Vulnerability · Published Aug 24, 2022 · Assigned by redhat
CVE-2021-4214
Medium 5.5
In plain English
A medium-severity buffer overflow in libpng. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 46% of all known vulnerabilities).
Severity (CVSS NVD)5.5Medium
Exploit odds (30 days)0.5%top 54.2% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
A heap overflow flaw was found in libpngs' pngimage.c program. This flaw allows an attacker with local network access to pass a specially crafted PNG file to the pngimage utility, causing an application to crash, leading to a denial of service.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | libpng1.6 | no fix listed | DEBIAN-CVE-2021-4214 |
| Debian:13 | libpng1.6 | no fix listed | DEBIAN-CVE-2021-4214 |
| Debian:14 | libpng1.6 | no fix listed | DEBIAN-CVE-2021-4214 |
Affected products (as reported)
Weakness: CWE-120