RedHat (CentOS 5.x) Vulnerability CVE-2015-0235

Product Bulletin: SSI-PSB-2015-02
Montréal, 28 January 2015
For immediate release of information to all resellers and integrators
RedHat (CentOS 5.x) Vulnerability CVE-2015-0235
Red Hat Product Security has rated this update as having Critical security impact. A Common Vulnerability
Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the
References section.
https://rhn.redhat.com/errata/RHSA-2015-0090.html
Description:
The glibc packages provide the standard C libraries (libc), POSIX thread libraries (libpthread), standard math
libraries (libm), and the Name Server Caching Daemon (nscd) used by multiple programs on the
system. Without these libraries, the Linux system cannot function correctly.
A heap-based buffer overflow was found in glibc's __nss_hostname_digits_dots() function, which is used by the
gethostbyname() and gethostbyname2() glibc function calls. A remote attacker able to make an application call
either of these functions could use this flaw to execute arbitrary code with the permissions of the user running
the application. (CVE-2015-0235)
Immediate Recommendations:
Updated glibc packages that fix one security issue are now available for ScopServ Distributions built on
CentOS 5.
In order to protect your server and at the earliest convenience:
From the Linux shell execute (without quotations):
‘scopserv_yum update glibc* -y’
Ensure all updates have completed and then execute (without quotations)
‘reboot’
The minimum packages requirements are:
glibc-devel-2.5-123
glibc-2.5-123
glibc-headers-2.5-123
glibc-2.5-123
glibc-common-2.5-123
nscd-2.5-123
WWW.SCOPSERV.COM
Product Bulletin: SSI-PSB-2015-02
Montréal, le 28 Janvier 2015
Pour diffusion immédiate de l'information à tous les revendeurs et intégrateurs
RedHat (CentOS 5.x) Vulnérabilité CVE-2015-0235
Le département de sécurité de Red Hat a classé cette mise à jour comme ayant un impact de sécurité critique.
Un indice de gravité détaillé établi par le ‘Common Vulnerability Scoring System (CVSS)’, est disponible à
partir du lien suivant.
https://rhn.redhat.com/errata/RHSA-2015-0090.html
Description :
Dans le but de ne pas changer l’essence même du message, nous ne l’avons pas traduit en Français. Voici donc
le texte intégral en Anglais.
The glibc packages provide the standard C libraries (libc), POSIX thread libraries (libpthread), standard math
libraries (libm), and the Name Server Caching Daemon (nscd) used by multiple programs on the
system. Without these libraries, the Linux system cannot function correctly.
A heap-based buffer overflow was found in glibc's __nss_hostname_digits_dots() function, which is used by the
gethostbyname() and gethostbyname2() glibc function calls. A remote attacker able to make an application call
either of these functions could use this flaw to execute arbitrary code with the permissions of the user running
the application. (CVE-2015-0235)
Recommendation immédiate :
Des composantes mises à jour pour glibc corrigeant la vulnérabilité sont maintenant disponibles pour les
distributions de ScopTEL basées sur CentOS 5.x
Afin de protéger votre serveur et le plus tôt possible:
A partir du shell Linux exécuter (sans les guillemets):
'Scopserv_yum mise à jour glibc * -y'
Se assurer que toutes les mises à jour ont rempli et exécutent ensuite (sans les guillemets)
'Reboot'
Les exigences minimales en matière de composantes sont:
glibc-devel-2,5-123
glibc-2,5-123
glibc-headers-2,5-123
glibc-2,5-123
glibc-commune-2,5-123
nscd-2,5-123
WWW.SCOPSERV.COM