Kod programskog paketa Ruby, poznatog kao i CRuby, otkrivena je sigurnosna ranjivost. Zlonamjerni korisnik može iskoristiti propust za izvođenje DoS napada pomoću posebno oblikovanog ulaznog niza.
Paket:
ruby 1.x
Operacijski sustavi:
Mandriva Linux 2010.1, Mandriva Linux 2011, Mandriva Linux Enterprise Server 5.0
Kritičnost:
6.8
Problem:
neodgovarajuća provjera ulaznih podataka
Iskorištavanje:
lokalno
Posljedica:
uskraćivanje usluga (DoS)
Rješenje:
programska zakrpa proizvođača
CVE:
CVE-2011-4815
Izvorni ID preporuke:
MDVSA-2012:024
Izvor:
Mandriva
Problem:
Propust je posljedica ne ograničavanja kolizija u izračunavanju hash vrijednosti.
Posljedica:
Napadač bi mogao iskoristiti propust za izazivanje DoS stanja putem posebno oblikovanih ulaza za programe koji sadržavaju hash tablicu.
Rješenje:
Svim se korisnicima savjetuje instalacija nadogradnje ranjivog paketa.
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
_______________________________________________________________________
Mandriva Linux Security Advisory MDVSA-2012:024
http://www.mandriva.com/security/
_______________________________________________________________________
Package : ruby
Date : February 28, 2012
Affected: 2010.1, 2011., Enterprise Server 5.0
_______________________________________________________________________
Problem Description:
A vulnerability has been found and corrected in ruby:
Ruby (aka CRuby) before 1.8.7-p357 computes hash values without
restricting the ability to trigger hash collisions predictably,
which allows context-dependent attackers to cause a denial of service
(CPU consumption) via crafted input to an application that maintains
a hash table (CVE-2011-4815).
The updated packages have been patched to correct this issue.
_______________________________________________________________________
References:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-4815
_______________________________________________________________________
Updated Packages:
Mandriva Linux 2010.1:
d211540ac03bde71c784b2fdd82f72ea
2010.1/i586/ruby-1.8.7.p249-4.2mdv2010.2.i586.rpm
a34667198e32474af1629dffc7b36d66
2010.1/i586/ruby-devel-1.8.7.p249-4.2mdv2010.2.i586.rpm
40ef4190846a3199cb69f3806d3d469d
2010.1/i586/ruby-doc-1.8.7.p249-4.2mdv2010.2.i586.rpm
d278462b2f37f58340acf6a34012b9ae
2010.1/i586/ruby-tk-1.8.7.p249-4.2mdv2010.2.i586.rpm
056076e1e82cc6f014c3120299a88b8a
2010.1/SRPMS/ruby-1.8.7.p249-4.2mdv2010.2.src.rpm
Mandriva Linux 2010.1/X86_64:
ff8b1d25b3b72fc882f73d30b3090058
2010.1/x86_64/ruby-1.8.7.p249-4.2mdv2010.2.x86_64.rpm
93123ae15e933e222729f58c30c39253
2010.1/x86_64/ruby-devel-1.8.7.p249-4.2mdv2010.2.x86_64.rpm
2b639d890904651018b6e516d422dfd7
2010.1/x86_64/ruby-doc-1.8.7.p249-4.2mdv2010.2.x86_64.rpm
4427874ba57e9a85bee42cb665c23e69
2010.1/x86_64/ruby-tk-1.8.7.p249-4.2mdv2010.2.x86_64.rpm
056076e1e82cc6f014c3120299a88b8a
2010.1/SRPMS/ruby-1.8.7.p249-4.2mdv2010.2.src.rpm
Mandriva Linux 2011:
a82a3be0216b68a6085d48e61f1f9848
2011/i586/ruby-1.8.7.p334-4.1-mdv2011.0.i586.rpm
ca47d01be7d3d07c576179dc4d808a05
2011/i586/ruby-devel-1.8.7.p334-4.1-mdv2011.0.i586.rpm
3e663d8d3df13880806ee9ecd67896b9
2011/i586/ruby-doc-1.8.7.p334-4.1-mdv2011.0.i586.rpm
779400961dc5a3b44cb7e6ea56aa9731
2011/i586/ruby-tk-1.8.7.p334-4.1-mdv2011.0.i586.rpm
710fdb48a26500548e89974da729e57e 2011/SRPMS/ruby-1.8.7.p334-4.1.src.rpm
Mandriva Linux 2011/X86_64:
e3a681a43058a536bf9df669e8d5b0e6
2011/x86_64/ruby-1.8.7.p334-4.1-mdv2011.0.x86_64.rpm
11d134855a82d2300f9672194362e7a2
2011/x86_64/ruby-devel-1.8.7.p334-4.1-mdv2011.0.x86_64.rpm
6aafa6781c6f72ef3ce1efa841d4e5f2
2011/x86_64/ruby-doc-1.8.7.p334-4.1-mdv2011.0.x86_64.rpm
02a7ca269fa62d4b350615536a4dcf1c
2011/x86_64/ruby-tk-1.8.7.p334-4.1-mdv2011.0.x86_64.rpm
710fdb48a26500548e89974da729e57e 2011/SRPMS/ruby-1.8.7.p334-4.1.src.rpm
Mandriva Enterprise Server 5:
a47208b885ec74f98d4a43a5f13385f5
mes5/i586/ruby-1.8.7-7p72.5mdvmes5.2.i586.rpm
03a05dd52c6546d933661086b701685e
mes5/i586/ruby-devel-1.8.7-7p72.5mdvmes5.2.i586.rpm
e02800af7193f3c78f56476487db465e
mes5/i586/ruby-doc-1.8.7-7p72.5mdvmes5.2.i586.rpm
06e4c7c64a97130e7fc6123ca3092996
mes5/i586/ruby-tk-1.8.7-7p72.5mdvmes5.2.i586.rpm
d48a783d0f35e9efca549dbab228c3b6
mes5/SRPMS/ruby-1.8.7-7p72.5mdvmes5.2.src.rpm
Mandriva Enterprise Server 5/X86_64:
2cdc9d75233f1330be0ea823506cbc88
mes5/x86_64/ruby-1.8.7-7p72.5mdvmes5.2.x86_64.rpm
e5278f579466f0a74ffd3a14ec3239e8
mes5/x86_64/ruby-devel-1.8.7-7p72.5mdvmes5.2.x86_64.rpm
f0769c7dd9fca081ae6bb9e8d4f0f205
mes5/x86_64/ruby-doc-1.8.7-7p72.5mdvmes5.2.x86_64.rpm
794b375ad6b2f3b1a16f4cf4bb6b42d9
mes5/x86_64/ruby-tk-1.8.7-7p72.5mdvmes5.2.x86_64.rpm
d48a783d0f35e9efca549dbab228c3b6
mes5/SRPMS/ruby-1.8.7-7p72.5mdvmes5.2.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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