CVE-2023-45680 json
Null pointer dereference in vorbis_deinit in stb_vorbis
published 2023-10-20 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-49970
- cvss
- 5.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.6%
- EPSS 0.6% chance of exploitation in 30 days, percentile 46%
- public exploits
- 0
- none known
Summary
stb_vorbis is a single file MIT licensed library for processing ogg vorbis files. A crafted file may trigger memory allocation failure in `start_decoder`. In that case the function returns early, the `f->comment_list` is set to `NULL`, but `f->comment_list_length` is not reset. Later in `vorbis_deinit` it tries to dereference the `NULL` pointer. This issue may lead to denial of service.
Patch / fix
- SDL2_sound Package Hub 15 SP6, openSUSE Leap 15.6 2.0.4-bp156.2.3.1
opensuse advisories openSUSE-SU-2025:0037-1
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 2 y ago
Exploit prediction
0.55% chance of exploitation in the next 30 days, higher than 46% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L |
| NVD | 3.1 | 5.5 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |
Affected products
- nothings stb
Classification
- Weakness
-
- CWE-476 NULL Pointer Dereference
References
-
securitylab.github.com
/advisories/GHSL-2023-145_GHSL-2023-151_stb_image_h/
third-party-advisory
-
github.com
/nothings/stb/blob/5736b15f7ea0ffb08dd38af21067c314d6a3aae9/stb_vorbis.c#L3660-L3666
third-party-advisory
-
github.com
/nothings/stb/blob/5736b15f7ea0ffb08dd38af21067c314d6a3aae9/stb_vorbis.c#L4208-L4215
third-party-advisory
Sources
- CVE List CVE-2023-45680
- NVD CVE-2023-45680
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.