- Issued:
- 2016-02-23
- Updated:
- 2016-02-23
RHBA-2016:0294 - Bug Fix Advisory
Synopsis
rhel-guest-image update
Type/Severity
Bug Fix Advisory
Red Hat Insights patch analysis
Identify and remediate systems affected by this advisory.
Topic
An updated rhel-guest-image package that includes glibc packages that are
not vulnerable to CVE-2015-7547,
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.
A stack-based buffer overflow was found in the way the libresolv library
performed dual A/AAAA DNS queries. A remote attacker could create a
specially crafted DNS response which could cause libresolv to crash or,
potentially, execute code with the permissions of the user running the
library. Note: this issue is only exposed when libresolv is called from the
nss_dns NSS service module. (CVE-2015-7547)
This issue was discovered by the Google Security Team and Red Hat.
Red Hat has released updated glibc packages to address the CVE-2015-7547). These updated packages are available for existing systems built with the rhel-guest-image package via "yum update glibc".
In addition, to ensure minimized exposure to this vulnerability and to
reduce the risk of deploying new systems with the vulnerable glibc packages,
Red Hat is releasing this updated rhel-guest-image package, which includes
glibc packages that are not vulnerable to the CVE-2015-7547.
Users of rhel-guest-image are advised to upgrade to this updated package,
which includes the updated glibc packages.
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:
Affected Products
- Red Hat Enterprise Linux Server 6 x86_64
- Red Hat Enterprise Linux Server from RHUI 6 x86_64
Fixes
(none)CVEs
(none)
Red Hat Enterprise Linux Server 6
SRPM | |
---|---|
rhel-guest-image-6.7-20160219.0.el6_7.src.rpm | SHA-256: badde4b1f62b3c03b221acc842de802c883e4d8807df45cdd751520f6c943888 |
x86_64 | |
rhel-guest-image-6-6.7-20160219.0.el6_7.noarch.rpm | SHA-256: 8e996f4260d22877f970bf86a125049b9b69b4b3076e66e1ae87047d3e78a1a9 |
Red Hat Enterprise Linux Server from RHUI 6
SRPM | |
---|---|
rhel-guest-image-6.7-20160219.0.el6_7.src.rpm | SHA-256: badde4b1f62b3c03b221acc842de802c883e4d8807df45cdd751520f6c943888 |
x86_64 | |
rhel-guest-image-6-6.7-20160219.0.el6_7.noarch.rpm | SHA-256: 8e996f4260d22877f970bf86a125049b9b69b4b3076e66e1ae87047d3e78a1a9 |
The Red Hat security contact is secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/.