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prionPRIOn knowledge basePRION:CVE-2021-42716
HistoryOct 21, 2021 - 7:15 p.m.

Buffer overflow

2021-10-2119:15:00
PRIOn knowledge base
www.prio-n.com
5

7.1 High

AI Score

Confidence

High

0.002 Low

EPSS

Percentile

55.3%

An issue was discovered in stb stb_image.h 2.27. The PNM loader incorrectly interpreted 16-bit PGM files as 8-bit when converting to RGBA, leading to a buffer overflow when later reinterpreting the result as a 16-bit buffer. An attacker could potentially have crashed a service using stb_image, or read up to 1024 bytes of non-consecutive heap data without control over the read location.

CPENameOperatorVersion
fedoraeq33
fedoraeq34
fedoraeq35
stb_image.heq2.27

References

7.1 High

AI Score

Confidence

High

0.002 Low

EPSS

Percentile

55.3%