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Red Hat: RHSA-2011:0918-01 Moderate: Curl Credential Delegation Issue

red hat
Calendar Grey July 5, 2011
Dist Redhat Esm H88
Recent curl updates for Red Hat Enterprise Linux resolve a significant security concern related to credential delegation. Ensure your systems are upgraded promptly.
Updated curl packages that fix one security issue are now available for Red Hat Enterprise Linux 4, 5, and 6

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 https://access.redhat.com/kb/docs/DOC-11259

Summary

cURL provides the libcurl library and a command line tool for downloading files from servers using various protocols, including HTTP, FTP, and LDAP.
It was found that cURL always performed credential delegation when authenticating with GSSAPI. A rogue server could use this flaw to obtain the client's credentials and impersonate that client to other servers that are using GSSAPI. (CVE-2011-2192)
Users of curl should upgrade to these updated packages, which contain a backported patch to correct this issue. All running applications using libcurl must be restarted for the update to take effect.

Topics%20covered

Topics Covered

security advisory red hat moderate severity credential issue curl update

References

https://access.redhat.com/security/cve/CVE-2011-2192 https://access.redhat.com/security/updates/classification#moderate https://curl.se/docs/CVE-2011-2192.html

Package List

Red Hat Enterprise Linux AS version 4:
Source:
i386: curl-7.12.1-17.el4.i386.rpm curl-debuginfo-7.12.1-17.el4.i386.rpm curl-devel-7.12.1-17.el4.i386.rpm
ia64: curl-7.12.1-17.el4.i386.rpm curl-7.12.1-17.el4.ia64.rpm curl-debuginfo-7.12.1-17.el4.i386.rpm curl-debuginfo-7.12.1-17.el4.ia64.rpm curl-devel-7.12.1-17.el4.ia64.rpm
ppc: curl-7.12.1-17.el4.ppc.rpm curl-7.12.1-17.el4.ppc64.rpm curl-debuginfo-7.12.1-17.el4.ppc.rpm curl-debuginfo-7.12.1-17.el4.ppc64.rpm curl-devel-7.12.1-17.el4.ppc.rpm
s390: curl-7.12.1-17.el4.s390.rpm curl-debuginfo-7.12.1-17.el4.s390.rpm curl-devel-7.12.1-17.el4.s390.rpm
s390x: curl-7.12.1-17.el4.s390.rpm curl-7.12.1-17.el4.s390x.rpm curl-debuginfo-7.12.1-17.el4.s390.rpm curl-debuginfo-7.12.1-17.el4.s390x.rpm curl-devel-7.12.1-17.el4.s390x.rpm
x86_64: curl-7.12.1-17.el4.i386.rpm curl-7.12.1-17.el4.x86_64.rpm curl-debuginfo-7.12.1-17.el4.i386.rpm curl-debuginfo-7.12.1-17.el4.x86_64.rpm curl-devel-7.12.1-17.el4.x86_64.rpm
Red Hat Enterprise Linux Desktop version 4:
Source:
i386: curl-7.12.1-17.el4.i386.rpm curl-debuginfo-7.12.1-17.el4.i386.rpm curl-devel-7.12.1-17.el4.i386.rpm
x86_64: curl-7.12.1-17.el4.i386.rpm curl-7.12.1-17.el4.x86_64.rpm curl-debuginfo-7.12.1-17.el4.i386.rpm curl-debuginfo-7.12.1-17.el4.x86_64.rpm

Read the Full Advisory


Advisory ID: RHSA-2011:0918-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2011:0918.html
Issue date: 2011-07-05

Topic

Updated curl packages that fix one security issue are now available for RedHat Enterprise Linux 4, 5, and 6.The Red Hat Security Response Team has rated this update as having moderatesecurity impact. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available from the CVE link inthe References section.

Topics%20covered

Topics Covered

security advisory red hat moderate severity credential issue curl update

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 AS version 4 - i386, ia64, ppc, s390, s390x, x86_64

Red Hat Enterprise Linux Desktop (v. 5 client) - i386, x86_64

Red Hat Enterprise Linux Desktop (v. 6) - i386, x86_64

Red Hat Enterprise Linux Desktop Optional (v. 6) - i386, x86_64

Red Hat Enterprise Linux Desktop version 4 - i386, x86_64

Red Hat Enterprise Linux ES version 4 - i386, ia64, x86_64

Red Hat Enterprise Linux HPC Node (v. 6) - x86_64

Red Hat Enterprise Linux HPC Node Optional (v. 6) - x86_64

Red Hat Enterprise Linux Server (v. 6) - i386, ppc64, s390x, x86_64

Red Hat Enterprise Linux WS version 4 - i386, ia64, x86_64

Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64

Bugs Fixed

711454 - CVE-2011-2192 curl: Improper delegation of client credentials during GSS negotiation

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