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Mandriva Linux Security Advisory 2011-098

Mandriva Linux Security Advisory 2011-098
Posted May 23, 2011
Authored by Mandriva | Site mandriva.com

Mandriva Linux Security Advisory 2011-098 - Cross-site scripting vulnerability in the WEBrick HTTP server in Ruby allows remote attackers to inject arbitrary web script or HTML via a crafted URI that triggers a UTF-7 error page. The safe-level feature in Ruby allows context-dependent attackers to modify strings via the Exception#to_s method, as demonstrated by changing an intended pathname. The VpMemAlloc function in bigdecimal.c in the BigDecimal class in Ruby does not properly allocate memory, which allows context-dependent attackers to execute arbitrary code or cause a denial of service via vectors involving creation of a large BigDecimal value within a 64-bit process, related to an integer truncation issue. The updated packages have been patched to correct this issue.

tags | advisory, remote, web, denial of service, arbitrary, xss, ruby
systems | linux, mandriva
advisories | CVE-2010-0541, CVE-2011-1005, CVE-2011-0188
SHA-256 | c941433f0af830382d2f5cef03846e0594fa90093d37e8faa51dbc590703d07c

Mandriva Linux Security Advisory 2011-098

Change Mirror Download
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Hash: SHA1

_______________________________________________________________________

Mandriva Linux Security Advisory MDVSA-2011:098
http://www.mandriva.com/security/
_______________________________________________________________________

Package : ruby
Date : May 23, 2011
Affected: Corporate 4.0
_______________________________________________________________________

Problem Description:

Multiple vulnerabilities have been identified and fixed in ruby:

Cross-site scripting (XSS) vulnerability in the WEBrick HTTP server
in Ruby allows remote attackers to inject arbitrary web script or HTML
via a crafted URI that triggers a UTF-7 error page (CVE-2010-0541).

The safe-level feature in Ruby allows context-dependent attackers
to modify strings via the Exception#to_s method, as demonstrated by
changing an intended pathname (CVE-2011-1005).

The VpMemAlloc function in bigdecimal.c in the BigDecimal class in
Ruby does not properly allocate memory, which allows context-dependent
attackers to execute arbitrary code or cause a denial of service
(application crash) via vectors involving creation of a large
BigDecimal value within a 64-bit process, related to an integer
truncation issue. (CVE-2011-0188).

The updated packages have been patched to correct this issue.
_______________________________________________________________________

References:

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2010-0541
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-1005
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-0188
_______________________________________________________________________

Updated Packages:

Corporate 4.0:
dfeb0f9357da8745785c0982b0712ce9 corporate/4.0/i586/ruby-1.8.2-7.12.20060mlcs4.i586.rpm
8f5e2bac1144b743427b0ec86e9d0bdc corporate/4.0/i586/ruby-devel-1.8.2-7.12.20060mlcs4.i586.rpm
0fe11def9c0d08c8be547b673382ab13 corporate/4.0/i586/ruby-doc-1.8.2-7.12.20060mlcs4.i586.rpm
71ef95ff361bded75e12ee0a43d76801 corporate/4.0/i586/ruby-tk-1.8.2-7.12.20060mlcs4.i586.rpm
c47e659878782a2142d0aa895948cbdd corporate/4.0/SRPMS/ruby-1.8.2-7.12.20060mlcs4.src.rpm

Corporate 4.0/X86_64:
6ebbbe7111ed2f782a74e53d7852e9a7 corporate/4.0/x86_64/ruby-1.8.2-7.12.20060mlcs4.x86_64.rpm
9f41b5f45c53d4415b26a86e50abbdfc corporate/4.0/x86_64/ruby-devel-1.8.2-7.12.20060mlcs4.x86_64.rpm
da424c6a5b676ab74a5eb88a945817ac corporate/4.0/x86_64/ruby-doc-1.8.2-7.12.20060mlcs4.x86_64.rpm
05be0c747d5fe9e18846c71c94f544b2 corporate/4.0/x86_64/ruby-tk-1.8.2-7.12.20060mlcs4.x86_64.rpm
c47e659878782a2142d0aa895948cbdd corporate/4.0/SRPMS/ruby-1.8.2-7.12.20060mlcs4.src.rpm
_______________________________________________________________________

To upgrade automatically use MandrivaUpdate or urpmi. The verification
of md5 checksums and GPG signatures is performed automatically for you.

All packages are signed by Mandriva for security. You can obtain the
GPG public key of the Mandriva Security Team by executing:

gpg --recv-keys --keyserver pgp.mit.edu 0x22458A98

You can view other update advisories for Mandriva Linux at:

http://www.mandriva.com/security/advisories

If you want to report vulnerabilities, please contact

security_(at)_mandriva.com
_______________________________________________________________________

Type Bits/KeyID Date User ID
pub 1024D/22458A98 2000-07-10 Mandriva Security Team
<security*mandriva.com>
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