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Bug 1555064 - (CVE-2018-1000127) CVE-2018-1000127 memcached: Integer Overflow in items.c:item_free()
CVE-2018-1000127 memcached: Integer Overflow in items.c:item_free()
Status: NEW
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
medium Severity medium
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Assigned To: Red Hat Product Security
impact=moderate,public=20170427,repor...
: Security
Depends On: 1555065 1557286 1557287 1557093 1557646 1557647 1557648 1557649
Blocks: 1555067
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Reported: 2018-03-13 18:05 EDT by Laura Pardo
Modified: 2018-09-23 22:50 EDT (History)
29 users (show)

See Also:
Fixed In Version: memcached 1.4.37
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RHEL 7.3 requirements from Atomic Host:
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External Trackers
Tracker ID Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2018:2290 None None None 2018-07-30 13:41 EDT

  None (edit)
Description Laura Pardo 2018-03-13 18:05:27 EDT 
A flaw was found in memcached version prior to 1.4.37. It contains an Integer
Overflow vulnerability in items.c:item_free() that can result in resource leaks
or data corruption, deadlocks and crashes due to items existing in hash table
being reused from free list. This attack appear to be exploitable via network
connectivity to the memcached service.


References:
https://github.com/memcached/memcached/issues/271
https://github.com/memcached/memcached/wiki/ReleaseNotes1437

Upstream Patch:
https://github.com/memcached/memcached/commit/a8c4a82787b8b6c256d61bd5c42fb7f92d1bae00
Comment 1 Laura Pardo 2018-03-13 18:06:26 EDT 
Created memcached tracking bugs for this issue:

Affects: openstack-rdo [bug 1555065]
Comment 4 Riccardo Schirone 2018-03-16 07:40:38 EDT 
RHEL 6 is affected by this flaw, being subject to the integer overflow in items.c:item_free(), but items are not put back in the freelist if they are still used. However, it can cause memory leaks and, potentially, resource exhaustion.
Comment 7 errata-xmlrpc 2018-07-30 13:41:41 EDT 
This issue has been addressed in the following products:

  Red Hat OpenStack Platform 10.0 (Newton)

Via RHSA-2018:2290 https://access.redhat.com/errata/RHSA-2018:2290
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