10 High
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:C/I:C/A:C
0.975 High
EPSS
Percentile
100.0%
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.
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
RedHat | 6 | x86_64 | glibc-debuginfo | < 2.12-1.149.el6_6.5 | glibc-debuginfo-2.12-1.149.el6_6.5.x86_64.rpm |
RedHat | 7 | ppc | glibc-static | < 2.17-55.el7_0.5 | glibc-static-2.17-55.el7_0.5.ppc.rpm |
RedHat | 7 | s390 | glibc-devel | < 2.17-55.el7_0.5 | glibc-devel-2.17-55.el7_0.5.s390.rpm |
RedHat | 7 | s390x | glibc-utils | < 2.17-55.el7_0.5 | glibc-utils-2.17-55.el7_0.5.s390x.rpm |
RedHat | 6 | s390 | glibc-debuginfo-common | < 2.12-1.149.el6_6.5 | glibc-debuginfo-common-2.12-1.149.el6_6.5.s390.rpm |
RedHat | 7 | i686 | glibc-debuginfo-common | < 2.17-55.el7_0.5 | glibc-debuginfo-common-2.17-55.el7_0.5.i686.rpm |
RedHat | 7 | ppc64 | glibc-debuginfo | < 2.17-55.el7_0.5 | glibc-debuginfo-2.17-55.el7_0.5.ppc64.rpm |
RedHat | 7 | s390x | nscd | < 2.17-55.el7_0.5 | nscd-2.17-55.el7_0.5.s390x.rpm |
RedHat | 6 | s390x | glibc-utils | < 2.12-1.149.el6_6.5 | glibc-utils-2.12-1.149.el6_6.5.s390x.rpm |
RedHat | 6 | x86_64 | glibc-utils | < 2.12-1.149.el6_6.5 | glibc-utils-2.12-1.149.el6_6.5.x86_64.rpm |