The sm_close_on_exec function in conf.c in sendmail before 8.14.9 has arguments in the wrong order, and consequently skips setting expected FD_CLOEXEC flags, which allows local users to access unintended high-numbered file descriptors via a custom mail-delivery program.
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Debian | 12 | all | sendmail | < 8.14.4-6 | sendmail_8.14.4-6_all.deb |
Debian | 11 | all | sendmail | < 8.14.4-6 | sendmail_8.14.4-6_all.deb |
Debian | 10 | all | sendmail | < 8.14.4-6 | sendmail_8.14.4-6_all.deb |
Debian | 999 | all | sendmail | < 8.14.4-6 | sendmail_8.14.4-6_all.deb |
Debian | 13 | all | sendmail | < 8.14.4-6 | sendmail_8.14.4-6_all.deb |