Description
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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| nothings | stb | <= 1.22 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | libstb | No fix yet | — |
| Debian 13 | libstb | No fix yet | — |
| Debian 12 | libstb | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | libstb | No fix yet | — |
| Ubuntu 26.04 LTS | libstb | No fix yet | — |
| Ubuntu 25.10 | libstb | No fix yet | — |
| Ubuntu 24.04 LTS | libstb | No fix yet | — |
| Ubuntu 22.04 LTS | libstb | No fix yet | — |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | libstb | No fix yet | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SUSE Package Hub 15 SP6 | SDL2_sound | 2.0.4-bp156.2.3.1 | openSUSE-SU-2025:0037-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 15.6 | SDL2_sound | 2.0.4-bp156.2.3.1 | openSUSE-SU-2025:0037-1 |
Advisories 1
- openSUSE-SU-2025:0037-1 Security update for SDL2_sound SUSE / openSUSE Security Updates · Feb 4, 2026