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Bug 2246104 (CVE-2023-45663) - CVE-2023-45663 stb: memory access violations
Summary: CVE-2023-45663 stb: memory access violations
Keywords:
Status: NEW
Alias: CVE-2023-45663
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2246106 2246107 2246108
Blocks:
TreeView+ depends on / blocked
 
Reported: 2023-10-25 13:04 UTC by ybuenos
Modified: 2023-10-26 01:01 UTC (History)
0 users

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments (Terms of Use)

Description ybuenos 2023-10-25 13:04:23 UTC 
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.

https://github.com/nothings/stb/blob/5736b15f7ea0ffb08dd38af21067c314d6a3aae9/stb_image.h#L5936C10-L5936C20
https://github.com/nothings/stb/blob/5736b15f7ea0ffb08dd38af21067c314d6a3aae9/stb_image.h#L7221
https://github.com/nothings/stb/blob/5736b15f7ea0ffb08dd38af21067c314d6a3aae9/stb_image.h#L1664
https://securitylab.github.com/advisories/GHSL-2023-145_GHSL-2023-151_stb_image_h/
Comment 1 ybuenos 2023-10-25 13:06:55 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 01:01:16 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.
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