Bug 1300303 (CVE-2015-8778)

Summary:	CVE-2015-8778 glibc: Integer overflow in hcreate and hcreate_r
Product:	[Other] Security Response	Reporter:	Adam Mariš <amaris>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	aavati, arjun.is, ashankar, codonell, fweimer, jakub, jwalter, law, mfabian, mnewsome, nlevinki, pfrankli, rfortier, rhs-bugs, sardella, sgirijan, siddhesh, slawomir, ssaha, vbellur, yozone
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	glibc 2.23	Doc Type:	Bug Fix
Doc Text:	An integer overflow vulnerability was found in hcreate() and hcreate_r() functions which could result in an out-of-bounds memory access. This could lead to application crash or, potentially, arbitrary code execution.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2019-06-08 02:47:34 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	1300304, 1358013, 1374657
Bug Blocks:	1300316, 1386080, 1415638

Description Adam Mariš 2016-01-20 12:52:02 UTC

An integer overflow vulnerability was found in hcreate and hcreate_r which can result in an out-of-bound memory access.  This could lead to application crashes or, potentially, arbitrary code execution.

Upstream bug:

https://sourceware.org/bugzilla/show_bug.cgi?id=18240

CVE assignment:

http://seclists.org/oss-sec/2016/q1/153

Comment 1 Adam Mariš 2016-01-20 12:52:55 UTC

Created glibc tracking bugs for this issue:

Affects: fedora-all [bug 1300304]

Comment 4 Martin Prpič 2016-07-07 07:57:03 UTC

Mitigation:

Do not use any applications which call hcreate or hcreate_r with a large size argument.

These functions are used only rarely, and most callers supply a constant argument.  Other applications calculate the size argument in such a way that the error condition cannot be triggered.

Comment 6 errata-xmlrpc 2017-03-21 10:35:25 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6

Via RHSA-2017:0680 https://rhn.redhat.com/errata/RHSA-2017-0680.html

Comment 8 errata-xmlrpc 2017-08-01 18:12:58 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2017:1916 https://access.redhat.com/errata/RHSA-2017:1916