Integer overflow in the stralloc_readyplus function in qmail, when running on 64 bit platforms with a large amount of virtual memory, allows remote attackers to cause a denial of service and possibly execute arbitrary code via a large SMTP request.
https://www.debian.org/security/2020/dsa-4692
https://usn.ubuntu.com/4556-1/
https://security.gentoo.org/glsa/202007-01
https://lists.debian.org/debian-lts-announce/2020/06/msg00002.html
http://seclists.org/fulldisclosure/2020/Jun/27
http://packetstormsecurity.com/files/158203/Qmail-Local-Privilege-Escalation-Remote-Code-Execution.html
http://www.openwall.com/lists/oss-security/2020/06/16/2
http://www.openwall.com/lists/oss-security/2020/05/20/5
http://www.openwall.com/lists/oss-security/2020/05/20/2
Source: Mitre, NVD
Published: 2005-05-11
Updated: 2025-04-03
Base Score: 5
Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P
Severity: Medium
Base Score: 9.8
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Severity: Critical
EPSS: 0.11531