Detections
Analytics
CentOS 6 / 7 : glibc (CESA-2015:0092) (GHOST)
high Nessus Plugin ID 81026
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Synopsis
The remote CentOS host is missing one or more security updates.Description
Updated glibc packages that fix one security issue are now available for Red Hat Enterprise Linux 6 and 7.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.
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)
Red Hat would like to thank Qualys for reporting this issue.
All glibc users are advised to upgrade to these updated packages, which contain a backported patch to correct this issue.
Solution
Update the affected glibc packages.See Also
Plugin Details
Severity: High
ID: 81026
File Name: centos_RHSA-2015-0092.nasl
Version: 1.22
Type: local
Agent: unix
Family: CentOS Local Security Checks
Published: 1/28/2015
Updated: 1/4/2021
Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus
Risk Information
VPR
Risk Factor: High
Score: 8.9
CVSS v2
Risk Factor: High
Base Score: 7.6
Temporal Score: 6.6
Vector: CVSS2#AV:N/AC:H/Au:N/C:C/I:C/A:C
CVSS Score Source: CVE-2015-0235
Vulnerability Information
CPE: p-cpe:/a:centos:centos:glibc, cpe:/o:centos:centos:7, cpe:/o:centos:centos:6, p-cpe:/a:centos:centos:glibc-headers, p-cpe:/a:centos:centos:glibc-static, p-cpe:/a:centos:centos:glibc-devel, p-cpe:/a:centos:centos:glibc-utils, p-cpe:/a:centos:centos:nscd, p-cpe:/a:centos:centos:glibc-common
Required KB Items: Host/local_checks_enabled, Host/CentOS/release, Host/CentOS/rpm-list
Exploit Available: true
Exploit Ease: Exploits are available
Patch Publication Date: 1/27/2015
Vulnerability Publication Date: 1/28/2015
Exploitable With
Core Impact
Metasploit (Exim GHOST (glibc gethostbyname) Buffer Overflow)
Reference Information
CVE: CVE-2015-0235
BID: 72325