CVE-2023-45663

Published: 21 October 2023

stb_image is a single file MIT licensed library for processing images. The stbi__getn function reads a specified number of bytes from context (typically a file) into the specified buffer. In case the file stream points to the end, it returns zero. There are two places where its return value is not checked: In the `stbi__hdr_load` function and in the `stbi__tga_load` function. The latter of the two is likely more exploitable as an attacker may also control the size of an uninitialized buffer.

Priority

Cvss 3 Severity Score

5.5

Score breakdown

Status

Package	Release	Status
libstb Launchpad, Ubuntu, Debian	bionic	Ignored (end of standard support)
	focal	Needs triage
	jammy	Needs triage
	lunar	Ignored (end of life, was needs-triage)
	mantic	Needs triage
	trusty	Ignored (end of standard support)
	upstream	Needs triage
	xenial	Ignored (end of standard support)

Severity score breakdown

Parameter	Value
Base score	5.5
Attack vector	Local
Attack complexity	Low
Privileges required	None
User interaction	Required
Scope	Unchanged
Confidentiality	High
Integrity impact	None
Availability impact	None
Vector	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

References

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