.1-dbg_8.14.3-5+lenny1_mips.deb

Little-endian MIPS:

http://security.debian.org/pool/updates/main/s/sendmail/libmilter1.0.1-dbg_8.14.3-5+lenny1_mipsel.deb

http://security.debian.org/pool/updates/main/s/sendmail/sensible-mda_8.14.3-5+lenny1_mipsel.deb

http://security.debian.org/pool/updates/main/s/sendmail/sendmail-bin_8.14.3-5+lenny1_mipsel.deb

http://security.debian.org/pool/updates/main/s/sendmail/rmail_8.14.3-5+lenny1_mipsel.deb

http://security.debian.org/pool/updates/main/s/sendmail/libmilter1.0.1_8.14.3-5+lenny1_mipsel.deb

http://security.debian.org/pool/updates/main/s/sendmail/libmilter-dev_8.14.3-5+lenny1_mipsel.deb

PowerPC:

http://security.debian.org/pool/updates/main/s/sendmail/sendmail-bin_8.14.3-5+lenny1_powerpc.deb

http://security.debian.org/pool/updates/main/s/sendmail/libmilter1.0.1-dbg_8.14.3-5+lenny1_powerpc.deb

http://security.debian.org/pool/updates/main/s/sendmail/sensible-mda_8.14.3-5+lenny1_powerpc.deb

http://security.debian.org/pool/updates/main/s/sendmail/libmilter1.0.1_8.14.3-5+lenny1_powerpc.deb

http://security.debian.org/pool/updates/main/s/sendmail/libmilter-dev_8.14.3-5+lenny1_powerpc.deb

http://security.debian.org/pool/updates/main/s/sendmail/rmail_8.14.3-5+lenny1_powerpc.deb

IBM S/390:

http://security.debian.org/pool/updates/main/s/sendmail/rmail_8.14.3-5+lenny1_s390.deb

http://security.debian.org/pool/updates/main/s/sendmail/sendmail-bin_8.14.3-5+lenny1_s390.deb

http://security.debian.org/pool/updates/main/s/sendmail/libmilter1.0.1-dbg_8.14.3-5+lenny1_s390.deb

http://security.debian.org/pool/updates/main/s/sendmail/libmilter-dev_8.14.3-5+lenny1_s390.deb

http://security.debian.org/pool/updates/main/s/sendmail/libmilter1.0.1_8.14.3-5+lenny1_s390.deb

http://security.debian.org/pool/updates/main/s/sendmail/sensible-mda_8.14.3-5+lenny1_s390.deb

Sun Sparc:

http://security.debian.org/pool/updates/main/s/sendmail/sensible-mda_8.14.3-5+lenny1_sparc.deb

http://security.debian.org/pool/updates/main/s/sendmail/libmilter1.0.1_8.14.3-5+lenny1_sparc.deb

http://security.debian.org/pool/updates/main/s/sendmail/libmilter-dev_8.14.3-5+lenny1_sparc.deb

http://security.debian.org/pool/updates/main/s/sendmail/sendmail-bin_8.14.3-5+lenny1_sparc.deb

http://security.debian.org/pool/updates/main/s/sendmail/rmail_8.14.3-5+lenny1_sparc.deb

http://security.debian.org/pool/updates/main/s/sendmail/libmilter1.0.1-dbg_8.14.3-5+lenny1_sparc.deb

MD5 checksums of the listed files are available in the original advisory.