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Home » Hacking News » [SECURITY] [DSA-257-1] sendmail remote exploit

[SECURITY] [DSA-257-1] sendmail remote exploit

by Nikola Strahija on March 4th, 2003 Mark Dowd of ISS X-Force found a bug in the header parsing routines of sendmail: it could overflow a buffer overflow when encountering addresses with very long comments.


Debian Security Advisory DSA-257-1 [email protected]
http://www.debian.org/security/ Wichert Akkerman
March 4, 2003
- ------------------------------------------------------------------------


Package : sendmail
Problem type : remote exploit
Debian-specific: no

Mark Dowd of ISS X-Force found a bug in the header parsing routines
of sendmail: it could overflow a buffer overflow when encountering
addresses with very long comments. Since sendmail also parses headers
when forwarding emails this vulnerability can hit mail-servers which do
not deliver the email as well.

This has been fixed in upstream release 8.12.8, version 8.12.3-5 of
the package for Debian GNU/Linux 3.0/woody and version 8.9.3-25 of the
package for Debian GNU/Linux 2.2/potato.

- ------------------------------------------------------------------------

Obtaining updates:

By hand:
wget URL
will fetch the file for you.
dpkg -i FILENAME.deb
will install the fetched file.

With apt:
deb http://security.debian.org/ stable/updates main
added to /etc/apt/sources.list will provide security updates

Additional information can be found on the Debian security webpages
at http://www.debian.org/security/

- ------------------------------------------------------------------------


Debian GNU/Linux 2.2 alias potato
- ---------------------------------

Potato was released for alpha, arm, i386, m68k, powerpc and sparc. At
this moment updates for the m68k architecture are not yet available.


Source archives:

http://security.debian.org/pool/updates/main/s/sendmail/sendmail_8.9.3-25.diff.gz
Size/MD5 checksum: 142053 a5172ea9cce863ff7796a0e1573bb361
http://security.debian.org/pool/updates/main/s/sendmail/sendmail_8.9.3-25.dsc
Size/MD5 checksum: 651 5c9e20403c26133eb3b7cd3fad80a608
http://security.debian.org/pool/updates/main/s/sendmail/sendmail_8.9.3.orig.tar.gz
Size/MD5 checksum: 1068290 efedacfbce84a71d1cfb0e617b84596e

alpha architecture (DEC Alpha)

http://security.debian.org/pool/updates/main/s/sendmail/sendmail_8.9.3-25_alpha.deb
Size/MD5 checksum: 989462 5a76b01999d5691e3dfd841f28e76ab1

arm architecture (ARM)

http://security.debian.org/pool/updates/main/s/sendmail/sendmail_8.9.3-25_arm.deb
Size/MD5 checksum: 947790 c0cf8d1e66be69d3525623d126af7c4d

i386 architecture (Intel ia32)

http://security.debian.org/pool/updates/main/s/sendmail/sendmail_8.9.3-25_i386.deb
Size/MD5 checksum: 931394 b2cd8eb24365b443849ac74bf267a373

powerpc architecture (PowerPC)

http://security.debian.org/pool/updates/main/s/sendmail/sendmail_8.9.3-25_powerpc.deb
Size/MD5 checksum: 933404 077353947cd8d31bf9cd7b3fdb037b66

sparc architecture (Sun SPARC/UltraSPARC)

http://security.debian.org/pool/updates/main/s/sendmail/sendmail_8.9.3-25_sparc.deb
Size/MD5 checksum: 945388 2d08ccae7c9afcfa553df345de92f7d2


Debian GNU/Linux 3.0 alias woody
- --------------------------------

Woody was released for alpha, arm, hppa, i386, ia64, m68k, mips, mipsel,
powerpc, s390 and sparc. At this moment updates for the m68k architecture
are not yet available.


Source archives:

http://security.debian.org/pool/updates/main/s/sendmail/sendmail_8.12.3-5.diff.gz
Size/MD5 checksum: 252348 2176de8c6803953544e45be7cb5b9edf
http://security.debian.org/pool/updates/main/s/sendmail/sendmail_8.12.3-5.dsc
Size/MD5 checksum: 864 d59c00fa854c4f799a3b80cbc5afb430
http://security.debian.org/pool/updates/main/s/sendmail/sendmail_8.12.3.orig.tar.gz
Size/MD5 checksum: 1840401 b198b346b10b3b5afc8cb4e12c07ff4d

Architecture independent packages:

http://security.debian.org/pool/updates/main/s/sendmail/sendmail-doc_8.12.3-5_all.deb
Size/MD5 checksum: 747180 22fd21892f01d09bd0f8dea8b775c9d9

alpha architecture (DEC Alpha)

http://security.debian.org/pool/updates/main/s/sendmail/sendmail_8.12.3-5_alpha.deb
Size/MD5 checksum: 1218128 58560487fc226a845fd7296660a61cb5
http://security.debian.org/pool/updates/main/s/sendmail/libmilter-dev_8.12.3-5_alpha.deb
Size/MD5 checksum: 267188 a76d0c273d9dd6e5e21036687d08a9dc

hppa architecture (HP PA RISC)

http://security.debian.org/pool/updates/main/s/sendmail/libmilter-dev_8.12.3-5_hppa.deb
Size/MD5 checksum: 261038 641be1e03d7740867a3411169c679df9
http://security.debian.org/pool/updates/main/s/sendmail/sendmail_8.12.3-5_hppa.deb
Size/MD5 checksum: 1183136 b28aefc29d9d006d2e41b20cabe3a022

i386 architecture (Intel ia32)

http://security.debian.org/pool/updates/main/s/sendmail/sendmail_8.12.3-5_i386.deb
Size/MD5 checksum: 1003544 add112cbca33ed2ef08c71f4310c3b99
http://security.debian.org/pool/updates/main/s/sendmail/libmilter-dev_8.12.3-5_i386.deb
Size/MD5 checksum: 236700 7fad41d249e34da223ef14a5c8d3d0e5

ia64 architecture (Intel ia64)

http://security.debian.org/pool/updates/main/s/sendmail/libmilter-dev_8.12.3-5_ia64.deb
Size/MD5 checksum: 281374 f212558f7949f510015a6fb98c5f9eba
http://security.debian.org/pool/updates/main/s/sendmail/sendmail_8.12.3-5_ia64.deb
Size/MD5 checksum: 1481876 f74b5c848aeac0e0eb4e37457107172b

mips architecture (MIPS (Big Endian))

http://security.debian.org/pool/updates/main/s/sendmail/libmilter-dev_8.12.3-5_mips.deb
Size/MD5 checksum: 254526 d13a130869dbcfa4d987b712d4d5a5b5
http://security.debian.org/pool/updates/main/s/sendmail/sendmail_8.12.3-5_mips.deb
Size/MD5 checksum: 1125168 d9ce244ca31591c3856585f3a18fba8f

mipsel architecture (MIPS (Little Endian))

http://security.debian.org/pool/updates/main/s/sendmail/libmilter-dev_8.12.3-5_mipsel.deb
Size/MD5 checksum: 254218 8ced0f9f7e5fe6fce92b21d151a74262
http://security.debian.org/pool/updates/main/s/sendmail/sendmail_8.12.3-5_mipsel.deb
Size/MD5 checksum: 1126432 46a7e7aeaf692952d33af1e440f1ca24

powerpc architecture (PowerPC)

http://security.debian.org/pool/updates/main/s/sendmail/libmilter-dev_8.12.3-5_powerpc.deb
Size/MD5 checksum: 256638 1979775c88595b879c51c189cb988bbe
http://security.debian.org/pool/updates/main/s/sendmail/sendmail_8.12.3-5_powerpc.deb
Size/MD5 checksum: 1072842 930eacda0842a5352baaa0777a766c8b

s390 architecture (IBM S/390)

http://security.debian.org/pool/updates/main/s/sendmail/libmilter-dev_8.12.3-5_s390.deb
Size/MD5 checksum: 241982 12308ce83066626a829801eacb84b750
http://security.debian.org/pool/updates/main/s/sendmail/sendmail_8.12.3-5_s390.deb
Size/MD5 checksum: 1049162 4d236fb632838c25c889060d513aff38

sparc architecture (Sun SPARC/UltraSPARC)

http://security.debian.org/pool/updates/main/s/sendmail/libmilter-dev_8.12.3-5_sparc.deb
Size/MD5 checksum: 244686 18ab3afa614305c57ee90ca88c653a96
http://security.debian.org/pool/updates/main/s/sendmail/sendmail_8.12.3-5_sparc.deb
Size/MD5 checksum: 1069094 d0d8b236d637c04490fc5355b1a41701


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