Synopsis
Important: memcached security update
Type/Severity
Security Advisory: Important
Topic
An update for memcached is now available for Red Hat Enterprise Linux 7.
Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Description
memcached is a high-performance, distributed memory object caching system, generic in nature, but intended for use in speeding up dynamic web applications by alleviating database load.
Security Fix(es):
- Two integer overflow flaws, leading to heap-based buffer overflows, were found in the memcached binary protocol. An attacker could create a specially crafted message that would cause the memcached server to crash or, potentially, execute arbitrary code. (CVE-2016-8704, CVE-2016-8705)
- An integer overflow flaw, leading to a heap-based buffer overflow, was found in memcached's parsing of SASL authentication messages. An attacker could create a specially crafted message that would cause the memcached server to crash or, potentially, execute arbitrary code. (CVE-2016-8706)
Solution
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
Affected Products
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Red Hat Enterprise Linux Server 7 x86_64
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Red Hat Enterprise Linux Server - Extended Update Support 7.6 x86_64
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Red Hat Enterprise Linux Server - Extended Update Support 7.5 x86_64
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Red Hat Enterprise Linux Server - Extended Update Support 7.4 x86_64
-
Red Hat Enterprise Linux Server - Extended Update Support 7.3 x86_64
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Red Hat Enterprise Linux for IBM z Systems 7 s390x
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Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 7.6 s390x
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Red Hat Enterprise Linux for Power, big endian - Extended Update Support 7.6 ppc64
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Red Hat Enterprise Linux for Power, big endian - Extended Update Support 7.5 ppc64
-
Red Hat Enterprise Linux for Power, big endian - Extended Update Support 7.3 ppc64
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Red Hat Enterprise Linux EUS Compute Node 7.6 x86_64
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Red Hat Enterprise Linux EUS Compute Node 7.5 x86_64
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Red Hat Enterprise Linux EUS Compute Node 7.4 x86_64
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Red Hat Enterprise Linux Server - AUS 7.6 x86_64
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Red Hat Enterprise Linux Server - AUS 7.4 x86_64
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Red Hat Enterprise Linux Server - AUS 7.3 x86_64
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Red Hat Enterprise Linux Workstation 7 x86_64
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Red Hat Enterprise Linux Desktop 7 x86_64
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Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 7.5 s390x
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Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 7.4 s390x
-
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 7.3 s390x
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Red Hat Enterprise Linux for Power, big endian 7 ppc64
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Red Hat Enterprise Linux for Power, big endian - Extended Update Support 7.4 ppc64
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Red Hat Enterprise Linux for Scientific Computing 7 x86_64
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Red Hat Enterprise Linux EUS Compute Node 7.3 x86_64
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Red Hat Enterprise Linux for Power, little endian 7 ppc64le
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Red Hat Enterprise Linux for Power, little endian - Extended Update Support 7.6 ppc64le
-
Red Hat Enterprise Linux for Power, little endian - Extended Update Support 7.5 ppc64le
-
Red Hat Enterprise Linux for Power, little endian - Extended Update Support 7.4 ppc64le
-
Red Hat Enterprise Linux for Power, little endian - Extended Update Support 7.3 ppc64le
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Red Hat Enterprise Linux Server - TUS 7.6 x86_64
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Red Hat Enterprise Linux Server - TUS 7.3 x86_64
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Red Hat Enterprise Linux Server (for IBM Power LE) - Update Services for SAP Solutions 7.6 ppc64le
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Red Hat Enterprise Linux Server (for IBM Power LE) - Update Services for SAP Solutions 7.4 ppc64le
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Red Hat Enterprise Linux Server (for IBM Power LE) - Update Services for SAP Solutions 7.3 ppc64le
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Red Hat Enterprise Linux Server - Update Services for SAP Solutions 7.6 x86_64
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Red Hat Enterprise Linux Server - Update Services for SAP Solutions 7.4 x86_64
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Red Hat Enterprise Linux Server - Update Services for SAP Solutions 7.3 x86_64
Fixes
- BZ - 1390510 - CVE-2016-8704 memcached: Server append/prepend remote code execution
- BZ - 1390511 - CVE-2016-8705 memcached: Server update remote code execution
- BZ - 1390512 - CVE-2016-8706 memcached: SASL authentication remote code execution
CVEs
References
Vulmon