fetchmail -- denial of service/crash from malicious POP3 server

In fetchmail 6.2.5.1, the remote code injection via POP3 UIDL was fixed, but a denial of service attack was introduced: Two possible NULL-pointer dereferences allow a malicious POP3 server to crash fetchmail by respondig with UID lines containing only the article number but no UID in violation of...

fetchmail -- remote root/code injection from malicious POP3 server

fetchmail's POP3/UIDL code does not truncate received UIDs properly. A malicious or compromised POP3 server can thus corrupt fetchmail's stack and inject code when fetchmail is using UIDL, either through configuration, or as a result of certain server capabilities. Note that fetchmail is run as...

Slackware 8.1 / 9.0 / 9.1 / current : fetchmail security update (SSA:2003-300-02)

Fetchmail is a mail-retrieval and forwarding utility. Upgraded fetchmail packages are available for Slackware 8.1, 9.0, 9.1, and -current. These fix a vulnerability where a specially crafted email could crash fetchmail, preventing the user from downloading or forwarding their email. %NASLMINLEVEL...

Debian DSA-216-1 : fetchmail - buffer overflow

Stefan Esser of e-matters discovered a buffer overflow in fetchmail, an SSL enabled POP3, APOP and IMAP mail gatherer/forwarder. When fetchmail retrieves a mail all headers that contain addresses are searched for local addresses. If a hostname is missing, fetchmail appends it but doesn't reserve...

Debian DSA-171-1 : fetchmail - buffer overflows

Stefan Esser discovered several buffer overflows and a broken boundary check within fetchmail. If fetchmail is running in multidrop mode these flaws can be used by remote attackers to crash it or to execute arbitrary code under the user id of the user running fetchmail. Depending on the...

Debian DSA-071-1 : fetchmail - memory corruption

Salvatore Sanfilippo found two remotely exploitable problems infetchmail while doing a security audit. In both the IMAP code and the POP3 code, the input isn't verified even though it's used to store a number in an array. Since no bounds checking is done this can be used by an attacker to write...

Debian DSA-060-1 : fetchmail - buffer overflow

Wolfram Kleff found a problem in fetchmail: it would crash when processing emails with extremely long headers. The problem was a buffer overflow in the header parser which could be exploited. %NASLMINLEVEL 70300 C Tenable Network Security, Inc. The descriptive text and package checks in this plug...

CVE-2002-1365

Heap-based buffer overflow in Fetchmail 6.1.3 and earlier does not account for the "@" character when determining buffer lengths for local addresses, which allows remote attackers to execute arbitrary code via a header with a large number of local addresses...

CVE-2002-1365

CVE-2002-1365 involves a heap-based buffer overflow in fetchmail 6.1.3 and earlier, caused by insufficient buffer space when expanding local addresses in mail headers (missing space for the hostname after an address). This can allow a remote attacker to execute arbitrary code with the privileges ...

CVE-2002-1365

Heap-based buffer overflow in Fetchmail 6.1.3 and earlier does not account for the "@" character when determining buffer lengths for local addresses, which allows remote attackers to execute arbitrary code via a header with a large number of local addresses...

GLSA-200403-10 : Fetchmail 6.2.5 fixes a remote DoS

The remote host is affected by the vulnerability described in GLSA-200403-10 Fetchmail 6.2.5 fixes a remote DoS Fetchmail versions 6.2.4 and earlier can be crashed by sending a specially crafted email to a Fetchmail user. This problem occurs because Fetchmail does not properly allocate memory for...

Mandrake Linux Security Advisory : fetchmail (MDKSA-2002:036)

A problem was discovered with versions of fetchmail prior to 5.9.10 that was triggered by retreiving mail from an IMAP server. The fetchmail client will allocate an array to store the sizes of the messages it is attempting to retrieve. This array size is determined by the number of messages the...

Mandrake Linux Security Advisory : fetchmail (MDKSA-2002:063)

Several buffer overflows and a boundary check error were discovered in all fetchmail versions prior to 6.1.0 by e-matters GmbH. These problems are vulnerable to crashes and/or arbitrary code execution by remote attackers if fetchmail is running in multidrop mode. The code execution would be done...

Mandrake Linux Security Advisory : fetchmail (MDKSA-2003:101)

A bug was discovered in fetchmail 6.2.4 where a specially crafted email message can cause fetchmail to crash. Thanks to Nalin Dahyabhai of Red Hat for providing the patch to fix the problem. %NASLMINLEVEL 70300 C Tenable Network Security, Inc. The descriptive text and package checks in this plugi...

Mandrake Linux Security Advisory : fetchmail (MDKSA-2003:011)

A vulnerability was discovered in all versions of fetchmail prior to 6.2.0 that allows a remote attacker to crash fetchmail and potentially execute arbitrary code by sending carefully crafted email wihch is then parsed by fetchmail. The vulnerability has been fixed in these patched packages of...

Mandrake Linux Security Advisory : fetchmail (MDKSA-2001:063)

Wolfram Kleff reported recently that the fetchmail program would segfault when receiving emails with a very large 'To:' header. This is due to a buffer overflow within the header parsing code, which can be exploited remotely. %NASLMINLEVEL 70300 C Tenable Network Security, Inc. The descriptive te...

Mandrake Linux Security Advisory : fetchmail (MDKSA-2001:072)

A vulnerability was found by Salvatore Sanfilippo in both the IMAP and POP3 code of fetchmail where the input is not verified and no bounds checking is done. This can be exploited by a remote attacker to write arbitrary data into memory. The attacker must have control of the mail server the clien...

SUSE-SA:2003:001: fetchmail

The remote host is missing the patch for the advisory SUSE-SA:2003:001 fetchmail. fetchmail is used to download emails from POP-, IMAP-, ETRN- or ODMR- servers. Stefan Esser of e-matters reported a bug in fetchmail's mail address expanding code which can lead to remote system compromise. When...

FreeBSD : fetchmail denial-of-service vulnerability (48)

The following package needs to be updated: fetchmail %NASLMINLEVEL 999999 @DEPRECATED@ This script has been deprecated by freebsdpkgac4b9d1867a911d880e30020ed76ef5a.nasl. Disabled on 2011/10/02. C Tenable Network Security, Inc. This script contains information extracted from VuXML : Copyright...

FreeBSD : Fetchmail address parsing vulnerability (47)

The following package needs to be updated: fetchmail %NASLMINLEVEL 999999 @DEPRECATED@ This script has been deprecated by freebsdpkgaf0296be245511d882e50020ed76ef5a.nasl. Disabled on 2011/10/02. C Tenable Network Security, Inc. This script contains information extracted from VuXML : Copyright...