CVE-2016-2191
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.
Does this matter?
Lower severity and a low EPSS score (3.52%). Track it; it rarely justifies an emergency change on its own.
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 3.0
- 6.5 MEDIUMCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- EPSS
- 3.52% probability · 89th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-119
- Affected
- optipng/optipng · canonical/ubuntu linux · debian/debian linux · opensuse/leap · opensuse/opensuse
- Source
- secalert@redhat.com
EPSS 3.5% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://lists.opensuse.org/opensuse-updates/2016-04/msg00061.htmlThird Party Advisory
- http://lists.opensuse.org/opensuse-updates/2016-04/msg00065.htmlThird Party Advisory
- http://packetstormsecurity.com/files/136553/Optipng-Invalid-Write.htmlExploit
- http://seclists.org/fulldisclosure/2016/Apr/15Third Party Advisory
- http://www.debian.org/security/2016/dsa-3546Third Party Advisory
- http://www.openwall.com/lists/oss-security/2016/04/04/2Third Party Advisory
- http://www.securityfocus.com/archive/1/537972/100/0/threaded
- http://www.ubuntu.com/usn/USN-2951-1Third Party Advisory
- https://security.gentoo.org/glsa/201608-01
- https://sourceforge.net/p/optipng/bugs/59/Patch
- http://lists.opensuse.org/opensuse-updates/2016-04/msg00061.htmlThird Party Advisory
- http://lists.opensuse.org/opensuse-updates/2016-04/msg00065.htmlThird Party Advisory
- http://packetstormsecurity.com/files/136553/Optipng-Invalid-Write.htmlExploit
- http://seclists.org/fulldisclosure/2016/Apr/15Third Party Advisory
- http://www.debian.org/security/2016/dsa-3546Third Party Advisory
- http://www.openwall.com/lists/oss-security/2016/04/04/2Third Party Advisory
- http://www.securityfocus.com/archive/1/537972/100/0/threaded
- http://www.ubuntu.com/usn/USN-2951-1Third Party Advisory
- https://security.gentoo.org/glsa/201608-01
- https://sourceforge.net/p/optipng/bugs/59/Patch
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.