Fetchmail email denial of service
| fetchmail-email-dos (13450) |  Low Risk |
Description:
Fetchmail is vulnerable to a denial of service. By sending a specially-crafted email, a remote attacker can cause the program to crash.
Platforms Affected:
- Eric S. Raymond, Fetchmail 6.2.4
- Gentoo, Linux
- Immunix, Immunix OS 7+-beta
- MandrakeSoft, Mandrake Linux 9.2
- OpenPKG, OpenPKG 1.3
- OpenPKG, OpenPKG 2.0
- OpenPKG, OpenPKG CURRENT
- SCO, Caldera OpenLinux Server 3.1.1
- SCO, Caldera OpenLinux Workstation 3.1.1
- Slackware, Slackware Linux 2.0
- Slackware, Slackware Linux 9.0
- Slackware, Slackware Linux 9.1
- Slackware, Slackware Linux current
- Turbolinux, Turbolinux 10 Desktop
- Turbolinux, Turbolinux 7 Server
- Turbolinux, Turbolinux 7 Workstation
- Turbolinux, Turbolinux 8 Server
- Turbolinux, Turbolinux 8 Workstation
- Turbolinux, Turbolinux Advanced Server 6
- Turbolinux, Turbolinux Server 6.1
- Turbolinux, Turbolinux Server 6.5
- Turbolinux, Turbolinux Workstation 6.0
Remedy:
For Mandrake Linux:
Upgrade to the latest fetchmail package, as listed below. Refer to MandrakeSoft Security Advisory MDKSA-2003:101 : fetchmail for more information. See References.
Mandrake Linux 9.2: 6.2.4-1.1.92mdk or later
For Immunix 7+:
Upgrade to the latest version of fetchmail (5.9.0-10_imnx_1 or later), as listed in Immunix Secured OS Security Advisory IMNX-2003-7+-023-01. See References.
For Slackware Linux:
Upgrade to the latest fetchmail package, as listed below. Refer to slackware-security Mailing List, Mon, 27 Oct 2003 12:07:56 -0800 (PST) for more information. See References.
Slackware Linux 8.1, 9.0, 9.1, and -current: 6.2.5 or later
For Turbolinux:
Upgrade to the latest fetchmail package (6.2.5-1 or later), as listed in Turbolinux Security Advisory TLSA-2003-61. See References.
For Mac OS X:
Upgrade to Security Update 2003-12-19 or later, as recommended in AppleCare Knowledge Base Document 61798. See References.
For Caldera OpenLinux 3.1.1 Server and Workstation:
Upgrade to the latest fetchmail package, as listed below. Refer to SCO Security Advisory CSSA-2004-004.0 for more information. See References.
Caldera OpenLinux 3.1.1 Server and Workstation: 6.2.5-1 or later
For OpenPKG:
Refer to OpenPKG Security Advisory OpenPKG-SA-2004.012 for patch, upgrade, or suggested workaround information. See References.
For other distributions:
Contact your vendor for upgrade or patch information.
Consequences:
Denial of Service
References:
- AppleCare Knowledge Base Document 61798, Apple Security Updates at http://docs.info.apple.com/article.html?artnum=61798.
- Fetchmail Web Page, The fetchmail Home Page at http://catb.org/~esr/fetchmail/.
- Immunix Secured OS Security Advisory IMNX-2003-7+-023-01, fetchmail, fetchmailconf at http://www.linuxsecurity.com/content/view/105474/105/. (From LinuxSecurity archive)
- SCO Security Advisory CSSA-2004-004.0, OpenLinux: Fetchmail 6.2.4 and earlier remote dennial of service at http://www.linuxsecurity.com/content/view/105774/98/.
- slackware-security Mailing List, Mon, 27 Oct 2003 12:07:56 -0800 (PST), fetchmail security update (SSA:2003-300-02) at http://www.slackware.com/security/viewer.php?l=slackware-security&y=2003&m=slackware-security.383885.
- BID-8843: Eric S. Raymond Fetchmail Unspecified Denial of Service Vulnerability
- CVE-2003-0792: Fetchmail 6.2.4 and earlier does not properly allocate memory for long lines, which allows remote attackers to cause a denial of service (crash) via a certain email.
- GLSA-200403-10: Fetchmail 6.2.5 fixes a remote DoS
- MDKSA-2003:101: Updated fetchmail packages fix DoS vulnerability
- OpenPKG-SA-2004.012: fetchmail
Reported:
Oct 16, 2003
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