CVE-2016-2191

moderate-risk

Published 2016-04-13

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.

Do I need to act?

2.1% chance of exploitation in next 30 days

EPSS score — moderate exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 6.5/10 Medium

NETWORK / LOW complexity

Affected Products (8)

Optipng

Ubuntu Linux

Debian Linux

Opensuse

Leap

Affected Vendors

Canonical Optipng Opensuse Debian

References (20)

Third Party Advisory http://lists.opensuse.org/opensuse-updates/2016-04/msg00061.html

Third Party Advisory http://lists.opensuse.org/opensuse-updates/2016-04/msg00065.html

Exploit http://packetstormsecurity.com/files/136553/Optipng-Invalid-Write.html

Third Party Advisory http://seclists.org/fulldisclosure/2016/Apr/15

Third Party Advisory http://www.debian.org/security/2016/dsa-3546

Third Party Advisory http://www.openwall.com/lists/oss-security/2016/04/04/2

http://www.securityfocus.com/archive/1/537972/100/0/threaded

Third Party Advisory http://www.ubuntu.com/usn/USN-2951-1

https://security.gentoo.org/glsa/201608-01

Patch https://sourceforge.net/p/optipng/bugs/59/