Synopsis
Moderate: curl security update
Type/Severity
Security Advisory: Moderate
Topic
Updated curl packages that fix a security issue are now available for Red
Hat Enterprise Linux 2.1, 3, 4, and 5.
This update has been rated as having moderate security impact by the Red
Hat Security Response Team.
Description
cURL is a tool for getting files from FTP, HTTP, Gopher, Telnet, and Dict
servers, using any of the supported protocols. cURL is designed to work
without user interaction or any kind of interactivity.
David Kierznowski discovered a flaw in libcurl where it would not
differentiate between different target URLs when handling automatic
redirects. This caused libcurl to follow any new URL that it understood,
including the "file://" URL type. This could allow a remote server to force
a local libcurl-using application to read a local file instead of the
remote one, possibly exposing local files that were not meant to be
exposed. (CVE-2009-0037)
Note: Applications using libcurl that are expected to follow redirects to
"file://" protocol must now explicitly call curl_easy_setopt(3) and set the
newly introduced CURLOPT_REDIR_PROTOCOLS option as required.
cURL users should upgrade to these updated packages, which contain
backported patches to correct these issues. All running applications using
libcurl must be restarted for the 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
http://kbase.redhat.com/faq/docs/DOC-11259
Affected Products
-
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 4 x86_64
-
Red Hat Enterprise Linux Server 4 ia64
-
Red Hat Enterprise Linux Server 4 i386
-
Red Hat Enterprise Linux Server 3 x86_64
-
Red Hat Enterprise Linux Server 3 ia64
-
Red Hat Enterprise Linux Server 3 i386
-
Red Hat Enterprise Linux Server 2 ia64
-
Red Hat Enterprise Linux Server 2 i386
-
Red Hat Enterprise Linux Server - Extended Update Support 5.3 x86_64
-
Red Hat Enterprise Linux Server - Extended Update Support 5.3 ia64
-
Red Hat Enterprise Linux Server - Extended Update Support 5.3 i386
-
Red Hat Enterprise Linux Server - Extended Update Support 4.7 x86_64
-
Red Hat Enterprise Linux Server - Extended Update Support 4.7 ia64
-
Red Hat Enterprise Linux Server - Extended Update Support 4.7 i386
-
Red Hat Enterprise Linux Server - AUS 5.3 x86_64
-
Red Hat Enterprise Linux Server - AUS 5.3 ia64
-
Red Hat Enterprise Linux Server - AUS 5.3 i386
-
Red Hat Enterprise Linux Workstation 5 x86_64
-
Red Hat Enterprise Linux Workstation 5 i386
-
Red Hat Enterprise Linux Workstation 4 x86_64
-
Red Hat Enterprise Linux Workstation 4 ia64
-
Red Hat Enterprise Linux Workstation 4 i386
-
Red Hat Enterprise Linux Workstation 3 x86_64
-
Red Hat Enterprise Linux Workstation 3 ia64
-
Red Hat Enterprise Linux Workstation 3 i386
-
Red Hat Enterprise Linux Workstation 2 ia64
-
Red Hat Enterprise Linux Workstation 2 i386
-
Red Hat Enterprise Linux Desktop 5 x86_64
-
Red Hat Enterprise Linux Desktop 5 i386
-
Red Hat Enterprise Linux Desktop 4 x86_64
-
Red Hat Enterprise Linux Desktop 4 i386
-
Red Hat Enterprise Linux Desktop 3 x86_64
-
Red Hat Enterprise Linux Desktop 3 i386
-
Red Hat Enterprise Linux for IBM z Systems 5 s390x
-
Red Hat Enterprise Linux for IBM z Systems 4 s390x
-
Red Hat Enterprise Linux for IBM z Systems 4 s390
-
Red Hat Enterprise Linux for IBM z Systems 3 s390x
-
Red Hat Enterprise Linux for IBM z Systems 3 s390
-
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 5.3 s390x
-
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 4.7 s390x
-
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 4.7 s390
-
Red Hat Enterprise Linux for Power, big endian 5 ppc
-
Red Hat Enterprise Linux for Power, big endian 4 ppc
-
Red Hat Enterprise Linux for Power, big endian 3 ppc
-
Red Hat Enterprise Linux for Power, big endian - Extended Update Support 5.3 ppc
-
Red Hat Enterprise Linux for Power, big endian - Extended Update Support 4.7 ppc
-
Red Hat Enterprise Linux Server from RHUI 5 x86_64
-
Red Hat Enterprise Linux Server from RHUI 5 i386
Fixes
- BZ - 485271 - CVE-2009-0037 curl: local file access via unsafe redirects
CVEs
References
Vulmon