Description
libsndfile 1.2.2 contains a misaligned memory access issue in psf_binheader_readf() while parsing WAV fmt chunks. A specially crafted WAV file can cause the function to cast an unaligned destination address to unsigned int * and perform a 4-byte store. This results in undefined behavior leading to denial of service.
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 | libsndfile | No fix yet | — |
| Debian 13 | libsndfile | No fix yet | — |
| Debian 12 | libsndfile | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | libsndfile | No fix yet | — |
| Ubuntu 26.04 LTS | libsndfile | No fix yet | — |
| Ubuntu 24.04 LTS | libsndfile | No fix yet | — |
| Ubuntu 22.04 LTS | libsndfile | No fix yet | — |
| Ubuntu 20.04 LTS | libsndfile | No fix yet | — |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 18.04 LTS | libsndfile | No fix yet | — |
| Ubuntu Pro 16.04 LTS | libsndfile | No fix yet | — |
| Ubuntu Pro 14.04 LTS | libsndfile | No fix yet | — |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | libsndfile | 1.2.2-6.1 | openSUSE-SU-2026:12142-1 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | libsndfile | 1.2.2-7 | — |
Advisories 2
- WID-SEC-2026-3580 libsndfile: Mehrere Schwachstellen ermöglichen Denial of Service BSI CERT-Bund (WID) · Nov 8, 2026
- openSUSE-SU-2026:12142-1 libsndfile-devel-1.2.2-6.1 on GA media SUSE / openSUSE Security Updates · Oct 16, 2026