Out-of-bounds Read in Swftools

CVE-2017-16794

The png_load function in lib/png.c in SWFTools 0.9.2 does not properly validate a multiplication of width and bits-per-pixel values, which allows remote attackers to cause a denial of service (heap-based buffer over-read and application crash) via a crafted file, as demonstrated by an erroneous png_load call that occurs because of incorrect integer data types in png2swf.

Vulnerability class: Buffer Overflow

EPSS: 0.010 (59.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

Affected products

  • Swftools — versions 0.9.2
  • N/a — versions n/a

Weakness classification (CWE)

Public proof-of-concept exploits

References

  • cve@mitre.org (Third Party Advisory, x_refsource_MISC, Issue Tracking)

Frequently asked questions

What is CVE-2017-16794?
CVE-2017-16794 is a medium-severity vulnerability in Swftools, classified under Out-of-bounds Read. CVSS score: 5.5/10. Published 2017-11-12.
How severe is CVE-2017-16794?
Medium severity. CVSS v3 base score is 5.5 out of 10.
Is CVE-2017-16794 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.