Description
WavPack 5.3.0 has an out-of-bounds write in WavpackPackSamples in pack_utils.c because of an integer overflow in a malloc argument. NOTE: some third-parties claim that there are later "unofficial" releases through 5.3.2, which are also affected.
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 | wavpack | 5.3.0-2 | — |
| Debian 13 | wavpack | 5.3.0-2 | — |
| Debian 12 | wavpack | 5.3.0-2 | — |
| Debian 9 | wavpack | 5.0.0-2+deb9u3 | DLA-2525-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | wavpack | 5.2.0-1ubuntu0.1 | USN-4682-1 |
| Ubuntu 18.04 LTS | wavpack | 5.1.0-2ubuntu1.5 | USN-4682-1 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP2 | wavpack | 5.4.0-4.9.1 | SUSE-SU-2021:0186-1 |
| SLES 15 SP1 | wavpack | 5.4.0-4.9.1 | SUSE-SU-2021:0186-1 |
| SLES 15 | wavpack | 5.4.0-4.9.1 | SUSE-SU-2021:0186-1 |
| SLES 12 SP5 | wavpack | 4.60.99-5.9.1 | SUSE-SU-2021:0929-1 |
| SLES 12 SP4 | wavpack | 4.60.99-5.9.1 | SUSE-SU-2021:0929-1 |
Show 22 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP3 | wavpack | 4.60.99-5.9.1 | SUSE-SU-2021:0929-1 |
| SLES 12 SP2 | wavpack | 4.60.99-5.9.1 | SUSE-SU-2021:0929-1 |
| SLES 11 SP4 | wavpack | 4.50.1-1.33.1 | SUSE-SU-2021:14669-1 |
| SLES for SAP 15 SP1 | wavpack | 5.4.0-4.9.1 | SUSE-SU-2021:0186-1 |
| SLES for SAP 15 | wavpack | 5.4.0-4.9.1 | SUSE-SU-2021:0186-1 |
| SLES for SAP 12 SP5 | wavpack | 4.60.99-5.9.1 | SUSE-SU-2021:0929-1 |
| SLES for SAP 12 SP4 | wavpack | 4.60.99-5.9.1 | SUSE-SU-2021:0929-1 |
| SLES for SAP 12 SP3 | wavpack | 4.60.99-5.9.1 | SUSE-SU-2021:0929-1 |
| SLES for SAP 12 SP2 | wavpack | 4.60.99-5.9.1 | SUSE-SU-2021:0929-1 |
| SLE HPC 15 SP1 | wavpack | 5.4.0-4.9.1 | SUSE-SU-2021:0186-1 |
| SLE HPC 15 | wavpack | 5.4.0-4.9.1 | SUSE-SU-2021:0186-1 |
| SUSE OpenStack Cloud Crowbar 9 | wavpack | 4.60.99-5.9.1 | SUSE-SU-2021:0929-1 |
| SUSE OpenStack Cloud Crowbar 8 | wavpack | 4.60.99-5.9.1 | SUSE-SU-2021:0929-1 |
| SUSE OpenStack Cloud 9 | wavpack | 4.60.99-5.9.1 | SUSE-SU-2021:0929-1 |
| SUSE OpenStack Cloud 8 | wavpack | 4.60.99-5.9.1 | SUSE-SU-2021:0929-1 |
| SUSE OpenStack Cloud 7 | wavpack | 4.60.99-5.9.1 | SUSE-SU-2021:0929-1 |
| SUSE Manager Server 4.0 | wavpack | 5.4.0-4.9.1 | SUSE-SU-2021:0186-1 |
| SUSE Manager Retail Branch Server 4.0 | wavpack | 5.4.0-4.9.1 | SUSE-SU-2021:0186-1 |
| SUSE Manager Proxy 4.0 | wavpack | 5.4.0-4.9.1 | SUSE-SU-2021:0186-1 |
| SUSE Linux Enterprise Point of Sale 11 SP3 | wavpack | 4.50.1-1.33.1 | SUSE-SU-2021:14669-1 |
| SUSE HPE Helion OpenStack 8 | wavpack | 4.60.99-5.9.1 | SUSE-SU-2021:0929-1 |
| SUSE Enterprise Storage 6 | wavpack | 5.4.0-4.9.1 | SUSE-SU-2021:0186-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | wavpack | 5.4.0-1.6 | openSUSE-SU-2024:11505-1 |
| openSUSE Leap 15.2 | wavpack | 5.4.0-lp152.7.3.1 | openSUSE-SU-2021:0153-1 |
| openSUSE Leap 15.1 | wavpack | 5.4.0-lp151.5.6.1 | openSUSE-SU-2021:0154-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | wavpack | 5.4.0-r0 | — |
| Alpine v3.23 | wavpack | 5.4.0-r0 | — |
| Alpine v3.22 | wavpack | 5.4.0-r0 | — |
| Alpine v3.21 | wavpack | 5.4.0-r0 | — |
| Alpine v3.20 | wavpack | 5.4.0-r0 | — |
Show 8 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | wavpack | 5.4.0-r0 | — |
| Alpine v3.18 | wavpack | 5.4.0-r0 | — |
| Alpine v3.17 | wavpack | 5.4.0-r0 | — |
| Alpine v3.16 | wavpack | 5.4.0-r0 | — |
| Alpine v3.15 | wavpack | 5.4.0-r0 | — |
| Alpine v3.14 | wavpack | 5.4.0-r0 | — |
| Alpine v3.13 | wavpack | 5.4.0-r0 | — |
| Alpine v3.12 | wavpack | 5.4.0-r0 | — |
Advisories 8
- USN-4682-1 wavpack vulnerability Ubuntu Security Notices (USN) · Apr 22, 2026
- DLA-2525-1 wavpack - security update Debian Security (DSA / DLA) · Mar 9, 2026
- openSUSE-SU-2024:11505-1 libwavpack1-32bit-5.4.0-1.6 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:14669-1 Security update for wavpack SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:0186-1 Security update for wavpack SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2021:0154-1 Security update for wavpack SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:0929-1 Security update for wavpack SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2021:0153-1 Security update for wavpack SUSE / openSUSE Security Updates · Feb 4, 2026
References
- https://github.com/dbry/WavPack/issues/91
- [debian-lts-announce] 20210115 [SECURITY] [DLA 2525-1] wavpack security update mailing-list
- FEDORA-2021-5c83efb61c vendor-advisory
- FEDORA-2021-de45e7bb88 vendor-advisory
- FEDORA-2021-2e2fc2eac6 vendor-advisory
- FEDORA-2021-b7826fcedf vendor-advisory