Sendmail nested multipart MIME message denial of service
| sendmail-multipart-mime-dos (27128) |  Medium Risk |
Description:
Multiple products that utilize the Sendmail MTA (Mail Transfer Agent) are vulnerable to a denial of service caused by improper handling of deeply nested multipart MIME messages. A remote attacker could exploit this vulnerability using a malformed MIME message to consume large amounts of system resources or cause the mail queue process to abort.
Consequences:
Denial of Service
Remedy:
Upgrade to the latest version of Sendmail (8.13.7 or later), available from the Sendmail Web site. See References.
For Sendmail Switch, Intelligent Quarantine, Sendmail Advanced Message Store (SAMS), Sendmail Sentrion, Mailstream Gatekeeper, Mailstream Governor and Sendmail Pro:
Refer to Sendmail, Inc. Security Advisory Sendmail-SA-200605-01 for patch, upgrade or suggested workaround information. See References.
For Red Hat Linux:
Refer to RHSA-2006:0515-10 for patch, upgrade, or suggested workaround information. See References.
F-Secure Messaging Security Gateway, X200, P600 and P800:
Refer to F-Secure Security Bulletin FSC-2006-5 for patch, upgrade, or suggested workaround information. See References.
For OpenBSD:
Refer to OpenBSD 3.9 release errata for patch, upgrade, or suggested workaround information. See References.
For Debian GNU/Linux:
Refer to DSA-1155-2 for patch, upgrade, or suggested workaround information. See References.
For SUSE Linux:
Refer to SUSE-SA:2006:032 for patch, upgrade, or suggested workaround information. See References.
For other distributions:
Contact your vendor for patch or upgrade information.
References:
- F-Secure Security Bulletin FSC-2006-5: Deeply nested malformed MIME denial of service attack.
- FreeBSD Security Advisory FreeBSD-SA-06:17.sendmail: Incorrect multipart message handling in Sendmail.
- OpenBSD 3.9 release errata: 003: SECURITY FIX: June 15, 2006.
- Sendmail Web site: Sendmail 8.13.7.
- Sendmail Web site: Sendmail.com - Products - Routing, Policy, Directories, Storage and Access, Appliances.
- Sendmail, Inc. Security Advisory Sendmail-SA-200605-01: Deeply nested malformed MIME denial of service attack.
- SGI Security Advisory 20060601-01-P: Security update for Sendmail.
- Sun Alert ID: 102460: A Security Vulnerability in sendmail(1M) Versions Prior to 8.13.7 May Allow a Denial of Service (DoS) To Occur.
- ASA-2006-139: sendmail security update (RHSA-2006-0515)
- ASA-2006-148: Sun Alert Notifications from Sun Weekly Report dated June 17 2006
- BID-18433: Sendmail Malformed MIME Message Denial Of Service Vulnerability
- CVE-2006-1173: Sendmail before 8.13.7 allows remote attackers to cause a denial of service via deeply nested, malformed multipart MIME messages that exhaust the stack during the recursive mime8to7 function for performing 8-bit to 7-bit conversion, which prevents Sendmail from delivering queued messages and might lead to disk consumption by core dump files.
- DSA-1155: sendmail -- programming error
- GLSA-200606-19: Sendmail: Denial of Service
- MDKSA-2006:104: Updated sendmail packages fix remotely exploitable vulnerability
- OSVDB ID: 26197: Sendmail Multi-Part MIME Message Handling DoS
- RHSA-2006-0515: sendmail security update
- SA15779: Sendmail Multi-Part MIME Message Handling Denial of Service
- SA20473: HP Tru64 UNIX and HP Internet Express Sendmail Vulnerability
- SA20726: FortiMail Sendmail Multi-Part MIME Message Handling Vulnerability
- SA21042: F-Secure Messaging Security Gateway Sendmail Vulnerability
- SA21647: Avaya CMS / IR Sun Solaris Sendmail Denial of Service
- SECTRACK ID: 1016295: Sendmail Excessive Recursion in Processing Malformed MIME Messages Lets Remote Users Deny Service
- SUSE-SA:2006:032: sendmail remote denial of service
Platforms Affected:
- Debian Debian Linux 3.1
- F-Secure Messaging Security Gateway P600 3.1.0 build600 prior
- F-Secure Messaging Security Gateway P600 3.2.2 build 40 prior
- F-Secure Messaging Security Gateway P600 3.2.3 build 37 prior
- F-Secure Messaging Security Gateway P600 3.2.4 build 40 prior
- F-Secure Messaging Security Gateway P800 3.1.0 build600 prior
- F-Secure Messaging Security Gateway P800 3.2.2 build 40 prior
- F-Secure Messaging Security Gateway P800 3.2.3 build 37 prior
- F-Secure Messaging Security Gateway P800 3.2.4 build 40 prior
- F-Secure Messaging Security Gateway X200 3.1.0 build600 prior
- F-Secure Messaging Security Gateway X200 3.2.2 build 40 prior
- F-Secure Messaging Security Gateway X200 3.2.3 build 37 prior
- F-Secure Messaging Security Gateway X200 3.2.4 build 40 prior
- Gentoo Linux
- MandrakeSoft Mandrake Linux 2006 X86_64
- MandrakeSoft Mandrake Linux 2006
- MandrakeSoft Mandrake Linux LE2005 X86_64
- MandrakeSoft Mandrake Linux LE2005
- MandrakeSoft Mandrake Linux Corporate Server 3.0
- MandrakeSoft Mandrake Linux Corporate Server 3.0 X86_64
- MandrakeSoft Mandrake Multi Network Firewall 2.0
- Novell UnitedLinux 1.0
- OpenBSD OpenBSD 3.9
- RedHat Enterprise Linux 2.1 AS
- RedHat Enterprise Linux 2.1 ES
- RedHat Enterprise Linux 2.1 WS
- RedHat Enterprise Linux 3 Desktop
- RedHat Enterprise Linux 3 WS
- RedHat Enterprise Linux 3 ES
- RedHat Enterprise Linux 3 AS
- RedHat Enterprise Linux 4 ES
- RedHat Enterprise Linux 4 Desktop
- RedHat Enterprise Linux 4 AS
- RedHat Enterprise Linux 4 WS
- RedHat Linux Advanced Workstation 2.1 Itanium
- Sendmail Advanced Message Server
- Sendmail Intelligent Quarantine 3.0
- Sendmail Mailstream Gatekeeper
- Sendmail Mailstream Governor
- Sendmail Sendmail 8.10
- Sendmail Sendmail 8.10.1
- Sendmail Sendmail 8.10.2
- Sendmail Sendmail 8.11
- Sendmail Sendmail 8.11.1
- Sendmail Sendmail 8.11.2
- Sendmail Sendmail 8.11.3
- Sendmail Sendmail 8.11.4
- Sendmail Sendmail 8.11.5
- Sendmail Sendmail 8.11.6
- Sendmail Sendmail 8.11.7
- Sendmail Sendmail 8.12 Beta10
- Sendmail Sendmail 8.12 Beta12
- Sendmail Sendmail 8.12 Beta16
- Sendmail Sendmail 8.12 Beta5
- Sendmail Sendmail 8.12 Beta7
- Sendmail Sendmail 8.12.0
- Sendmail Sendmail 8.12.1
- Sendmail Sendmail 8.12.10
- Sendmail Sendmail 8.12.11
- Sendmail Sendmail 8.12.2
- Sendmail Sendmail 8.12.3
- Sendmail Sendmail 8.12.4
- Sendmail Sendmail 8.12.5
- Sendmail Sendmail 8.12.6
- Sendmail Sendmail 8.12.7
- Sendmail Sendmail 8.12.8
- Sendmail Sendmail 8.12.9
- Sendmail Sendmail 8.13.3
- Sendmail Sendmail 8.13.4
- Sendmail Sendmail 8.13.5
- Sendmail Sendmail 8.13.6
- Sendmail Sendmail 8.8.8
- Sendmail Sendmail 8.9.0
- Sendmail Sendmail 8.9.1
- Sendmail Sendmail 8.9.2
- Sendmail Sendmail 8.9.3
- Sendmail Sendmail Switch 3.1.3
- Sendmail Sendmail Switch 3.1.8
- Sendmail Sendmail Switch 3.2.0
- Sendmail Sentrion 1.5.1
- SuSE Linux Enterprise Server 8
- SUSE SuSE Linux 10.0
- SUSE SuSE Linux 10.1
- SUSE SuSE Linux 9.1
- SUSE SuSE Linux 9.2
- SUSE SuSE Linux 9.3
- SuSE SuSE SLES 9
- Turbolinux Turbolinux 10 Server
- Turbolinux Turbolinux 10 Server x64 Ed
- Turbolinux Turbolinux 7 Server
- Turbolinux Turbolinux 8 Server
- Turbolinux Turbolinux 8 Workstation
- Turbolinux Turbolinux Appliance Server 1.0 Hosting Ed
- Turbolinux Turbolinux Appliance Server 1.0 Workgroup Ed
- Turbolinux Turbolinux Appliance Server 2.0
Reported:
Jun 14, 2006
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