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Red Hat OpenStack 6.0: RHSA-2015:1675-01 Low: Libunwind Security Fix

red hat
Calendar Grey August 24, 2015
Dist Redhat Esm H88
Enhanced libunwind packages address a vulnerability in Red Hat OpenStack Platform 6.0, carrying minimal security implications alongside a published advisory.
Updated libunwind packages that fix a security flaw are now available for Red Hat Enterprise Linux OpenStack Platform 6.0

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

Summary

Libunwind provides a C ABI to determine the call-chain of a program.
An off by one array indexing error was found in libunwind. It is unlikely that any exploitable attack vector exists in current builds or supported usage. (CVE-2015-3239)
This issue was discovered by Paolo Bonzini of Red Hat.
All users of libunwind are advised to upgrade to these updated packages, which correct this issue.

Topics%20covered

Topics Covered

security advisory security update low severity Red Hat OpenStack libunwind

References

https://access.redhat.com/security/cve/CVE-2015-3239 https://access.redhat.com/security/updates/classification/#low

Package List

Red Hat Enterprise Linux OpenStack Platform 6.0 for RHEL 7:
Source: libunwind-1.1-4.1.el7ost.src.rpm
x86_64: libunwind-1.1-4.1.el7ost.x86_64.rpm libunwind-debuginfo-1.1-4.1.el7ost.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/


Severity
low
Lowest
Low
Medium
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Critical

Advisory ID: RHSA-2015:1675-01
Product: Red Hat Enterprise Linux OpenStack Platform
Advisory URL: https://access.redhat.com/errata/RHSA-2015:1675.html
Issue date: 2015-08-24

Topic

Updated libunwind packages that fix a security flaw are now available forRed Hat Enterprise Linux OpenStack Platform 6.0.Red Hat Product Security has rated this update as having Low securityimpact. Common Vulnerability Scoring System (CVSS) base scores, which givedetailed severity ratings, are available for each vulnerability from theCVE links in the References section.

Topics%20covered

Topics Covered

security advisory security update low severity Red Hat OpenStack libunwind

Relevant Releases Architectures

Red Hat Enterprise Linux OpenStack Platform 6.0 for RHEL 7 - x86_64

Bugs Fixed

1232265 - CVE-2015-3239 libunwind: off-by-one in dwarf_to_unw_regnum()

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