Buffer overflow in Graphicsmagick

CVE-2020-12672

GraphicsMagick through 1.3.35 has a heap-based buffer overflow in ReadMNGImage in coders/png.c.

Vulnerability class: Buffer Overflow

EPSS: 0.029 (85.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Graphicsmagick
Debian Debian_linux — versions 8.0
Opensuse Backports_sle — versions 15.0
Opensuse Leap — versions 15.1
N/a — versions n/a

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

Public proof-of-concept exploits

References

cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)
cve@mitre.org (mailing-list, x_refsource_MLIST, Mailing List, Third Party Advisory)
cve@mitre.org (vendor-advisory, Mailing List, Third Party Advisory, x_refsource_SUSE)
cve@mitre.org (vendor-advisory, Mailing List, Third Party Advisory, x_refsource_SUSE)
cve@mitre.org (vendor-advisory, Third Party Advisory, x_refsource_GENTOO)

Frequently asked questions

What is CVE-2020-12672?: CVE-2020-12672 is a high-severity vulnerability in Graphicsmagick, classified under Out-of-bounds Write. CVSS score: 7.5/10. Published 2020-05-06.
How severe is CVE-2020-12672?: High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2020-12672 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.