Bug 1148232 – CVE-2014-3677 shim: memory corruption flaw when processing Machine Owner Keys (MOKs)

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Bug 1148232 - (CVE-2014-3677) CVE-2014-3677 shim: memory corruption flaw when processing Machine Owner Keys (MOKs)

Summary:	CVE-2014-3677 shim: memory corruption flaw when processing Machine Owner Keys...

Status:	CLOSED ERRATA

Aliases:	CVE-2014-3677

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=20141013,repor...
Keywords:	Security

Depends On:	1148239 1148240 1152388
Blocks:	1148235
	Show dependency tree / graph

Reported:	2014-09-30 22:45 EDT by Murray McAllister
Modified:	2015-11-25 05:13 EST (History)
CC List:	7 users (show)

See Also:
Fixed In Version:	shim-0.7-8.el7
Doc Type:	Bug Fix
Doc Text:	An out-of-bounds memory write flaw was found in the way shim processed certain Machine Owner Keys (MOKs). A local attacker could potentially use this flaw to execute arbitrary code on the system.
Story Points:	---
Clone Of:
Environment:
Last Closed:	2014-11-04 13:50:31 EST
Type:	---
Regression:	---
Mount Type:	---
Documentation:	---
CRM:
Verified Versions:
Category:	---
oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---

Attachments	(Terms of Use)
proposed patch (2.61 KB, patch) 2014-09-30 22:58 EDT, Murray McAllister	no flags	Details \| Diff
Add an attachment (proposed patch, testcase, etc.)

External Trackers
Tracker	ID	Priority	Status	Summary	Last Updated
Red Hat Product Errata	RHSA-2014:1801	normal	SHIPPED_LIVE	Moderate: shim security update	2014-11-04 17:56:40 EST

Groups: None (edit)

Description Murray McAllister 2014-09-30 22:45:47 EDT

A flaw was found in the way shim processed Machine Owner Keys (MOKs). This could lead to memory corruption in shim, possibly leading to arbitrary code execution.

Acknowledgements:

Red Hat would like to thank the SUSE Security Team for reporting this issue.

Comment 3 Murray McAllister 2014-09-30 22:58:09 EDT

Created attachment 942903 [details]
proposed patch

Comment 6 Murray McAllister 2014-10-13 23:59:54 EDT

Public now:

http://seclists.org/oss-sec/2014/q4/311

Comment 7 Murray McAllister 2014-10-14 00:03:00 EDT

Created shim tracking bugs for this issue:

Affects: fedora-all [bug 1152388]

Comment 9 Fedora Update System 2014-11-01 13:07:39 EDT

shim-0.8-1.fc22, shim-signed-0.8-1.fc22, mokutil-0.2.0-1.fc21 has been pushed to the Fedora 21 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 10 Martin Prpič 2014-11-04 05:25:25 EST

IssueDescription:

An out-of-bounds memory write flaw was found in the way shim processed certain Machine Owner Keys (MOKs). A local attacker could potentially use this flaw to execute arbitrary code on the system.

Comment 11 errata-xmlrpc 2014-11-04 12:56:54 EST

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2014:1801 https://rhn.redhat.com/errata/RHSA-2014-1801.html

Comment 12 Fedora Update System 2014-11-11 21:36:06 EST

mokutil-0.2.0-1.fc19, shim-signed-0.8-2 has been pushed to the Fedora 19 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 13 Fedora Update System 2014-11-11 21:41:02 EST

mokutil-0.2.0-1.fc20, shim-signed-0.8-3 has been pushed to the Fedora 20 stable repository.  If problems still persist, please make note of it in this bug report.

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