CVE-2016-2191 Information

Description

The bmp_read_rows function in pngxtern/pngxrbmp.c in OptiPNG before 0.7.6 allows remote attackers to cause a denial of service (invalid memory write and crash) via a series of delta escapes in a crafted BMP image.

CVSS Vector

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

Reference

http://lists.opensuse.org/opensuse-updates/2016-04/msg00061.html http://lists.opensuse.org/opensuse-updates/2016-04/msg00065.html http://packetstormsecurity.com/files/136553/Optipng-Invalid-Write.html http://seclists.org/fulldisclosure/2016/Apr/15 http://www.debian.org/security/2016/dsa-3546 http://www.openwall.com/lists/oss-security/2016/04/04/2 http://www.securityfocus.com/archive/1/537972/100/0/threaded http://www.ubuntu.com/usn/USN-2951-1 https://security.gentoo.org/glsa/201608-01 https://sourceforge.net/p/optipng/bugs/59/

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

REQUIRED

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

6.5