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Vulnerability · Published Oct 21, 2021 · Assigned by mitre

CVE-2021-42715

Medium 5.5

In plain English

A medium-severity security flaw in the libstb package (Debian). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.3% (higher than 71% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)5.5Medium
Exploit odds (30 days)1.3%top 29.4% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

An issue was discovered in stb stb_image.h 1.33 through 2.27. The HDR loader parsed truncated end-of-file RLE scanlines as an infinite sequence of zero-length runs. An attacker could potentially have caused denial of service in applications using stb_image by submitting crafted HDR files.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12libstbno fix listedDEBIAN-CVE-2021-42715
Debian:13libstb0.0~git20230129.5736b15+ds-1DEBIAN-CVE-2021-42715
Debian:14libstb0.0~git20230129.5736b15+ds-1DEBIAN-CVE-2021-42715
Ubuntu:22.04:LTSlibstbno fix listedUBUNTU-CVE-2021-42715
Ubuntu:24.04:LTSlibstbno fix listedUBUNTU-CVE-2021-42715
Ubuntu:25.10libstbno fix listedUBUNTU-CVE-2021-42715
Ubuntu:26.04:LTSlibstbno fix listedUBUNTU-CVE-2021-42715
Ubuntu:26.10libstbno fix listedUBUNTU-CVE-2021-42715

Affected products (as reported)

VendorProductVersions
n/a n/a n/a

References