CVE-2016-4300

Published: 23 June 2016

Integer overflow in the read_SubStreamsInfo function in archive_read_support_format_7zip.c in libarchive before 3.2.1 allows remote attackers to execute arbitrary code via a 7zip file with a large number of substreams, which triggers a heap-based buffer overflow.

Priority

Medium

CVSS 3 base score: 7.8

Status

Package Release Status
libarchive
Launchpad, Ubuntu, Debian
Upstream Needed

Ubuntu 16.04 LTS (Xenial Xerus)
Released (3.1.2-11ubuntu0.16.04.2)
Ubuntu 14.04 ESM (Trusty Tahr)
Released (3.1.2-7ubuntu2.3)
Patches:
Upstream: https://github.com/libarchive/libarchive/commit/3d469df8eaace8297a27ce62befa295c0fdc5a3a (bp)
Upstream: https://github.com/libarchive/libarchive/commit/e79ef306afe332faf22e9b442a2c6b59cb175573