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fetchmail: STARTTLS session encryption bypassing

🗓️ 10 May 2022 14:09:37Reported by RedHatType 
redhat
 redhat
🔗 access.redhat.com👁 23 Views

Fetchmail before 6.4.22 may bypass STARTTLS enforcement in IMAP PREAUTH scenarios.

Related
Packages
Refs
OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux8aarch64fetchmail6.4.24-1.el8fetchmail-6.4.24-1.el8.aarch64.rpm
Red Hat Enterprise Linux8ppc64lefetchmail6.4.24-1.el8fetchmail-6.4.24-1.el8.ppc64le.rpm
Red Hat Enterprise Linux8s390xfetchmail6.4.24-1.el8fetchmail-6.4.24-1.el8.s390x.rpm
Red Hat Enterprise Linux8x86_64fetchmail6.4.24-1.el8fetchmail-6.4.24-1.el8.x86_64.rpm
Red Hat Enterprise Linux8aarch64fetchmail-debuginfo6.4.24-1.el8fetchmail-debuginfo-6.4.24-1.el8.aarch64.rpm
Red Hat Enterprise Linux8ppc64lefetchmail-debuginfo6.4.24-1.el8fetchmail-debuginfo-6.4.24-1.el8.ppc64le.rpm
Red Hat Enterprise Linux8s390xfetchmail-debuginfo6.4.24-1.el8fetchmail-debuginfo-6.4.24-1.el8.s390x.rpm
Red Hat Enterprise Linux8x86_64fetchmail-debuginfo6.4.24-1.el8fetchmail-debuginfo-6.4.24-1.el8.x86_64.rpm
Red Hat Enterprise Linux8aarch64fetchmail-debugsource6.4.24-1.el8fetchmail-debugsource-6.4.24-1.el8.aarch64.rpm
Red Hat Enterprise Linux8ppc64lefetchmail-debugsource6.4.24-1.el8fetchmail-debugsource-6.4.24-1.el8.ppc64le.rpm
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21 Nov 2025 18:30Current
5.8Medium risk
Vulners AI Score5.8
CVSS 24.3
CVSS 3.15.9
EPSS0.00925
23