- Issued:
- 2012-03-28
- Updated:
- 2012-03-28
RHBA-2012:0431 - libssh2 bug fix update
Synopsis
libssh2 bug fix update
Type/Severity
Bug Fix Advisory
Topic
An updated libssh2 package that fixes two bugs is now available for Red Hat Enterprise Linux 6.
Description
The libssh2 package provides a library that implements the SSH2 protocol.
This update fixes the following bugs:
-
Previously, an insufficient data type was used for certain bit shift operations in the libssh2 code. This could result in an arithmetic overflow, which caused the curl utility to terminate unexpectedly when downloading files larger than 2 GB over the SFTP protocol. With this update, the underlying code has been modified to use the correct data type and curl now works as expected in the scenario described. (BZ#803389)
-
When sending a large amount of data over SSH, libssh2 could, under certain circumstances, fail to resume an interrupted key exchange. Instead of that, further data was erroneously sent, which caused the remote site to close the connection immediately. This update modifies the code of libssh2 so that libssh2 now properly resumes the interrupted key exchange before sending any further data. The connection remains open and the data transfer proceeds as expected. (BZ#805026)
All users of libssh2 are advised to upgrade to this updated package, which fixes these bugs. After installing this updated package, all running applications using libssh2 have to be restarted for this update to take effect.
Solution
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 This content is not included.https://access.redhat.com/kb/docs/DOC-11259
Affected Products
| Product | Version | Arch |
|---|---|---|
| Red Hat Storage | 2.0 | x86_64 |
| Red Hat Storage for Public Cloud (via RHUI) | 2.0 | x86_64 |
| Red Hat Gluster Storage Server for On-premise | 2.0 | x86_64 |
| Red Hat Enterprise Linux for x86_64 - Extended Update Support | 6.2 | x86_64 |
| Red Hat Enterprise Linux for x86_64 - Extended Update Support | 6.2 | i386 |
| Red Hat Enterprise Linux for Scientific Computing | 6 | x86_64 |
| Red Hat Enterprise Linux for Power, big endian | 6 | ppc64 |
| Red Hat Enterprise Linux for Power, big endian - Extended Update Support | 6.2 | ppc64 |
| Red Hat Enterprise Linux for IBM z Systems | 6 | s390x |
| Red Hat Enterprise Linux for IBM z Systems - Extended Update Support | 6.2 | s390x |
| Red Hat Enterprise Linux Workstation | 6 | x86_64 |
| Red Hat Enterprise Linux Workstation | 6 | i386 |
| Red Hat Enterprise Linux Server | 6 | x86_64 |
| Red Hat Enterprise Linux Server | 6 | i386 |
| Red Hat Enterprise Linux Server from RHUI | 6 | x86_64 |
| Red Hat Enterprise Linux Server from RHUI | 6 | i386 |
| Red Hat Enterprise Linux Server - Retired Extended Life Cycle Support | 6 | x86_64 |
| Red Hat Enterprise Linux Server - Extended Update Support from RHUI | 6.2 | x86_64 |
| Red Hat Enterprise Linux Server - Extended Update Support from RHUI | 6.2 | i386 |
| Red Hat Enterprise Linux Server - Extended Life Cycle Support | 6 | x86_64 |
| Red Hat Enterprise Linux Server - Extended Life Cycle Support | 6 | i386 |
| Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension | 6 | x86_64 |
| Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension | 6 | i386 |
| Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension (for IBM z Systems) | 6 | s390x |
| Red Hat Enterprise Linux Server - Extended Life Cycle Support (for IBM z Systems) | 6 | s390x |
| Red Hat Enterprise Linux Server - AUS | 6.2 | x86_64 |
| Red Hat Enterprise Linux Desktop | 6 | x86_64 |
| Red Hat Enterprise Linux Desktop | 6 | i386 |
Updated Packages
- libssh2-devel-1.2.2-7.el6_2.3.ppc.rpm
- libssh2-debuginfo-1.2.2-7.el6_2.3.s390x.rpm
- libssh2-docs-1.2.2-7.el6_2.3.s390x.rpm
- libssh2-debuginfo-1.2.2-7.el6_2.3.ppc64.rpm
- libssh2-debuginfo-1.2.2-7.el6_2.3.ppc.rpm
- libssh2-debuginfo-1.2.2-7.el6_2.3.x86_64.rpm
- libssh2-1.2.2-7.el6_2.3.x86_64.rpm
- libssh2-devel-1.2.2-7.el6_2.3.s390x.rpm
- libssh2-1.2.2-7.el6_2.3.s390.rpm
- libssh2-debuginfo-1.2.2-7.el6_2.3.s390.rpm
- libssh2-1.2.2-7.el6_2.3.s390x.rpm
- libssh2-devel-1.2.2-7.el6_2.3.s390.rpm
- libssh2-docs-1.2.2-7.el6_2.3.ppc64.rpm
- libssh2-devel-1.2.2-7.el6_2.3.ppc64.rpm
- libssh2-1.2.2-7.el6_2.3.src.rpm
- libssh2-devel-1.2.2-7.el6_2.3.x86_64.rpm
- libssh2-devel-1.2.2-7.el6_2.3.i686.rpm
- libssh2-1.2.2-7.el6_2.3.i686.rpm
- libssh2-debuginfo-1.2.2-7.el6_2.3.i686.rpm
- libssh2-1.2.2-7.el6_2.3.ppc.rpm
- libssh2-1.2.2-7.el6_2.3.ppc64.rpm
- libssh2-docs-1.2.2-7.el6_2.3.x86_64.rpm
- libssh2-docs-1.2.2-7.el6_2.3.i686.rpm
Fixes
CVEs
(none)
References
(none)
Additional information
- The Red Hat security contact is This content is not included.secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/.
- Offline Security Data data is available for integration with other systems. See Offline Security Data API to get started.