CVE-2016-8689

high

Description

The read_Header function in archive_read_support_format_7zip.c in libarchive 3.2.1 allows remote attackers to cause a denial of service (out-of-bounds read) via multiple EmptyStream attributes in a header in a 7zip archive.

References

http://lists.opensuse.org/opensuse-updates/2016-12/msg00027.html

http://www.openwall.com/lists/oss-security/2016/10/16/11

http://www.securityfocus.com/bid/93781

https://blogs.gentoo.org/ago/2016/09/11/libarchive-bsdtar-heap-based-buffer-overflow-in-read_header-archive_read_support_format_7zip-c/

https://bugzilla.redhat.com/show_bug.cgi?id=1377925

https://github.com/libarchive/libarchive/commit/7f17c791dcfd8c0416e2cd2485b19410e47ef126

https://lists.debian.org/debian-lts-announce/2018/11/msg00037.html

https://security.gentoo.org/glsa/201701-03

Details

Source: MITRE

Published: 2017-02-15

Updated: 2018-11-30

Type: CWE-125

Risk Information

CVSS v2

Base Score: 5

Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P

Impact Score: 2.9

Exploitability Score: 10

Severity: MEDIUM

CVSS v3

Base Score: 7.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Impact Score: 3.6

Exploitability Score: 3.9

Severity: HIGH