Description
An issue was discovered in libsndfile 1.0.28. There is a buffer over-read in the function i2ulaw_array in ulaw.c that will lead to a 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 | 1.0.28-5 | — |
| Debian 13 | libsndfile | 1.0.28-5 | — |
| Debian 12 | libsndfile | 1.0.28-5 | — |
| Debian 9 | libsndfile | 1.0.27-3+deb9u1 | DLA-2418-1 |
| Debian 8 | libsndfile | 1.0.25-9.1+deb8u2 | DLA-1618-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | libsndfile | 1.0.28-4ubuntu0.18.04.1 | USN-4013-1 |
| Ubuntu 16.04 LTS | libsndfile | 1.0.25-10ubuntu0.16.04.2 | USN-4704-1, USN-4013-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 14.04 LTS | libsndfile | 1.0.25-7ubuntu2.2+esm1 | USN-4704-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | libsndfile | 1.0.28-r6 | — |
| Alpine v3.23 | libsndfile | 1.0.28-r6 | — |
| Alpine v3.22 | libsndfile | 1.0.28-r6 | — |
| Alpine v3.21 | libsndfile | 1.0.28-r6 | — |
| Alpine v3.20 | libsndfile | 1.0.28-r6 | — |
Show 15 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | libsndfile | 1.0.28-r6 | — |
| Alpine v3.18 | libsndfile | 1.0.28-r6 | — |
| Alpine v3.17 | libsndfile | 1.0.28-r6 | — |
| Alpine v3.16 | libsndfile | 1.0.28-r6 | — |
| Alpine v3.15 | libsndfile | 1.0.28-r6 | — |
| Alpine v3.14 | libsndfile | 1.0.28-r6 | — |
| Alpine v3.13 | libsndfile | 1.0.28-r6 | — |
| Alpine v3.12 | libsndfile | 1.0.28-r6 | — |
| Alpine v3.11 | libsndfile | 1.0.28-r6 | — |
| Alpine v3.10 | libsndfile | 1.0.28-r6 | — |
| Alpine v3.9 | libsndfile | 1.0.28-r6 | — |
| Alpine v3.8 | libsndfile | 1.0.28-r5 | — |
| Alpine v3.7 | libsndfile | 1.0.28-r4 | — |
| Alpine v3.6 | libsndfile | 1.0.28-r4 | — |
| Alpine v3.5 | libsndfile | 1.0.28-r4 | — |
Advisories 4
- USN-4704-1 libsndfile vulnerabilities Ubuntu Security Notices (USN) · Jun 29, 2026
- USN-4013-1 libsndfile vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- DLA-2418-1 libsndfile - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-1618-1 libsndfile - security update Debian Security (DSA / DLA) · Mar 9, 2026