Description
An issue was discovered in WavPack 5.1.0 and earlier for W64 input. Out-of-bounds writes can occur because ParseWave64HeaderConfig in wave64.c does not validate the sizes of unknown chunks before attempting memory allocation, related to a lack of integer-overflow protection within a bytes_to_copy calculation and subsequent malloc call, leading to insufficient memory allocation.
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 | 5.1.0-3 | — |
| Debian 13 | wavpack | 5.1.0-3 | — |
| Debian 12 | wavpack | 5.1.0-3 | — |
| Debian 9 | wavpack | 5.0.0-2+deb9u2 | DSA-4197-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | wavpack | 5.1.0-2ubuntu1.1 | USN-3637-1 |
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 |
Show 8 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| 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 |
| 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 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 Enterprise Storage 6 | wavpack | 5.4.0-4.9.1 | SUSE-SU-2021:0186-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| 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 |
Advisories 5
- USN-3637-1 wavpack vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- DSA-4197-1 wavpack - security update Debian Security (DSA / DLA) · Mar 9, 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
- openSUSE-SU-2021:0153-1 Security update for wavpack SUSE / openSUSE Security Updates · Feb 4, 2026
References
- https://github.com/dbry/WavPack/issues/33
- DSA-4197 vendor-advisory
- USN-3637-1 vendor-advisory
- https://github.com/dbry/WavPack/commit/6f8bb34c2993a48ab9afbe353e6d0cff7c8d821d
- 20191219 [slackware-security] wavpack (SSA:2019-353-01) mailing-list
- http://packetstormsecurity.com/files/155743/Slackware-Security-Advisory-wavpack-Updates.html
- FEDORA-2020-e55567b6be vendor-advisory
- FEDORA-2020-73274c9df4 vendor-advisory