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.

References

• https://nvd.nist.gov/vuln/detail/CVE-2005-1513
• https://lists.debian.org/debian-lts-announce/2020/06/msg00002.html
• https://security.gentoo.org/glsa/202007-01
• https://usn.ubuntu.com/4556-1/
• https://www.debian.org/security/2020/dsa-4692
• http://archives.neohapsis.com/archives/fulldisclosure/2005-05/0101.html
• http://packetstormsecurity.com/files/157805/Qualys-Security-Advisory-Qmail-Remote-Code-Execution.html
• http://packetstormsecurity.com/files/158203/Qmail-Local-Privilege-Escalation-Remote-Code-Execution.html
• http://seclists.org/fulldisclosure/2020/Jun/27
• http://seclists.org/fulldisclosure/2020/May/42
• http://securitytracker.com/id?1013911
• http://www.guninski.com/where_do_you_want_billg_to_go_today_4.html
• http://www.openwall.com/lists/oss-security/2020/05/19/8
• http://www.openwall.com/lists/oss-security/2020/05/20/2
• http://www.openwall.com/lists/oss-security/2020/05/20/5
• http://www.openwall.com/lists/oss-security/2020/06/16/2
• http://www.openwall.com/lists/oss-security/2023/06/06/3
• http://seclists.org/fulldisclosure/2023/Jun/2
• http://packetstormsecurity.com/files/172804/RenderDoc-1.26-Local-Privilege-Escalation-Remote-Code-Execution.html