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=====================================================================
Red Hat Security Advisory
Synopsis: Moderate: curl security, bug fix and enhancement update
Advisory ID: RHSA-2010:0273-05
Product: Red Hat Enterprise Linux
Advisory URL: https://rhn.redhat.com/errata/RHSA-2010-0273.html
Issue date: 2010-03-30
CVE Names: CVE-2010-0734
=====================================================================
1. Summary:
Updated curl packages that fix one security issue, various bugs, and add
enhancements are now available for Red Hat Enterprise Linux 5.
The Red Hat Security Response Team has rated this update as having moderate
security impact. A Common Vulnerability Scoring System (CVSS) base score,
which gives a detailed severity rating, is available from the CVE link in
the References section.
2. Relevant releases/architectures:
RHEL Desktop Workstation (v. 5 client) - i386, x86_64
Red Hat Enterprise Linux (v. 5 server) - i386, ia64, ppc, s390x, x86_64
Red Hat Enterprise Linux Desktop (v. 5 client) - i386, x86_64
3. 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.
Wesley Miaw discovered that when deflate compression was used, libcurl
could call the registered write callback function with data exceeding the
documented limit. A malicious server could use this flaw to crash an
application using libcurl or, potentially, execute arbitrary code. Note:
This issue only affected applications using libcurl that rely on the
documented data size limit, and that copy the data to the insufficiently
sized buffer. (CVE-2010-0734)
This update also fixes the following bugs:
* when using curl to upload a file, if the connection was broken or reset
by the server during the transfer, curl immediately started using 100% CPU
and failed to acknowledge that the transfer had failed. With this update,
curl displays an appropriate error message and exits when an upload fails
mid-transfer due to a broken or reset connection. (BZ#479967)
* libcurl experienced a segmentation fault when attempting to reuse a
connection after performing GSS-negotiate authentication, which in turn
caused the curl program to crash. This update fixes this bug so that reused
connections are able to be successfully established even after
GSS-negotiate authentication has been performed. (BZ#517199)
As well, this update adds the following enhancements:
* curl now supports loading Certificate Revocation Lists (CRLs) from a
Privacy Enhanced Mail (PEM) file. When curl attempts to access sites that
have had their certificate revoked in a CRL, curl refuses access to those
sites. (BZ#532069)
* the curl(1) manual page has been updated to clarify that the "--socks4"
and "--socks5" options do not work with the IPv6, FTPS, or LDAP protocols.
(BZ#473128)
* the curl utility's program help, which is accessed by running "curl -h",
has been updated with descriptions for the "--ftp-account" and
"--ftp-alternative-to-user" options. (BZ#517084)
Users of curl should upgrade to these updated packages, which contain
backported patches to correct these issues and add these enhancements. All
running applications using libcurl must be restarted for the update to take
effect.
4. 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
http://kbase.redhat.com/faq/docs/DOC-11259
5. Bugs fixed (http://bugzilla.redhat.com/):
479967 - curl uses 100% of CPU if upload connection is broken
517084 - curl program options differ from option in manual page
517199 - curl, libcurl crash when reusing connection after negotiate-auth
563220 - CVE-2010-0734 curl: zlib-compression causes curl to pass more than CURL_MAX_WRITE_SIZE bytes to write callback
6. Package List:
Red Hat Enterprise Linux Desktop (v. 5 client):
Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/curl-7.15.5-9.el5.src.rpm
i386:
curl-7.15.5-9.el5.i386.rpm
curl-debuginfo-7.15.5-9.el5.i386.rpm
x86_64:
curl-7.15.5-9.el5.i386.rpm
curl-7.15.5-9.el5.x86_64.rpm
curl-debuginfo-7.15.5-9.el5.i386.rpm
curl-debuginfo-7.15.5-9.el5.x86_64.rpm
RHEL Desktop Workstation (v. 5 client):
Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/curl-7.15.5-9.el5.src.rpm
i386:
curl-debuginfo-7.15.5-9.el5.i386.rpm
curl-devel-7.15.5-9.el5.i386.rpm
x86_64:
curl-debuginfo-7.15.5-9.el5.i386.rpm
curl-debuginfo-7.15.5-9.el5.x86_64.rpm
curl-devel-7.15.5-9.el5.i386.rpm
curl-devel-7.15.5-9.el5.x86_64.rpm
Red Hat Enterprise Linux (v. 5 server):
Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/os/SRPMS/curl-7.15.5-9.el5.src.rpm
i386:
curl-7.15.5-9.el5.i386.rpm
curl-debuginfo-7.15.5-9.el5.i386.rpm
curl-devel-7.15.5-9.el5.i386.rpm
ia64:
curl-7.15.5-9.el5.ia64.rpm
curl-debuginfo-7.15.5-9.el5.ia64.rpm
curl-devel-7.15.5-9.el5.ia64.rpm
ppc:
curl-7.15.5-9.el5.ppc.rpm
curl-7.15.5-9.el5.ppc64.rpm
curl-debuginfo-7.15.5-9.el5.ppc.rpm
curl-debuginfo-7.15.5-9.el5.ppc64.rpm
curl-devel-7.15.5-9.el5.ppc.rpm
curl-devel-7.15.5-9.el5.ppc64.rpm
s390x:
curl-7.15.5-9.el5.s390.rpm
curl-7.15.5-9.el5.s390x.rpm
curl-debuginfo-7.15.5-9.el5.s390.rpm
curl-debuginfo-7.15.5-9.el5.s390x.rpm
curl-devel-7.15.5-9.el5.s390.rpm
curl-devel-7.15.5-9.el5.s390x.rpm
x86_64:
curl-7.15.5-9.el5.i386.rpm
curl-7.15.5-9.el5.x86_64.rpm
curl-debuginfo-7.15.5-9.el5.i386.rpm
curl-debuginfo-7.15.5-9.el5.x86_64.rpm
curl-devel-7.15.5-9.el5.i386.rpm
curl-devel-7.15.5-9.el5.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://www.redhat.com/security/team/key/#package
7. References:
https://www.redhat.com/security/data/cve/CVE-2010-0734.html
http://www.redhat.com/security/updates/classification/#moderate
8. Contact:
The Red Hat security contact is . More contact
details at https://www.redhat.com/security/team/contact/
Copyright 2010 Red Hat, Inc.
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"
RHSA-2010:0129-01 Moderate: cups security updateSusan Boyle thief to face court
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