CVE-2016-2191

MEDIUM 6.5CVE-2016-2191 · Published 13/04/2016 · updated 17/06/2026

In short

CVE-2016-2191 is a MEDIUM (CVSS 6.5) vulnerability affecting optipng (optipng).
Chance of exploitation in the next 30 days (EPSS): 3.5%, higher than 89.3% of all vulnerabilities.
No patched version is listed yet: follow the vendor's advisory in References.

Package	Affected versions	Patched versions
optipng optipng	`= 0.7.2`	No fix yet

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.

References

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

More vulnerabilities in optipng

See all →

Running one of these products? Scan your site to see whether it exposes a vulnerable version.

Scan my site free

Package

Affected versions

Patched versions

optipng

= 0.7.2

No fix yet

More vulnerabilities in optipng

See all →