Issued:
2012-06-28
Updated:
2012-06-28

RHBA-2012:1048 - libssh2 bug fix update

Synopsis

libssh2 bug fix update

Type/Severity

Bug Fix Advisory

Topic

Updated libssh2 packages that fix one bug are now available for Red Hat Enterprise Linux 6.

Description

The libssh2 packages provide a library that implements the SSH2 protocol.

This update fixes the following bug:

  • Previously, libssh2 incorrectly returned the LIBSSH2_ERROR_EAGAIN error code when operating in blocking mode. The error code is used by libssh2 internally to initiate a blocking operation on a socket. The error code was, however, not properly cleared on success and leaked through the public API of libssh2. An upstream patch has been applied to clear the error code prior to initiating the blocking operation, and libssh2 no longer returns LIBSSH2_ERROR_EAGAIN when operating in blocking mode. (BZ#834211)

All users of libssh2 are advised to upgrade to these updated packages, which fix this bug. After installing these updated packages, all running applications using libssh2 have to be restarted for this update to take effect.

Solution

Before applying this update, make sure that all previously-released errata relevant to your system have been applied.

This update is available via Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/knowledge/articles/11258

Affected Products

ProductVersionArch
Red Hat Enterprise Linux for x86_64 - Extended Update Support6.3x86_64
Red Hat Enterprise Linux for x86_64 - Extended Update Support6.3i386
Red Hat Enterprise Linux for Scientific Computing6x86_64
Red Hat Enterprise Linux for Power, big endian6ppc64
Red Hat Enterprise Linux for Power, big endian - Extended Update Support6.3ppc64
Red Hat Enterprise Linux for IBM z Systems6s390x
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support6.3s390x
Red Hat Enterprise Linux Workstation6x86_64
Red Hat Enterprise Linux Workstation6i386
Red Hat Enterprise Linux Server6x86_64
Red Hat Enterprise Linux Server6i386
Red Hat Enterprise Linux Server from RHUI6x86_64
Red Hat Enterprise Linux Server from RHUI6i386
Red Hat Enterprise Linux Server - Retired Extended Life Cycle Support6x86_64
Red Hat Enterprise Linux Server - Extended Update Support from RHUI6.3x86_64
Red Hat Enterprise Linux Server - Extended Update Support from RHUI6.3i386
Red Hat Enterprise Linux Server - Extended Life Cycle Support6x86_64
Red Hat Enterprise Linux Server - Extended Life Cycle Support6i386
Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension6x86_64
Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension6i386
Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension (for IBM z Systems)6s390x
Red Hat Enterprise Linux Server - Extended Life Cycle Support (for IBM z Systems)6s390x
Red Hat Enterprise Linux Desktop6x86_64
Red Hat Enterprise Linux Desktop6i386

Updated Packages

  • libssh2-devel-1.2.2-11.el6_3.s390.rpm
  • libssh2-devel-1.2.2-11.el6_3.x86_64.rpm
  • libssh2-1.2.2-11.el6_3.s390x.rpm
  • libssh2-devel-1.2.2-11.el6_3.ppc64.rpm
  • libssh2-debuginfo-1.2.2-11.el6_3.ppc.rpm
  • libssh2-debuginfo-1.2.2-11.el6_3.ppc64.rpm
  • libssh2-debuginfo-1.2.2-11.el6_3.s390.rpm
  • libssh2-1.2.2-11.el6_3.ppc64.rpm
  • libssh2-docs-1.2.2-11.el6_3.x86_64.rpm
  • libssh2-docs-1.2.2-11.el6_3.i686.rpm
  • libssh2-docs-1.2.2-11.el6_3.ppc64.rpm
  • libssh2-1.2.2-11.el6_3.src.rpm
  • libssh2-docs-1.2.2-11.el6_3.s390x.rpm
  • libssh2-debuginfo-1.2.2-11.el6_3.x86_64.rpm
  • libssh2-debuginfo-1.2.2-11.el6_3.i686.rpm
  • libssh2-1.2.2-11.el6_3.ppc.rpm
  • libssh2-debuginfo-1.2.2-11.el6_3.s390x.rpm
  • libssh2-devel-1.2.2-11.el6_3.i686.rpm
  • libssh2-devel-1.2.2-11.el6_3.s390x.rpm
  • libssh2-1.2.2-11.el6_3.x86_64.rpm
  • libssh2-1.2.2-11.el6_3.s390.rpm
  • libssh2-1.2.2-11.el6_3.i686.rpm
  • libssh2-devel-1.2.2-11.el6_3.ppc.rpm

Fixes

CVEs

(none)

References

(none)

Additional information