Multiple integer overflows in the (1) get_time_t_max and (2) get_time_t_min functions in archive_read_support_format_mtree.c in libarchive before 3.2.0 allow remote attackers to have unspecified impact via a crafted mtree file, which triggers undefined behavior.
The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.
| Link | Tags |
|---|---|
| http://www.ubuntu.com/usn/USN-3033-1 | third party advisory vendor advisory |
| http://rhn.redhat.com/errata/RHSA-2016-1844.html | vendor advisory |
| https://blog.fuzzing-project.org/47-Many-invalid-memory-access-issues-in-libarchive.html | third party advisory |
| http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html | |
| http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00025.html | third party advisory vendor advisory |
| https://github.com/libarchive/libarchive/issues/539 | issue tracking exploit third party advisory |
| http://www.openwall.com/lists/oss-security/2016/06/17/2 | third party advisory mailing list |
| https://security.gentoo.org/glsa/201701-03 | vendor advisory |
| https://security-tracker.debian.org/tracker/CVE-2015-8931 | issue tracking third party advisory |
| http://www.openwall.com/lists/oss-security/2016/06/17/5 | third party advisory mailing list |
| http://www.debian.org/security/2016/dsa-3657 | vendor advisory |
| http://www.securityfocus.com/bid/91338 | vdb entry |