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Test ID:1.3.6.1.4.1.25623.1.0.870613
Category:Red Hat Local Security Checks
Title:RedHat Update for perl RHSA-2011:0558-01
Summary:The remote host is missing an update for the 'perl'; package(s) announced via the referenced advisory.
Description:Summary:
The remote host is missing an update for the 'perl'
package(s) announced via the referenced advisory.

Vulnerability Insight:
Perl is a high-level programming language commonly used for system
administration utilities and web programming. The Perl CGI module provides
resources for preparing and processing Common Gateway Interface (CGI) based
HTTP requests and responses.

It was found that the Perl CGI module used a hard-coded value for the MIME
boundary string in multipart/x-mixed-replace content. A remote attacker
could possibly use this flaw to conduct an HTTP response splitting attack
via a specially-crafted HTTP request. (CVE-2010-2761)

A CRLF injection flaw was found in the way the Perl CGI module processed a
sequence of non-whitespace preceded by newline characters in the header. A
remote attacker could use this flaw to conduct an HTTP response splitting
attack via a specially-crafted sequence of characters provided to the CGI
module. (CVE-2010-4410)

It was found that certain Perl string manipulation functions (such as uc()
and lc()) failed to preserve the taint bit. A remote attacker could use
this flaw to bypass the Perl taint mode protection mechanism in scripts
that use the affected functions to process tainted input. (CVE-2011-1487)

These packages upgrade the CGI module to version 3.51. Refer to the CGI
module's Changes file, linked to in the References, for a full list of
changes.

This update also fixes the following bugs:

* When using the 'threads' module, an attempt to send a signal to a thread
that did not have a signal handler specified caused the perl interpreter to
terminate unexpectedly with a segmentation fault. With this update, the
'threads' module has been updated to upstream version 1.82, which fixes
this bug. As a result, sending a signal to a thread that does not have the
signal handler specified no longer causes perl to crash. (BZ#626330)

* Prior to this update, the perl packages did not require the Digest::SHA
module as a dependency. Consequent to this, when a user started the cpan
command line interface and attempted to download a distribution from CPAN,
they may have been presented with the following message:

CPAN: checksum security checks disabled because Digest::SHA not installed.
Please consider installing the Digest::SHA module.

This update corrects the spec file for the perl package to require the
perl-Digest-SHA package as a dependency, and cpan no longer displays the
above message. (BZ#640716)

* When using the 'threads' module, continual ...

Description truncated, please see the referenced URL(s) for more information.

Affected Software/OS:
perl on Red Hat Enterprise Linux Desktop (v. 6),
Red Hat Enterprise Linux Server (v. 6),
Red Hat Enterprise Linux Workstation (v. 6)

Solution:
Please Install the Updated Packages.

CVSS Score:
5.0

CVSS Vector:
AV:N/AC:L/Au:N/C:N/I:P/A:N

Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2010-2761
http://lists.fedoraproject.org/pipermail/package-announce/2011-January/053576.html
http://lists.fedoraproject.org/pipermail/package-announce/2011-January/053591.html
http://lists.fedoraproject.org/pipermail/package-announce/2011-February/053665.html
http://lists.fedoraproject.org/pipermail/package-announce/2011-February/053678.html
http://www.mandriva.com/security/advisories?name=MDVSA-2010:237
http://www.mandriva.com/security/advisories?name=MDVSA-2010:250
https://bugzilla.mozilla.org/show_bug.cgi?id=600464
http://openwall.com/lists/oss-security/2010/12/01/1
http://openwall.com/lists/oss-security/2010/12/01/2
http://openwall.com/lists/oss-security/2010/12/01/3
http://osvdb.org/69588
http://osvdb.org/69589
http://www.redhat.com/support/errata/RHSA-2011-1797.html
http://secunia.com/advisories/42877
http://secunia.com/advisories/43033
http://secunia.com/advisories/43068
http://secunia.com/advisories/43147
http://secunia.com/advisories/43165
SuSE Security Announcement: SUSE-SR:2011:001 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2011-01/msg00003.html
SuSE Security Announcement: SUSE-SR:2011:002 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2011-01/msg00006.html
SuSE Security Announcement: SUSE-SR:2011:005 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2011-04/msg00000.html
http://www.vupen.com/english/advisories/2011/0076
http://www.vupen.com/english/advisories/2011/0207
http://www.vupen.com/english/advisories/2011/0212
http://www.vupen.com/english/advisories/2011/0249
http://www.vupen.com/english/advisories/2011/0271
Common Vulnerability Exposure (CVE) ID: CVE-2010-4410
BugTraq ID: 44199
http://www.securityfocus.com/bid/44199
BugTraq ID: 45145
http://www.securityfocus.com/bid/45145
http://www.mandriva.com/security/advisories?name=MDVSA-2010:252
http://www.vupen.com/english/advisories/2010/3230
Common Vulnerability Exposure (CVE) ID: CVE-2011-1487
BugTraq ID: 47124
http://www.securityfocus.com/bid/47124
Debian Security Information: DSA-2265 (Google Search)
http://www.debian.org/security/2011/dsa-2265
http://lists.fedoraproject.org/pipermail/package-announce/2011-April/057891.html
http://lists.fedoraproject.org/pipermail/package-announce/2011-April/057971.html
http://www.mandriva.com/security/advisories?name=MDVSA-2011:091
http://openwall.com/lists/oss-security/2011/04/01/3
http://openwall.com/lists/oss-security/2011/04/04/35
http://secunia.com/advisories/43921
http://secunia.com/advisories/44168
SuSE Security Announcement: SUSE-SR:2011:009 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2011-05/msg00005.html
XForce ISS Database: perl-laundering-security-bypass(66528)
https://exchange.xforce.ibmcloud.com/vulnerabilities/66528
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