Bug 1332090 – CVE-2015-8869 ocaml: sizes arguments are sign-extended from 32 to 64 bits

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Bug 1332090 - (CVE-2015-8869) CVE-2015-8869 ocaml: sizes arguments are sign-extended from 32 to 64 bits

Summary:	CVE-2015-8869 ocaml: sizes arguments are sign-extended from 32 to 64 bits

Status:	CLOSED ERRATA

Aliases:	CVE-2015-8869

Product:	Security Response
Classification:	Other
Component:	vulnerability (Show other bugs)
Sub Component:
Version:	unspecified
Hardware:	All Linux

Priority	medium Severity medium
Target Milestone:	---
Target Release:	---
Assigned To:	Red Hat Product Security
QA Contact:
Docs Contact:

URL:
Whiteboard:	impact=moderate,public=20160428,repor...
Keywords:	Security

Depends On:	1332091 1343081 1343082 1343100 1343101 1343103 1344243
Blocks:	1332092
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Reported:	2016-05-02 04:08 EDT by Andrej Nemec
Modified:	2017-03-21 05:02 EDT (History)
CC List:	4 users (show)

See Also:
Fixed In Version:	ocaml 4.03.0
Doc Type:	Bug Fix
Doc Text:	An integer conversion flaw was found in the way OCaml's String handled its length. Certain operations on an excessively long String could trigger a buffer overflow or result in an information leak.
Story Points:	---
Clone Of:
Environment:
Last Closed:	2017-03-21 05:02:05 EDT
Type:	---
Regression:	---
Mount Type:	---
Documentation:	---
CRM:
Verified Versions:
Category:	---
oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---

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External Trackers
Tracker	ID	Priority	Status	Summary	Last Updated
Red Hat Product Errata	RHSA-2016:1296	normal	SHIPPED_LIVE	Moderate: ocaml security update	2016-06-23 15:43:55 EDT
Red Hat Product Errata	RHSA-2016:2576	normal	SHIPPED_LIVE	Moderate: libguestfs and virt-p2v security, bug fix, and enhancement update	2016-11-03 08:06:51 EDT
Red Hat Product Errata	RHSA-2017:0564	normal	SHIPPED_LIVE	Moderate: libguestfs security and bug fix update	2017-03-21 08:21:18 EDT
Red Hat Product Errata	RHSA-2017:0565	normal	SHIPPED_LIVE	Moderate: ocaml security update	2017-03-21 08:21:41 EDT

Groups: None (edit)

Description Andrej Nemec 2016-05-02 04:08:50 EDT

OCaml versions 4.02.3 and earlier have a runtime bug that, on 64-bit platforms, causes sizes arguments to an internal memmove call to be sign-extended from 32 to 64-bits before being passed to the memmove function.

This leads arguments between 2GiB and 4GiB to be interpreted as larger than they are (specifically, a bit below 2^64), causing a buffer overflow.

Arguments between 4GiB and 6GiB are interpreted as 4GiB smaller than they should be, causing a possible information leak.

References:

http://seclists.org/oss-sec/2016/q2/165

Upstream fix:

https://github.com/ocaml/ocaml/commit/659615c7b100a89eafe6253e7a5b9d84d0e8df74#diff-a97df53e3ebc59bb457191b496c90762

Comment 1 Andrej Nemec 2016-05-02 04:09:08 EDT

Created ocaml tracking bugs for this issue:

Affects: fedora-all [bug 1332091]

Comment 3 Fedora Update System 2016-05-08 20:04:00 EDT

ocaml-4.02.3-3.fc24 has been pushed to the Fedora 24 stable repository. If problems still persist, please make note of it in this bug report.

Comment 4 Fedora Update System 2016-05-15 01:31:11 EDT

ocaml-4.02.2-5.fc23 has been pushed to the Fedora 23 stable repository. If problems still persist, please make note of it in this bug report.

Comment 10 errata-xmlrpc 2016-06-23 11:44:14 EDT

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2016:1296 https://access.redhat.com/errata/RHSA-2016:1296

Comment 11 errata-xmlrpc 2016-11-03 14:00:10 EDT

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2016:2576 https://rhn.redhat.com/errata/RHSA-2016-2576.html

Comment 13 errata-xmlrpc 2017-03-21 04:56:00 EDT

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6

Via RHSA-2017:0564 https://rhn.redhat.com/errata/RHSA-2017-0564.html

Comment 14 errata-xmlrpc 2017-03-21 04:56:35 EDT

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6

Via RHSA-2017:0565 https://rhn.redhat.com/errata/RHSA-2017-0565.html

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