Detections
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RHEL 6 / 7 : glibc (RHSA-2015:0092)
critical Nessus Plugin ID 81034
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Synopsis
The remote Red Hat host is missing a security update for glibc.Description
The remote Redhat Enterprise Linux 6 / 7 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2015:0092 advisory.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.
Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.
Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.
Solution
Update the RHEL glibc package based on the guidance in RHSA-2015:0092.See Also
http://www.nessus.org/u?8574a42e
https://access.redhat.com/errata/RHSA-2015:0092
https://access.redhat.com/security/updates/classification/#critical
Plugin Details
Severity: Critical
ID: 81034
File Name: redhat-RHSA-2015-0092.nasl
Version: 1.25
Type: local
Agent: unix
Family: Red Hat Local Security Checks
Published: 1/28/2015
Updated: 3/24/2025
Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Nessus
Risk Information
VPR
Risk Factor: High
Score: 8.9
Vendor
Vendor Severity: Critical
CVSS v2
Risk Factor: Critical
Base Score: 10
Temporal Score: 8.7
Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C
CVSS Score Source: CVE-2015-0235
CVSS v3
Risk Factor: Critical
Base Score: 9.8
Temporal Score: 9.4
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Temporal Vector: CVSS:3.0/E:H/RL:O/RC:C
Vulnerability Information
CPE: p-cpe:/a:redhat:enterprise_linux:glibc-headers, cpe:/o:redhat:enterprise_linux:7, cpe:/o:redhat:enterprise_linux:6, p-cpe:/a:redhat:enterprise_linux:glibc-utils, p-cpe:/a:redhat:enterprise_linux:glibc-common, p-cpe:/a:redhat:enterprise_linux:glibc-devel, p-cpe:/a:redhat:enterprise_linux:glibc-static, p-cpe:/a:redhat:enterprise_linux:glibc, p-cpe:/a:redhat:enterprise_linux:nscd
Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu
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