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Red Hat Enterprise Linux: RHSA-2011:1245-01 Important Httpd DoS Issue

red hat
Calendar Grey August 31, 2011
Dist Redhat Esm H88
Critical apache security patch released for RHEL to resolve buffer overflow vulnerability. Update immediately.
Updated httpd 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

The Apache HTTP Server is a popular web server.
A flaw was found in the way the Apache HTTP Server handled Range HTTP headers. A remote attacker could use this flaw to cause httpd to use an excessive amount of memory and CPU time via HTTP requests with a specially-crafted Range header. (CVE-2011-3192)
All httpd users should upgrade to these updated packages, which contain a backported patch to correct this issue. After installing the updated packages, the httpd daemon must be restarted for the update to take effect.

Topics%20covered

Topics Covered

security advisory denial of service red hat httpd important memory issue red hat enterprise linux

References

https://access.redhat.com/security/cve/CVE-2011-3192 https://access.redhat.com/security/updates/classification/#important

Package List

Red Hat Enterprise Linux AS version 4:
Source:
i386: httpd-2.0.52-48.ent.i386.rpm httpd-debuginfo-2.0.52-48.ent.i386.rpm httpd-devel-2.0.52-48.ent.i386.rpm httpd-manual-2.0.52-48.ent.i386.rpm httpd-suexec-2.0.52-48.ent.i386.rpm mod_ssl-2.0.52-48.ent.i386.rpm
ia64: httpd-2.0.52-48.ent.ia64.rpm httpd-debuginfo-2.0.52-48.ent.ia64.rpm httpd-devel-2.0.52-48.ent.ia64.rpm httpd-manual-2.0.52-48.ent.ia64.rpm httpd-suexec-2.0.52-48.ent.ia64.rpm mod_ssl-2.0.52-48.ent.ia64.rpm
ppc: httpd-2.0.52-48.ent.ppc.rpm httpd-debuginfo-2.0.52-48.ent.ppc.rpm httpd-devel-2.0.52-48.ent.ppc.rpm httpd-manual-2.0.52-48.ent.ppc.rpm httpd-suexec-2.0.52-48.ent.ppc.rpm mod_ssl-2.0.52-48.ent.ppc.rpm
s390: httpd-2.0.52-48.ent.s390.rpm httpd-debuginfo-2.0.52-48.ent.s390.rpm httpd-devel-2.0.52-48.ent.s390.rpm httpd-manual-2.0.52-48.ent.s390.rpm httpd-suexec-2.0.52-48.ent.s390.rpm mod_ssl-2.0.52-48.ent.s390.rpm
s390x: httpd-2.0.52-48.ent.s390x.rpm httpd-debuginfo-2.0.52-48.ent.s390x.rpm httpd-devel-2.0.52-48.ent.s390x.rpm httpd-manual-2.0.52-48.ent.s390x.rpm httpd-suexec-2.0.52-48.ent.s390x.rpm mod_ssl-2.0.52-48.ent.s390x.rpm
x86_64: httpd-2.0.52-48.ent.x86_64.rpm httpd-debuginfo-2.0.52-48.ent.x86_64.rpm httpd-devel-2.0.52-48.ent.x86_64.rpm httpd-manual-2.0.52-48.ent.x86_64.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2011:1245-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2011:1245.html
Issue date: 2011-08-31

Topic

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

Topics%20covered

Topics Covered

security advisory denial of service red hat httpd important memory issue red hat enterprise linux

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, noarch, 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) - noarch, x86_64

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

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

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

Bugs Fixed

732928 - CVE-2011-3192 httpd: multiple ranges DoS

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