Bug 862813 (CVE-2012-4463)

Summary:	CVE-2012-4463 mc: Improper sanitization of MC_EXT_SELECTED variable when viewing multiple files
Product:	[Other] Security Response	Reporter:	Jan Lieskovsky <jlieskov>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED NOTABUG	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	dvlasenk, leonard-rh-bugzilla, pahan, slavazanko
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2019-06-10 10:59:24 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:	862814
Bug Blocks:

Description Jan Lieskovsky 2012-10-03 15:29:03 UTC

A security flaw was found in the way Midnight Commander, a user-friendly text console file manager and visual shell, performed sanitization of MC_EXT_SELECTED environment variable when multiple files were selected (first selected file was used as actual content of the MC_EXT_SELECTED variable, while the remaining files were provided as arguments to the temporary script, handling the F3 / Enter key press event). A remote attacker could provide a specially-crafted archive that, when expanded and previewed by the victim could lead to arbitrary code execution with the privileges of the user running mc executable.

References:
[1] https://bugs.gentoo.org/show_bug.cgi?id=436518

Upstream ticket:
[2] https://www.midnight-commander.org/ticket/2913

Comment 1 Jan Lieskovsky 2012-10-03 15:31:06 UTC

This issue did NOT affect the versions of the mc package, as shipped with Red Hat Enterprise Linux 5 and 6.

--

This issue affects the versions of the mc package, as shipped with Fedora release of 16 and 17. Please schedule an update (once there is final upstream patch available).

Comment 2 Jan Lieskovsky 2012-10-03 15:32:08 UTC

Created mc tracking bugs for this issue

Affects: fedora-all [bug 862814]

Comment 3 Jan Lieskovsky 2012-10-03 15:44:11 UTC

CVE Request:
[3] http://www.openwall.com/lists/oss-security/2012/10/03/4

Comment 4 Jan Lieskovsky 2012-10-03 16:48:26 UTC

The CVE identifier of CVE-2012-4463 has been assigned to this issue:
[4] http://www.openwall.com/lists/oss-security/2012/10/03/5

Comment 5 Fedora Update System 2012-12-04 05:21:44 UTC

mc-4.8.6-2.fc18 has been pushed to the Fedora 18 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 6 Fedora Update System 2012-12-07 03:26:54 UTC

mc-4.8.6-2.fc17 has been pushed to the Fedora 17 stable repository.  If problems still persist, please make note of it in this bug report.