Bug 862813 - (CVE-2012-4463) CVE-2012-4463 mc: Improper sanitization of MC_EXT_SELECTED variable when viewing multiple files
CVE-2012-4463 mc: Improper sanitization of MC_EXT_SELECTED variable when view...
Status: NEW
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
low Severity low
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Assigned To: Red Hat Product Security
impact=low,public=20120928,reported=2...
: Security
Depends On: 862814
Blocks:
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Reported: 2012-10-03 11:29 EDT by Jan Lieskovsky
Modified: 2015-03-04 20:22 EST (History)
5 users (show)

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Doc Type: Bug Fix
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RHEL 7.3 requirements from Atomic Host:


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Description Jan Lieskovsky 2012-10-03 11:29:03 EDT
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 11:31:06 EDT
This issue did NOT affect the versions of the mc package, as shipped with Red Hat Enterprise Linux 5 and 6.

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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 11:32:08 EDT
Created mc tracking bugs for this issue

Affects: fedora-all [bug 862814]
Comment 3 Jan Lieskovsky 2012-10-03 11:44:11 EDT
CVE Request:
[3] http://www.openwall.com/lists/oss-security/2012/10/03/4
Comment 4 Jan Lieskovsky 2012-10-03 12:48:26 EDT
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 00:21:44 EST
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 2012-12-06 22:26:54 EST
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.

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