RHSA-2011:0423Medium

Red Hat Security Advisory: postfix security update

Published
April 6, 2011
Last Modified
June 25, 2026

🔗 CVE IDs covered (1)

CVE-2011-0411 →

📋 Description

CVE-2011-0411 — postfix: SMTP commands injection during plaintext to TLS session switch

🎯 Affected products52

  • Red Hat Enterprise Linux Desktop (v. 6)
  • Red Hat Enterprise Linux Desktop Optional (v. 6)
  • Red Hat Enterprise Linux HPC Node (v. 6)
  • Red Hat Enterprise Linux HPC Node Optional (v. 6)
  • Red Hat Enterprise Linux Server (v. 6)
  • Red Hat Enterprise Linux Server Optional (v. 6)
  • Red Hat Enterprise Linux Workstation (v. 6)
  • Red Hat Enterprise Linux Workstation Optional (v. 6)
  • postfix-2:2.6.6-2.1.el6_0.i686 as a component of Red Hat Enterprise Linux Desktop (v. 6)
  • postfix-2:2.6.6-2.1.el6_0.i686 as a component of Red Hat Enterprise Linux Server (v. 6)
  • postfix-2:2.6.6-2.1.el6_0.i686 as a component of Red Hat Enterprise Linux Workstation (v. 6)
  • postfix-2:2.6.6-2.1.el6_0.ppc64 as a component of Red Hat Enterprise Linux Server (v. 6)
  • postfix-2:2.6.6-2.1.el6_0.s390x as a component of Red Hat Enterprise Linux Server (v. 6)
  • postfix-2:2.6.6-2.1.el6_0.src as a component of Red Hat Enterprise Linux Desktop (v. 6)
  • postfix-2:2.6.6-2.1.el6_0.src as a component of Red Hat Enterprise Linux Desktop Optional (v. 6)
  • postfix-2:2.6.6-2.1.el6_0.src as a component of Red Hat Enterprise Linux HPC Node (v. 6)
  • postfix-2:2.6.6-2.1.el6_0.src as a component of Red Hat Enterprise Linux HPC Node Optional (v. 6)
  • postfix-2:2.6.6-2.1.el6_0.src as a component of Red Hat Enterprise Linux Server (v. 6)
  • postfix-2:2.6.6-2.1.el6_0.src as a component of Red Hat Enterprise Linux Server Optional (v. 6)
  • postfix-2:2.6.6-2.1.el6_0.src as a component of Red Hat Enterprise Linux Workstation (v. 6)
  • postfix-2:2.6.6-2.1.el6_0.src as a component of Red Hat Enterprise Linux Workstation Optional (v. 6)
  • postfix-2:2.6.6-2.1.el6_0.x86_64 as a component of Red Hat Enterprise Linux Desktop (v. 6)
  • postfix-2:2.6.6-2.1.el6_0.x86_64 as a component of Red Hat Enterprise Linux HPC Node (v. 6)
  • postfix-2:2.6.6-2.1.el6_0.x86_64 as a component of Red Hat Enterprise Linux Server (v. 6)
  • postfix-2:2.6.6-2.1.el6_0.x86_64 as a component of Red Hat Enterprise Linux Workstation (v. 6)
  • postfix-debuginfo-2:2.6.6-2.1.el6_0.i686 as a component of Red Hat Enterprise Linux Desktop (v. 6)
  • postfix-debuginfo-2:2.6.6-2.1.el6_0.i686 as a component of Red Hat Enterprise Linux Desktop Optional (v. 6)
  • postfix-debuginfo-2:2.6.6-2.1.el6_0.i686 as a component of Red Hat Enterprise Linux Server (v. 6)
  • postfix-debuginfo-2:2.6.6-2.1.el6_0.i686 as a component of Red Hat Enterprise Linux Server Optional (v. 6)
  • postfix-debuginfo-2:2.6.6-2.1.el6_0.i686 as a component of Red Hat Enterprise Linux Workstation (v. 6)
  • +22 more not shown

✅ Remediation

Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259

🔗 References (4)