Description
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.
References (4)
Core 4
Core References
Third Party Advisory x_refsource_confirm
https://securitylab.github.com/advisories/GHSL-2023-145_GHSL-2023-151_stb_image_h/
Third Party Advisory x_refsource_misc
https://github.com/nothings/stb/blob/5736b15f7ea0ffb08dd38af21067c314d6a3aae9/stb_vorbis.c#L1717-L1729
Third Party Advisory x_refsource_misc
https://github.com/nothings/stb/blob/5736b15f7ea0ffb08dd38af21067c314d6a3aae9/stb_vorbis.c#L1754-L1756
Third Party Advisory x_refsource_misc
https://github.com/nothings/stb/blob/5736b15f7ea0ffb08dd38af21067c314d6a3aae9/stb_vorbis.c#L3231
Scores
CVSS v3
5.3
EPSS
0.0002
EPSS Percentile
6.2%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-125
Status
published
Products (1)
nothings/stb_vorbis.c
1.22
Published
Oct 21, 2023
Tracked Since
Feb 18, 2026