Vulnerabilidades

sagredo qmail before 2026.04.07 allows tls_quit remote code execution because of popen in notlshosts_auto in qmail-remote.c.

An issue in Tencent Technology (Shenzhen) Company Limited QQMail iOS 6.6.4 allows attackers to access sensitive user information via supplying a crafted link.

We have already fixed this vulnerability in the following versions of QmailAgent: QmailAgent 3.0.2 ( 2021/08/25 ) and later

A cross-site scripting (XSS) vulnerability has been reported to affect QNAP device running QmailAgent. If exploited, this vulnerability allows remote attackers to inject malicious code. We have already fixed this vulnerability in the following versions of QmailAgent: QmailAgent 3.0.2 ( 2021/08/25 ) and later

In s/qmail through 4.0.07, an active MitM can inject arbitrary plaintext commands into a STARTTLS encrypted session between an SMTP client and s/qmail. This allows e-mail messages and user credentials to be sent to the MitM attacker.

qmail-verify as used in netqmail 1.06 is prone to an information disclosure vulnerability. A local attacker can test for the existence of files and directories anywhere in the filesystem because qmail-verify runs as root and tests for the existence of files in the attacker's home directory, without dropping its…

qmail-verify as used in netqmail 1.06 is prone to a mail-address verification bypass vulnerability.

masqmail 0.2.21 through 0.2.30 improperly calls seteuid() in src/log.c and src/masqmail.c that results in improper privilege dropping.

The STARTTLS implementation in qmail-smtpd.c in qmail-smtpd in the netqmail-1.06-tls patch for netqmail 1.06 does not properly restrict I/O buffering, which allows man-in-the-middle attackers to insert commands into encrypted SMTP sessions by sending a cleartext command that is processed after TLS is in place, related…

Gazatem QMail Mailing List Manager 1.2 stores sensitive information under the web root with insufficient access control, which allows remote attackers to download the database file via a direct request for qmail.mdb.

Buffer overflow in qmailadmin.c in QmailAdmin before 1.2.10 allows remote attackers to execute arbitrary code via a long PATH_INFO environment variable.

masqmail before 0.2.18 allows local users to overwrite arbitrary files via a symlink attack on a log file.

masqmail before 0.2.18 allows remote attackers to execute arbitrary commands via crafted e-mail addresses that are not properly sanitized when creating a failed delivery message.

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.

Integer signedness error in the qmail_put and substdio_put functions 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 number of SMTP RCPT TO commands.

commands.c 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 long SMTP command without a space character, which causes an array to be referenced with a negative index.

Buffer overflow in qmailadmin allows local users to gain privileges via a long QMAILADMIN_TEMPLATEDIR environment variable.

Multiple buffer overflows in conf.c for Masqmail 0.1.x before 0.1.17, and 0.2.x before 0.2.15, allow local users to gain privileges via certain entries in the configuration file (-C option).

Vulnerability in MasqMail before 0.1.15 allows local users to gain privileges via piped aliases.

Denial of service in Qmail through long SMTP commands.

Denial of service in Qmail by specifying a large number of recipients with the RCPT command.