Overly broad permissions can turn one compromised account into a much larger security problem. Learn how to reduce unnecessary access, review privileges, and apply least privilege across modern Linux systems. Review Linux Privileges×
For details on how to apply this update, which includes the changes
described in this advisory, refer to:
https://access.redhat.com/articles/11258
For the update to take effect, all services linked to the glibc library
must be restarted, or the system rebooted.
The glibc packages provide the standard C libraries (libc), POSIX thread
libraries (libpthread), standard math libraries (libm), and the name
service cache daemon (nscd) used by multiple programs on the system.
Without these libraries, the Linux system cannot function correctly.
Security Fix(es):
* A stack overflow vulnerability was found in nan* functions that could
cause applications, which process long strings with the nan function, to
crash or, potentially, execute arbitrary code. (CVE-2014-9761)
* It was found that out-of-range time values passed to the strftime()
function could result in an out-of-bounds memory access. This could lead to
application crash or, potentially, information disclosure. (CVE-2015-8776)
* An integer overflow vulnerability was found in hcreate() and hcreate_r()
functions which could result in an out-of-bounds memory access. This could
lead to application crash or, potentially, arbitrary code execution.
(CVE-2015-8778)
* A stack based buffer overflow vulnerability was found in the catopen()
function. An excessively long string passed to the function could cause it
to crash or, potentially, execute arbitrary code. (CVE-2015-8779)
Additional Changes:
For detailed information on changes in this release, see the Red Hat
Enterprise Linux 6.9 Release Notes and Red Hat Enterprise Linux 6.9
Technical Notes linked from the References section.
https://access.redhat.com/security/cve/CVE-2014-9761 https://access.redhat.com/security/cve/CVE-2015-8776 https://access.redhat.com/security/cve/CVE-2015-8778 https://access.redhat.com/security/cve/CVE-2015-8779 https://access.redhat.com/security/updates/classification/#moderate
Red Hat Enterprise Linux Desktop (v. 6):
Source:
glibc-2.12-1.209.el6.src.rpm
i386:
glibc-2.12-1.209.el6.i686.rpm
glibc-common-2.12-1.209.el6.i686.rpm
glibc-debuginfo-2.12-1.209.el6.i686.rpm
glibc-debuginfo-common-2.12-1.209.el6.i686.rpm
glibc-devel-2.12-1.209.el6.i686.rpm
glibc-headers-2.12-1.209.el6.i686.rpm
glibc-utils-2.12-1.209.el6.i686.rpm
nscd-2.12-1.209.el6.i686.rpm
x86_64:
glibc-2.12-1.209.el6.i686.rpm
glibc-2.12-1.209.el6.x86_64.rpm
glibc-common-2.12-1.209.el6.x86_64.rpm
glibc-debuginfo-2.12-1.209.el6.i686.rpm
glibc-debuginfo-2.12-1.209.el6.x86_64.rpm
glibc-debuginfo-common-2.12-1.209.el6.i686.rpm
glibc-debuginfo-common-2.12-1.209.el6.x86_64.rpm
glibc-devel-2.12-1.209.el6.i686.rpm
glibc-devel-2.12-1.209.el6.x86_64.rpm
glibc-headers-2.12-1.209.el6.x86_64.rpm
glibc-utils-2.12-1.209.el6.x86_64.rpm
nscd-2.12-1.209.el6.x86_64.rpm
Red Hat Enterprise Linux Desktop Optional (v. 6):
i386:
glibc-debuginfo-2.12-1.209.el6.i686.rpm
glibc-debuginfo-common-2.12-1.209.el6.i686.rpm
glibc-static-2.12-1.209.el6.i686.rpm
x86_64:
glibc-debuginfo-2.12-1.209.el6.i686.rpm
glibc-debuginfo-2.12-1.209.el6.x86_64.rpm
glibc-debuginfo-common-2.12-1.209.el6.i686.rpm
glibc-debuginfo-common-2.12-1.209.el6.x86_64.rpm
glibc-static-2.12-1.209.el6.i686.rpm
glibc-static-2.12-1.209.el6.x86_64.rpm
Read the Full Advisory
An update for glibc is now available for Red Hat Enterprise Linux 6.Red Hat Product Security has rated this update as having a security impactof Moderate. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available for each vulnerability fromthe CVE link(s) in the References section.
Red Hat Enterprise Linux Desktop (v. 6) - i386, x86_64
Red Hat Enterprise Linux Desktop Optional (v. 6) - i386, x86_64
Red Hat Enterprise Linux HPC Node (v. 6) - x86_64
Red Hat Enterprise Linux HPC Node Optional (v. 6) - x86_64
Red Hat Enterprise Linux Server (v. 6) - i386, ppc64, s390x, x86_64
Red Hat Enterprise Linux Server Optional (v. 6) - i386, ppc64, s390x, x86_64
Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64
Red Hat Enterprise Linux Workstation Optional (v. 6) - i386, x86_64
1012343 - Thread issue in glibc can cause the application to not get any identity information
1101858 - glibc: Add el_GR@euro, ur_IN, and wal_ET locales
1223095 - access to uninitialized memory in getaddrinfo if nscd is running
1270950 - getaddrinfo() takes long time when lots of IP addresses are configured
1300299 - CVE-2015-8776 glibc: Segmentation fault caused by passing out-of-range data to strftime()
1300303 - CVE-2015-8778 glibc: Integer overflow in hcreate and hcreate_r
1300310 - CVE-2014-9761 glibc: Unbounded stack allocation in nan* functions
1300312 - CVE-2015-8779 glibc: Unbounded stack allocation in catopen function
1338673 - glibc: GCC 6 enablement for struct sockaddr_storage [el6]
1373646 - tzdata-update uses default umask
1416496 - getaddrinfo() call returns wrong IPv6 address if nscd is used
Get the latest Linux and open source security news straight to your inbox.