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Vulnerability record · CVE-2001-0905 · published 18 October 2001

CVE-2001-0905: Procmail vulnerability

Procmail · Procmail

Race condition in signal handling of procmail 3.20 and earlier, when running setuid, allows local users to cause a denial of service or gain root privileges by sending a signal while a signal handling routine is already running.

6.2 CVSS 2.0 Medium EPSS 0.32% · top 77.3%
6.2CVSS 2.0 base score
0.32%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
14References
16 Jun 2026Last modified by NVD

Description

Race condition in signal handling of procmail 3.20 and earlier, when running setuid, allows local users to cause a denial of service or gain root privileges by sending a signal while a signal handling routine is already running.

AV:L/AC:H/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
ftp://ftp.FreeBSD.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-01:60.procmail.asc PatchVendor Advisory
http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000433
http://www.debian.org/security/2001/dsa-083 PatchVendor Advisory
http://www.linux-mandrake.com/en/security/2001/MDKSA-2001-085.php3 PatchVendor Advisory
http://www.redhat.com/support/errata/RHSA-2001-093.html PatchVendor Advisory
http://www.securityfocus.com/bid/3071 PatchVendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/6872
ftp://ftp.FreeBSD.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-01:60.procmail.asc PatchVendor Advisory
http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000433
http://www.debian.org/security/2001/dsa-083 PatchVendor Advisory
http://www.linux-mandrake.com/en/security/2001/MDKSA-2001-085.php3 PatchVendor Advisory
http://www.redhat.com/support/errata/RHSA-2001-093.html PatchVendor Advisory
http://www.securityfocus.com/bid/3071 PatchVendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/6872

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Related vulnerabilities

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

9.8CVE-2017-16844Procmail memory buffer overflow vulnerabilityHeap-based buffer overflow in the loadbuf function in formisc.c in formail in procmail 3.22 allows remote attackers to cause a denial of service (app…EPSS 13%7.5CVE-2014-3618Procmail memory buffer overflow vulnerabilityHeap-based buffer overflow in formisc.c in formail in procmail 3.22 allows remote attackers to cause a denial of service (crash) and possibly execute…EPSS 8.5%7.5CVE-1999-0439Procmail vulnerabilityBuffer overflow in procmail before version 3.12 allows remote or local attackers to execute commands via expansions in the procmailrc configuration f…EPSS 2.5%1.2CVE-1999-0475Procmail vulnerabilityA race condition in how procmail handles .procmailrc files allows a local user to read arbitrary files available to the user who is running procmail.EPSS 0.32%

Source: NIST National Vulnerability Database (record CVE-2001-0905), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.