The read_CodersInfo cuntion in archive_read_support_format_7zip.c in libarchive before 3.2.0 allows remote attackers to cause a denial of service (NULL pointer derference and crash) via a crafted 7z file, related to the _7z_folder struct. http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2015-8922
