- Issued:
- 2009-04-29
- Updated:
- 2009-09-02
RHBA-2009:0453 - tcp_wrappers bug fix update
Synopsis
tcp_wrappers bug fix update
Type/Severity
Bug Fix Advisory
Topic
Updated tcp_wrappers packages that fix a bug are now available.
Description
The tcp_wrappers package provides small daemon programs which can monitor and filter incoming requests for systat, finger, FTP, telnet, rlogin, rsh, exec, tftp, talk and other network services. It also contains the libwrap library that adds the same filtering capabilities to programs linked against it, like sshd and more.
These updated tcp_wrappers packages fix the following bug:
- when tcp_wrappers performed an ident query which failed, applications which used tcp_wrappers were then unable to receive SIGALRM (alarm) signals. This has been fixed by correctly restoring signal masks in this update, so that applications using tcp_wrappers are now able to receive and handle SIGALRM signals following a failed ident query.
All users of tcp_wrappers are advised to upgrade to these updated packages, which resolve this issue.
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 This content is not included.http://kbase.redhat.com/faq/docs/DOC-11259
Affected Products
| Product | Version | Arch |
|---|---|---|
| Red Hat Enterprise Linux for Power, big endian | 5 | ppc |
| Red Hat Enterprise Linux for IBM z Systems | 5 | s390x |
| Red Hat Enterprise Linux Workstation | 5 | x86_64 |
| Red Hat Enterprise Linux Workstation | 5 | i386 |
| Red Hat Enterprise Linux Server | 5 | x86_64 |
| Red Hat Enterprise Linux Server | 5 | ia64 |
| Red Hat Enterprise Linux Server | 5 | i386 |
| Red Hat Enterprise Linux Server from RHUI | 5 | x86_64 |
| Red Hat Enterprise Linux Server from RHUI | 5 | i386 |
| Red Hat Enterprise Linux Desktop | 5 | x86_64 |
| Red Hat Enterprise Linux Desktop | 5 | i386 |
Updated Packages
- tcp_wrappers-7.6-40.7.el5.ia64.rpm
- tcp_wrappers-7.6-40.7.el5.ppc64.rpm
- tcp_wrappers-7.6-40.7.el5.ppc.rpm
- tcp_wrappers-7.6-40.7.el5.src.rpm
- tcp_wrappers-7.6-40.7.el5.x86_64.rpm
- tcp_wrappers-7.6-40.7.el5.s390x.rpm
- tcp_wrappers-7.6-40.7.el5.s390.rpm
- tcp_wrappers-7.6-40.7.el5.i386.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.