Midnight Commander (mc) 4.8.5 does not properly handle the (1) MC_EXT_SELECTED or (2) MC_EXT_ONLYTAGGED environment variables when multiple files are selected, which allows user-assisted remote attackers to execute arbitrary commands via a crafted file name.

References

• https://nvd.nist.gov/vuln/detail/CVE-2012-4463
• https://bugs.gentoo.org/show_bug.cgi?id=436518#c7
• https://bugzilla.redhat.com/show_bug.cgi?id=862813
• https://exchange.xforce.ibmcloud.com/vulnerabilities/79033
• https://www.midnight-commander.org/ticket/2913
• http://www.openwall.com/lists/oss-security/2012/10/03/4
• http://www.openwall.com/lists/oss-security/2012/10/03/5
• http://www.securityfocus.com/bid/55777