CVE-2023-45682: Wild address read in vorbis_decode_packet_rest in stb_vorbis
First published: Fri Oct 20 2023(Updated: )
stb_vorbis is a single file MIT licensed library for processing ogg vorbis files. A crafted file may trigger out of bounds read in `DECODE` macro when `var` is negative. As it can be seen in the definition of `DECODE_RAW` a negative `var` is a valid value. This issue may be used to leak internal memory allocation information.
Credit: security-advisories@github.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Nothings STB | =1.22 |
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Reference Links
- https://securitylab.github.com/advisories/GHSL-2023-145_GHSL-2023-151_stb_image_h/
- https://github.com/nothings/stb/blob/5736b15f7ea0ffb08dd38af21067c314d6a3aae9/stb_vorbis.c#L1717-L1729
- https://github.com/nothings/stb/blob/5736b15f7ea0ffb08dd38af21067c314d6a3aae9/stb_vorbis.c#L1754-L1756
- https://github.com/nothings/stb/blob/5736b15f7ea0ffb08dd38af21067c314d6a3aae9/stb_vorbis.c#L3231
Frequently Asked Questions
What is CVE-2023-45682?
CVE-2023-45682 is a vulnerability in the stb_vorbis library that allows for a wild address read in the vorbis_decode_packet_rest function.
How does CVE-2023-45682 affect the stb_vorbis library?
CVE-2023-45682 affects version 1.22 of the stb_vorbis library.
What is the severity of CVE-2023-45682?
CVE-2023-45682 has a severity value of 7.1, which is considered high.
How can CVE-2023-45682 be exploited?
CVE-2023-45682 can be exploited by crafting a file that triggers an out-of-bounds read in the DECODE macro when var is negative.
Is there a fix for CVE-2023-45682?
Yes, the fix for CVE-2023-45682 can be found in the stb_vorbis.c file at lines 1717-1729 and 1754-1756 in the stb_vorbis library's GitHub repository.
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