Just karma whoring here, since I noticed the announcement and figured the news needs to spread. Cisco Talis discovered a number of bugs in 7zip versions prior to 16.00, some of which lead to arbitrary code execution when processing certain malformed archives:
http://www.zdnet.com/article/severe-7-zip-vulnerabilities-cause-top-security-software-tools-patch-panic/#ftag=RSSbaffb68 http://blog.talosintel.com/2016/05/multiple-7-zip-vulnerabilities.html Versions from 9.20 to 15.00 are said to contain some or all of the bugs. The comment stream in the 2nd link contains this remark: "By default 7zip will pass inputs through all of its decompression routines so blocking certain extensions will not work unless you also pass a command line argument that specifies the parser to use. These bugs will trigger with a malformed UDF/HFS file with a .zip extension unless the added command line argument is used." Upgrading to 7zip V16.00 ("as soon as possible") is said to fix the vulnerabilities. The official 7zip changelog at http://www.7-zip.org/history.txt for 16.00 just says "Some bugs were fixed". Nick -- Cloud so convenient Service provider not bright All the files are gone _______________________________________________ Sent through the Full Disclosure mailing list https://nmap.org/mailman/listinfo/fulldisclosure Web Archives & RSS: http://seclists.org/fulldisclosure/
