Executive Summary

Summary
Title glibc security update
Informations
Name RHSA-2015:2172 First vendor Publication 2015-11-19
Vendor RedHat Last vendor Modification 2015-11-19
Severity (Vendor) Important Revision 01

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:L/AC:L/Au:N/C:C/I:C/A:C)
Cvss Base Score 7.2 Attack Range Local
Cvss Impact Score 10 Attack Complexity Low
Cvss Expoit Score 3.9 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

Problem Description:

Updated glibc packages that fix one security issue are now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having Important 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.

2. Relevant releases/architectures:

Red Hat Enterprise Linux Client (v. 7) - x86_64 Red Hat Enterprise Linux Client Optional (v. 7) - x86_64 Red Hat Enterprise Linux ComputeNode (v. 7) - x86_64 Red Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64 Red Hat Enterprise Linux Server (v. 7) - aarch64, ppc64, ppc64le, s390x, x86_64 Red Hat Enterprise Linux Server Optional (v. 7) - aarch64, ppc64, ppc64le, s390x, x86_64 Red Hat Enterprise Linux Workstation (v. 7) - x86_64 Red Hat Enterprise Linux Workstation Optional (v. 7) - x86_64

3. 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.

It was discovered that the nss_files backend for the Name Service Switch in glibc would return incorrect data to applications or corrupt the heap (depending on adjacent heap contents) in certain cases. A local attacker could potentially use this flaw to escalate their privileges. (CVE-2015-5277)

This issue was discovered by Sumit Bose and Lukáš Slebodník of Red Hat.

All glibc users are advised to upgrade to these updated packages, which contain a backported patch to correct this issue.

4. Solution:

Before applying this update, make sure all previously released errata relevant to your system have been applied.

For details on how to apply this update, refer to:

https://access.redhat.com/articles/11258

5. Bugs fixed (https://bugzilla.redhat.com/):

1262914 - CVE-2015-5277 glibc: data corruption while reading the NSS files database

Original Source

Url : https://rhn.redhat.com/errata/RHSA-2015-2172.html

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-119 Failure to Constrain Operations within the Bounds of a Memory Buffer

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 114
Os 3
Os 1
Os 1
Os 1
Os 1

Nessus® Vulnerability Scanner

Date Description
2017-02-21 Name : The remote Gentoo host is missing one or more security-related patches.
File : gentoo_GLSA-201702-11.nasl - Type : ACT_GATHER_INFO
2016-05-27 Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-2985-2.nasl - Type : ACT_GATHER_INFO
2016-05-26 Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-2985-1.nasl - Type : ACT_GATHER_INFO
2016-02-04 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2015-2589.nasl - Type : ACT_GATHER_INFO
2015-12-29 Name : The remote Scientific Linux host is missing one or more security updates.
File : sl_20151119_glibc_on_SL7_x_important.nasl - Type : ACT_GATHER_INFO
2015-12-15 Name : The remote Amazon Linux AMI host is missing a security update.
File : ala_ALAS-2015-617.nasl - Type : ACT_GATHER_INFO
2015-12-02 Name : The remote CentOS host is missing one or more security updates.
File : centos_RHSA-2015-2172.nasl - Type : ACT_GATHER_INFO
2015-11-30 Name : The remote Oracle Linux host is missing one or more security updates.
File : oraclelinux_ELSA-2015-2172.nasl - Type : ACT_GATHER_INFO
2015-11-20 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2015-2172.nasl - Type : ACT_GATHER_INFO

Alert History

If you want to see full details history, please login or register.
0
1
2
3
4
5
Date Informations
2015-12-18 21:28:52
  • Multiple Updates
2015-12-18 00:27:48
  • Multiple Updates
2015-12-05 13:28:31
  • Multiple Updates
2015-12-03 13:26:50
  • Multiple Updates
2015-11-21 13:26:12
  • Multiple Updates
2015-11-20 05:23:24
  • First insertion