CVE-2021-42716
7.1CVSSHIGH
Description
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.
CVSS Vector Breakdown
Exploitability
AV:LAttack VectorLocal
AC:LAttack ComplexityLow
PR:NPrivileges RequiredNone
UI:RUser InteractionRequired
Scope
S:UScopeUnchanged
Impact
C:HConfidentialityHigh
I:NIntegrityNone
A:HAvailabilityHigh
Weaknesses
Affected Products
сообщество свободного программного обеспеченияoss-projectOperating Systemsaka сообщество свободного программного обеспечения, fsf
and 1 more affected products View all →
Attack Graph
Products CVE Techniques Tactics
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Exploitability
2 exploit sources identified
Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.
View exploit details Official Patch Available
MITRE ATT&CK
2 techniques Initial Access
Privilege Escalation
References
https://github.com/nothings/stb/issues/1166
github.com
https://github.com/nothings/stb/issues/1225
github.com
https://github.com/nothings/stb/pull/1223
github.com
and 15 more references View all →
Timeline
Published
Oct 21, 2021
Last Updated
Nov 21, 2024
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