Articles / Red Hat: Updated sendmail p…

Red Hat: Updated sendmail packages fix a security issue

Sendmail is a Mail Transport Agent (MTA) used to send mail between machines. A flaw in the handling of asynchronous signals was discovered in Sendmail. A remote attacker may be able to exploit a race condition to execute arbitrary code as root. By default on Red Hat Enterprise Linux 3 and 4, Sendmail is configured to only accept connections from the local host. Therefore, only users who have configured Sendmail to listen to remote hosts would be able to be remotely exploited by this vulnerability. Fixed packages are available from updates.redhat.com.
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

- ---------------------------------------------------------------------
                   Red Hat Security Advisory

Synopsis:          Critical: sendmail security update
Advisory ID:       RHSA-2006:0264-01
Advisory URL:      https://rhn.redhat.com/errata/RHSA-2006-0264.html
Issue date:        2006-03-22
Updated on:        2006-03-22
Product:           Red Hat Enterprise Linux
CVE Names:         CVE-2006-0058
- ---------------------------------------------------------------------

1. Summary:

Updated sendmail packages to fix a security issue are now available for Red
Hat Enterprise Linux 3 and 4.

This update has been rated as having critical security impact by the Red
Hat Security Response Team.

2. Relevant releases/architectures:

Red Hat Enterprise Linux AS version 3 - i386, ia64, ppc, s390, s390x, x86_64
Red Hat Desktop version 3 - i386, x86_64
Red Hat Enterprise Linux ES version 3 - i386, ia64, x86_64
Red Hat Enterprise Linux WS version 3 - i386, ia64, x86_64
Red Hat Enterprise Linux AS version 4 - i386, ia64, ppc, s390, s390x, x86_64
Red Hat Enterprise Linux Desktop version 4 - i386, x86_64
Red Hat Enterprise Linux ES version 4 - i386, ia64, x86_64
Red Hat Enterprise Linux WS version 4 - i386, ia64, x86_64

3. Problem description:

Sendmail is a Mail Transport Agent (MTA) used to send mail between machines.

A flaw in the handling of asynchronous signals was discovered in Sendmail.
A remote attacker may be able to exploit a race condition to execute
arbitrary code as root.  The Common Vulnerabilities and Exposures project
assigned the name CVE-2006-0058 to this issue.

By default on Red Hat Enterprise Linux 3 and 4, Sendmail is configured to
only accept connections from the local host.  Therefore, only users who have
configured Sendmail to listen to remote hosts would be able to be remotely
exploited by this vulnerability.

Users of Sendmail are advised to upgrade to these erratum packages, which
contain a backported patch from the Sendmail team to correct this issue.

4. Solution:

Before applying this update, make sure all previously released errata
relevant to your system have been applied.

This update is available via Red Hat Network.  To use Red Hat Network,
launch the Red Hat Update Agent with the following command:

up2date

This will start an interactive process that will result in the appropriate
RPMs being upgraded on your system.

5. Bug IDs fixed (http://bugzilla.redhat.com/):

184465 - CVE-2006-0058  Sendmail race condition issue


6. RPMs required:

Red Hat Enterprise Linux AS version 3:

SRPMS:
ftp://updates.redhat.com/enterprise/3AS/en/os/SRPMS/sendmail-8.12.11-4.RHEL3.4.src.rpm
7d2875e6d9a3b4ddfa54e3be67888070  sendmail-8.12.11-4.RHEL3.4.src.rpm

i386:
944e64db10b061dff22a10117c7f4a31  sendmail-8.12.11-4.RHEL3.4.i386.rpm
c8fc53343bff73624542b4ea77c2b565  sendmail-cf-8.12.11-4.RHEL3.4.i386.rpm
090525584bce022b9e04bafbefb9d71a  sendmail-devel-8.12.11-4.RHEL3.4.i386.rpm
c3ea9cb0ab86047422d58447e93415fb  sendmail-doc-8.12.11-4.RHEL3.4.i386.rpm

ia64:
bc6715fefbd6bd9349b8116a13127d6b  sendmail-8.12.11-4.RHEL3.4.ia64.rpm
beb6de13a56f2fffdfed69ae7a050137  sendmail-cf-8.12.11-4.RHEL3.4.ia64.rpm
2ad6d475f92907b535b175a10572c897  sendmail-devel-8.12.11-4.RHEL3.4.ia64.rpm
231ea97fa236e429ecc6f7734f950025  sendmail-doc-8.12.11-4.RHEL3.4.ia64.rpm

ppc:
e548c09d3101ee937fa900dee199c207  sendmail-8.12.11-4.RHEL3.4.ppc.rpm
d4e14142aa623898b6a978e7658f036a  sendmail-cf-8.12.11-4.RHEL3.4.ppc.rpm
813ba2da17685d2923796826d0720735  sendmail-devel-8.12.11-4.RHEL3.4.ppc.rpm
2dc1c320d39a5733d7e2594a38d2c681  sendmail-doc-8.12.11-4.RHEL3.4.ppc.rpm

s390:
28995c615c097f06b93566bcf7e7e620  sendmail-8.12.11-4.RHEL3.4.s390.rpm
f9f3328d6170be64beaa4f1f43cca5a4  sendmail-cf-8.12.11-4.RHEL3.4.s390.rpm
6d28c9d70fb26c3ae7916f4c20937095  sendmail-devel-8.12.11-4.RHEL3.4.s390.rpm
1f16f02650a63249180b285e98fca603  sendmail-doc-8.12.11-4.RHEL3.4.s390.rpm

s390x:
4ef7001ea500dc64f7f14d42e5ef419b  sendmail-8.12.11-4.RHEL3.4.s390x.rpm
f6607a113c0efa597fdea8926c060436  sendmail-cf-8.12.11-4.RHEL3.4.s390x.rpm
65122cedf0c82b7491fcaa30bf135f63  sendmail-devel-8.12.11-4.RHEL3.4.s390x.rpm
9df7ab571f5ad111db83bf403d58ef88  sendmail-doc-8.12.11-4.RHEL3.4.s390x.rpm

x86_64:
33764d084b7cfbb9687ec3a55f6e466c  sendmail-8.12.11-4.RHEL3.4.x86_64.rpm
ea1690edc3270c917b63c10b3c2b47a3  sendmail-cf-8.12.11-4.RHEL3.4.x86_64.rpm
0a5290a0b2b2c96558fa120120eb316d  sendmail-devel-8.12.11-4.RHEL3.4.x86_64.rpm
48a4b96f92aea23a54b7e2740dcc8f87  sendmail-doc-8.12.11-4.RHEL3.4.x86_64.rpm

Red Hat Desktop version 3:

SRPMS:
ftp://updates.redhat.com/enterprise/3desktop/en/os/SRPMS/sendmail-8.12.11-4.RHEL3.4.src.rpm
7d2875e6d9a3b4ddfa54e3be67888070  sendmail-8.12.11-4.RHEL3.4.src.rpm

i386:
944e64db10b061dff22a10117c7f4a31  sendmail-8.12.11-4.RHEL3.4.i386.rpm
c8fc53343bff73624542b4ea77c2b565  sendmail-cf-8.12.11-4.RHEL3.4.i386.rpm
090525584bce022b9e04bafbefb9d71a  sendmail-devel-8.12.11-4.RHEL3.4.i386.rpm
c3ea9cb0ab86047422d58447e93415fb  sendmail-doc-8.12.11-4.RHEL3.4.i386.rpm

x86_64:
33764d084b7cfbb9687ec3a55f6e466c  sendmail-8.12.11-4.RHEL3.4.x86_64.rpm
ea1690edc3270c917b63c10b3c2b47a3  sendmail-cf-8.12.11-4.RHEL3.4.x86_64.rpm
0a5290a0b2b2c96558fa120120eb316d  sendmail-devel-8.12.11-4.RHEL3.4.x86_64.rpm
48a4b96f92aea23a54b7e2740dcc8f87  sendmail-doc-8.12.11-4.RHEL3.4.x86_64.rpm

Red Hat Enterprise Linux ES version 3:

SRPMS:
ftp://updates.redhat.com/enterprise/3ES/en/os/SRPMS/sendmail-8.12.11-4.RHEL3.4.src.rpm
7d2875e6d9a3b4ddfa54e3be67888070  sendmail-8.12.11-4.RHEL3.4.src.rpm

i386:
944e64db10b061dff22a10117c7f4a31  sendmail-8.12.11-4.RHEL3.4.i386.rpm
c8fc53343bff73624542b4ea77c2b565  sendmail-cf-8.12.11-4.RHEL3.4.i386.rpm
090525584bce022b9e04bafbefb9d71a  sendmail-devel-8.12.11-4.RHEL3.4.i386.rpm
c3ea9cb0ab86047422d58447e93415fb  sendmail-doc-8.12.11-4.RHEL3.4.i386.rpm

ia64:
bc6715fefbd6bd9349b8116a13127d6b  sendmail-8.12.11-4.RHEL3.4.ia64.rpm
beb6de13a56f2fffdfed69ae7a050137  sendmail-cf-8.12.11-4.RHEL3.4.ia64.rpm
2ad6d475f92907b535b175a10572c897  sendmail-devel-8.12.11-4.RHEL3.4.ia64.rpm
231ea97fa236e429ecc6f7734f950025  sendmail-doc-8.12.11-4.RHEL3.4.ia64.rpm

x86_64:
33764d084b7cfbb9687ec3a55f6e466c  sendmail-8.12.11-4.RHEL3.4.x86_64.rpm
ea1690edc3270c917b63c10b3c2b47a3  sendmail-cf-8.12.11-4.RHEL3.4.x86_64.rpm
0a5290a0b2b2c96558fa120120eb316d  sendmail-devel-8.12.11-4.RHEL3.4.x86_64.rpm
48a4b96f92aea23a54b7e2740dcc8f87  sendmail-doc-8.12.11-4.RHEL3.4.x86_64.rpm

Red Hat Enterprise Linux WS version 3:

SRPMS:
ftp://updates.redhat.com/enterprise/3WS/en/os/SRPMS/sendmail-8.12.11-4.RHEL3.4.src.rpm
7d2875e6d9a3b4ddfa54e3be67888070  sendmail-8.12.11-4.RHEL3.4.src.rpm

i386:
944e64db10b061dff22a10117c7f4a31  sendmail-8.12.11-4.RHEL3.4.i386.rpm
c8fc53343bff73624542b4ea77c2b565  sendmail-cf-8.12.11-4.RHEL3.4.i386.rpm
090525584bce022b9e04bafbefb9d71a  sendmail-devel-8.12.11-4.RHEL3.4.i386.rpm
c3ea9cb0ab86047422d58447e93415fb  sendmail-doc-8.12.11-4.RHEL3.4.i386.rpm

ia64:
bc6715fefbd6bd9349b8116a13127d6b  sendmail-8.12.11-4.RHEL3.4.ia64.rpm
beb6de13a56f2fffdfed69ae7a050137  sendmail-cf-8.12.11-4.RHEL3.4.ia64.rpm
2ad6d475f92907b535b175a10572c897  sendmail-devel-8.12.11-4.RHEL3.4.ia64.rpm
231ea97fa236e429ecc6f7734f950025  sendmail-doc-8.12.11-4.RHEL3.4.ia64.rpm

x86_64:
33764d084b7cfbb9687ec3a55f6e466c  sendmail-8.12.11-4.RHEL3.4.x86_64.rpm
ea1690edc3270c917b63c10b3c2b47a3  sendmail-cf-8.12.11-4.RHEL3.4.x86_64.rpm
0a5290a0b2b2c96558fa120120eb316d  sendmail-devel-8.12.11-4.RHEL3.4.x86_64.rpm
48a4b96f92aea23a54b7e2740dcc8f87  sendmail-doc-8.12.11-4.RHEL3.4.x86_64.rpm

Red Hat Enterprise Linux AS version 4:

SRPMS:
ftp://updates.redhat.com/enterprise/4AS/en/os/SRPMS/sendmail-8.13.1-3.RHEL4.3.src.rpm
e83dd254437bf7d4415a6be12c7a58da  sendmail-8.13.1-3.RHEL4.3.src.rpm

i386:
fba1a601a1ab106f67b22030ad090c28  sendmail-8.13.1-3.RHEL4.3.i386.rpm
8ed398a86f127e08ee31b19f14deafc4  sendmail-cf-8.13.1-3.RHEL4.3.i386.rpm
dade78569735970629e880969892b9f3  sendmail-devel-8.13.1-3.RHEL4.3.i386.rpm
3e656f2c678aa19f32eaad782abada8a  sendmail-doc-8.13.1-3.RHEL4.3.i386.rpm

ia64:
7b366e3fbfab8ce2a4cabff56c5dae2b  sendmail-8.13.1-3.RHEL4.3.ia64.rpm
4d2625fc1981329a7a348b360c9c2209  sendmail-cf-8.13.1-3.RHEL4.3.ia64.rpm
23e84e296ce17c5a18d2dd8ed3189d7e  sendmail-devel-8.13.1-3.RHEL4.3.ia64.rpm
5d4ca9a18cc0cd9148679fc8e4b9b339  sendmail-doc-8.13.1-3.RHEL4.3.ia64.rpm

ppc:
5d46ed345d357e23637ee93538c9bf6c  sendmail-8.13.1-3.RHEL4.3.ppc.rpm
94419ba6a9ca2b2c5fd6c270e27a0c0a  sendmail-cf-8.13.1-3.RHEL4.3.ppc.rpm
605283ccb19d98bc52c28455c4cb33ef  sendmail-devel-8.13.1-3.RHEL4.3.ppc.rpm
f94dff61d5f788c40a6da60bc54f35fd  sendmail-doc-8.13.1-3.RHEL4.3.ppc.rpm

s390:
c4a8cae7959a00d193e839219c451ccf  sendmail-8.13.1-3.RHEL4.3.s390.rpm
de299b0e3f4fd221c13ae2112a1cc8db  sendmail-cf-8.13.1-3.RHEL4.3.s390.rpm
af0b3dd5a26d1c2c375b9aa83bce4d66  sendmail-devel-8.13.1-3.RHEL4.3.s390.rpm
4839491332c2ff2fff4316655e3004b4  sendmail-doc-8.13.1-3.RHEL4.3.s390.rpm

s390x:
035e31b624879ea90785783a4565b91e  sendmail-8.13.1-3.RHEL4.3.s390x.rpm
a435f54801fe106550537e35078c115e  sendmail-cf-8.13.1-3.RHEL4.3.s390x.rpm
585b0b0c27f4fb729c31037f0887c375  sendmail-devel-8.13.1-3.RHEL4.3.s390x.rpm
8ba7aabd895330273240c1bcdbe295a8  sendmail-doc-8.13.1-3.RHEL4.3.s390x.rpm

x86_64:
798fc57962c9588440de9556f06fe3ab  sendmail-8.13.1-3.RHEL4.3.x86_64.rpm
126a565b097fcf2d48b94e735686d083  sendmail-cf-8.13.1-3.RHEL4.3.x86_64.rpm
8d60a35991c05a6fe959a529ade0959c  sendmail-devel-8.13.1-3.RHEL4.3.x86_64.rpm
0bcbe2d9682b2505c439650f693a0b6c  sendmail-doc-8.13.1-3.RHEL4.3.x86_64.rpm

Red Hat Enterprise Linux Desktop version 4:

SRPMS:
ftp://updates.redhat.com/enterprise/4Desktop/en/os/SRPMS/sendmail-8.13.1-3.RHEL4.3.src.rpm
e83dd254437bf7d4415a6be12c7a58da  sendmail-8.13.1-3.RHEL4.3.src.rpm

i386:
fba1a601a1ab106f67b22030ad090c28  sendmail-8.13.1-3.RHEL4.3.i386.rpm
8ed398a86f127e08ee31b19f14deafc4  sendmail-cf-8.13.1-3.RHEL4.3.i386.rpm
dade78569735970629e880969892b9f3  sendmail-devel-8.13.1-3.RHEL4.3.i386.rpm
3e656f2c678aa19f32eaad782abada8a  sendmail-doc-8.13.1-3.RHEL4.3.i386.rpm

x86_64:
798fc57962c9588440de9556f06fe3ab  sendmail-8.13.1-3.RHEL4.3.x86_64.rpm
126a565b097fcf2d48b94e735686d083  sendmail-cf-8.13.1-3.RHEL4.3.x86_64.rpm
8d60a35991c05a6fe959a529ade0959c  sendmail-devel-8.13.1-3.RHEL4.3.x86_64.rpm
0bcbe2d9682b2505c439650f693a0b6c  sendmail-doc-8.13.1-3.RHEL4.3.x86_64.rpm

Red Hat Enterprise Linux ES version 4:

SRPMS:
ftp://updates.redhat.com/enterprise/4ES/en/os/SRPMS/sendmail-8.13.1-3.RHEL4.3.src.rpm
e83dd254437bf7d4415a6be12c7a58da  sendmail-8.13.1-3.RHEL4.3.src.rpm

i386:
fba1a601a1ab106f67b22030ad090c28  sendmail-8.13.1-3.RHEL4.3.i386.rpm
8ed398a86f127e08ee31b19f14deafc4  sendmail-cf-8.13.1-3.RHEL4.3.i386.rpm
dade78569735970629e880969892b9f3  sendmail-devel-8.13.1-3.RHEL4.3.i386.rpm
3e656f2c678aa19f32eaad782abada8a  sendmail-doc-8.13.1-3.RHEL4.3.i386.rpm

ia64:
7b366e3fbfab8ce2a4cabff56c5dae2b  sendmail-8.13.1-3.RHEL4.3.ia64.rpm
4d2625fc1981329a7a348b360c9c2209  sendmail-cf-8.13.1-3.RHEL4.3.ia64.rpm
23e84e296ce17c5a18d2dd8ed3189d7e  sendmail-devel-8.13.1-3.RHEL4.3.ia64.rpm
5d4ca9a18cc0cd9148679fc8e4b9b339  sendmail-doc-8.13.1-3.RHEL4.3.ia64.rpm

x86_64:
798fc57962c9588440de9556f06fe3ab  sendmail-8.13.1-3.RHEL4.3.x86_64.rpm
126a565b097fcf2d48b94e735686d083  sendmail-cf-8.13.1-3.RHEL4.3.x86_64.rpm
8d60a35991c05a6fe959a529ade0959c  sendmail-devel-8.13.1-3.RHEL4.3.x86_64.rpm
0bcbe2d9682b2505c439650f693a0b6c  sendmail-doc-8.13.1-3.RHEL4.3.x86_64.rpm

Red Hat Enterprise Linux WS version 4:

SRPMS:
ftp://updates.redhat.com/enterprise/4WS/en/os/SRPMS/sendmail-8.13.1-3.RHEL4.3.src.rpm
e83dd254437bf7d4415a6be12c7a58da  sendmail-8.13.1-3.RHEL4.3.src.rpm

i386:
fba1a601a1ab106f67b22030ad090c28  sendmail-8.13.1-3.RHEL4.3.i386.rpm
8ed398a86f127e08ee31b19f14deafc4  sendmail-cf-8.13.1-3.RHEL4.3.i386.rpm
dade78569735970629e880969892b9f3  sendmail-devel-8.13.1-3.RHEL4.3.i386.rpm
3e656f2c678aa19f32eaad782abada8a  sendmail-doc-8.13.1-3.RHEL4.3.i386.rpm

ia64:
7b366e3fbfab8ce2a4cabff56c5dae2b  sendmail-8.13.1-3.RHEL4.3.ia64.rpm
4d2625fc1981329a7a348b360c9c2209  sendmail-cf-8.13.1-3.RHEL4.3.ia64.rpm
23e84e296ce17c5a18d2dd8ed3189d7e  sendmail-devel-8.13.1-3.RHEL4.3.ia64.rpm
5d4ca9a18cc0cd9148679fc8e4b9b339  sendmail-doc-8.13.1-3.RHEL4.3.ia64.rpm

x86_64:
798fc57962c9588440de9556f06fe3ab  sendmail-8.13.1-3.RHEL4.3.x86_64.rpm
126a565b097fcf2d48b94e735686d083  sendmail-cf-8.13.1-3.RHEL4.3.x86_64.rpm
8d60a35991c05a6fe959a529ade0959c  sendmail-devel-8.13.1-3.RHEL4.3.x86_64.rpm
0bcbe2d9682b2505c439650f693a0b6c  sendmail-doc-8.13.1-3.RHEL4.3.x86_64.rpm

These packages are GPG signed by Red Hat for security.  Our key and 
details on how to verify the signature are available from
https://www.redhat.com/security/team/key/#package

7. References:

http://www.kb.cert.org/vuls/id/834865
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-0058

8. Contact:

The Red Hat security contact is .  More contact
details at https://www.redhat.com/security/team/contact/

Copyright 2006 Red Hat, Inc.
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