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Vulnerability record · CVE-2001-1009 · published 31 August 2001

CVE-2001-1009: Fetchmail permissions and access controls vulnerability

Fetchmail · Fetchmail

Fetchmail (aka fetchmail-ssl) before 5.8.17 allows a remote malicious (1) IMAP server or (2) POP/POP3 server to overwrite arbitrary memory and possibly gain privileges via a negative index number as part of a response to a LIST request.

10.0 CVSS 2.0 High EPSS 6.5% · top 6.4% CWE-264 · Permissions and access controls
10.0CVSS 2.0 base score
6.5%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
20References, 6 tagged exploit
16 Jun 2026Last modified by NVD

Description

Fetchmail (aka fetchmail-ssl) before 5.8.17 allows a remote malicious (1) IMAP server or (2) POP/POP3 server to overwrite arbitrary memory and possibly gain privileges via a negative index number as part of a response to a LIST request.

AV:N/AC:L/Au:N/C:C/I:C/A:C

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://archives.neohapsis.com/archives/bugtraq/2001-08/0118.html ExploitPatchVendor Advisory
http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000419
http://www.debian.org/security/2001/dsa-071
http://www.iss.net/security_center/static/6965.php
http://www.linux-mandrake.com/en/security/2001/MDKSA-2001-072.php3
http://www.linuxsecurity.com/advisories/other_advisory-1555.html PatchVendor Advisory
http://www.novell.com/linux/security/advisories/2001_026_fetchmail_txt.html
http://www.redhat.com/support/errata/RHSA-2001-103.html PatchVendor Advisory
http://www.securityfocus.com/bid/3164 ExploitPatchVendor Advisory
http://www.securityfocus.com/bid/3166 ExploitPatchVendor Advisory
http://archives.neohapsis.com/archives/bugtraq/2001-08/0118.html ExploitPatchVendor Advisory
http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000419
http://www.debian.org/security/2001/dsa-071
http://www.iss.net/security_center/static/6965.php
http://www.linux-mandrake.com/en/security/2001/MDKSA-2001-072.php3
http://www.linuxsecurity.com/advisories/other_advisory-1555.html PatchVendor Advisory
http://www.novell.com/linux/security/advisories/2001_026_fetchmail_txt.html
http://www.redhat.com/support/errata/RHSA-2001-103.html PatchVendor Advisory
http://www.securityfocus.com/bid/3164 ExploitPatchVendor Advisory
http://www.securityfocus.com/bid/3166 ExploitPatchVendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

10.0CVE-2001-0101Fetchmail vulnerabilityVulnerability in fetchmail 5.5.0-2 and earlier in the AUTHENTICATE GSSAPI command.EPSS 1.8%7.8CVE-2006-5867Fetchmail improper input validation vulnerabilityfetchmail before 6.3.6-rc4 does not properly enforce TLS and may transmit cleartext passwords over unsecured links if certain circumstances occur, wh…EPSS 4.4%7.8CVE-2006-5974Fetchmail improper input validation vulnerabilityfetchmail 6.3.5 and 6.3.6 before 6.3.6-rc4, when refusing a message delivered via the mda option, allows remote attackers to cause a denial of servic…EPSS 3.9%7.8CVE-2005-4348Fetchmail vulnerabilityfetchmail before 6.3.1 and before 6.2.5.5, when configured for multidrop mode, allows remote attackers to cause a denial of service (application cras…EPSS 3.6%7.5CVE-2021-36386Fetchmail vulnerabilityreport_vbuild in report.c in Fetchmail before 6.4.20 sometimes omits initialization of the vsnprintf va_list argument, which might allow mail servers…EPSS 2.6%7.5CVE-2002-1365Fetchmail memory buffer overflow vulnerabilityHeap-based buffer overflow in Fetchmail 6.1.3 and earlier does not account for the "@" character when determining buffer lengths for local addresses,…EPSS 5.0%7.5CVE-2002-1174Fetchmail memory buffer overflow vulnerabilityBuffer overflows in Fetchmail 6.0.0 and earlier allow remote attackers to cause a denial of service (crash) or execute arbitrary code via (1) long he…EPSS 4.7%7.5CVE-2001-0819Fetchmail memory buffer overflow vulnerabilityA buffer overflow in Linux fetchmail before 5.8.6 allows remote attackers to execute arbitrary code via a large 'To:' field in an email header.EPSS 6.4%

Source: NIST National Vulnerability Database (record CVE-2001-1009), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.