Bug 2246105 (CVE-2023-45664)

Summary:	CVE-2023-45664 stb: memory access violations
Product:	[Other] Security Response	Reporter:	ybuenos
Component:	vulnerability	Assignee:	Product Security <prodsec-ir-bot>
Status:	NEW ---	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	Keywords:	Security
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Hardware:	All
OS:	Linux
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
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Bug Depends On:	2246106, 2246107, 2246108
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Description ybuenos 2023-10-25 13:05:30 UTC

stb_image is a single file MIT licensed library for processing images. A crafted image file can trigger `stbi__load_gif_main_outofmem` attempt to double-free the out variable. This happens in `stbi__load_gif_main` because when the `layers * stride` value is zero the behavior is implementation defined, but common that realloc frees the old memory and returns null pointer. Since it attempts to double-free the memory a few lines below the first “free”, the issue can be potentially exploited only in a multi-threaded environment. In the worst case this may lead to code execution.

https://securitylab.github.com/advisories/GHSL-2023-145_GHSL-2023-151_stb_image_h/
https://github.com/nothings/stb/blob/5736b15f7ea0ffb08dd38af21067c314d6a3aae9/stb_image.h#L6993-L6995

Comment 1 ybuenos 2023-10-25 13:07:01 UTC

Created assimp tracking bugs for this issue:

Affects: epel-8 [bug 2246108]


Created stb tracking bugs for this issue:

Affects: epel-all [bug 2246107]
Affects: fedora-all [bug 2246106]

Comment 2 Fedora Update System 2023-10-26 01:01:18 UTC

FEDORA-2023-58af3a2eca has been pushed to the Fedora 40 stable repository.
If problem still persists, please make note of it in this bug report.