Bug 1433985 (CVE-2016-10253)

Summary:	CVE-2016-10253 erlang: Heap-buffer overflow via regular expressions
Product:	[Other] Security Response	Reporter:	Andrej Nemec <anemec>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED WONTFIX	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	apevec, ayoung, chrisw, cvsbot-xmlrpc, erlang, gmollett, jeckersb, jjoyce, jschluet, kbasil, lemenkov, lhh, lpeer, markmc, plemenko, rbryant, rhbugs, rjones, sclewis, sisharma, s, tdecacqu
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
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Fixed In Version:		Doc Type:	If docs needed, set a value
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Clone Of:		Environment:
Last Closed:	2019-06-08 03:09:15 UTC	Type:	---
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	1433989, 1433986, 1433988, 1467165
Bug Blocks:	1433990

Description Andrej Nemec 2017-03-20 13:51:35 UTC

An issue was discovered in Erlang/OTP Erlang's generation of compiled regular expressions is vulnerable to a heap overflow. Regular expressions using a malformed extpattern can indirectly specify an offset that is used as an array index. This ordinal permits arbitrary regions within the erts_alloc arena to be both read and written to. 

References:

https://github.com/erlang/otp/pull/1108

Comment 1 Andrej Nemec 2017-03-20 13:55:58 UTC

Created erlang tracking bugs for this issue:

Affects: fedora-all [bug 1433986]
Affects: epel-6 [bug 1433988]
Affects: epel-7 [bug 1433989]