Description
The function WavpackVerifySingleBlock in open_utils.c in libwavpack.a in WavPack through 5.1.0 allows attackers to cause a denial-of-service (out-of-bounds read and application crash) via a crafted WavPack Lossless Audio file, as demonstrated by wvunpack.
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 | 5.1.0-5 | — |
| Debian 13 | wavpack | 5.1.0-5 | — |
| Debian 12 | wavpack | 5.1.0-5 | — |
| Debian 9 | wavpack | 5.0.0-2+deb9u3 | DLA-2525-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | wavpack | 5.1.0-2ubuntu1.2 | USN-3839-1 |
| Ubuntu 16.04 LTS | wavpack | 4.75.2-2ubuntu0.2 | USN-3839-1 |
| Ubuntu 14.04 LTS | wavpack | 4.70.0-1ubuntu0.2 | USN-3839-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 8 | wavpack +1 | 5.1.0-15.el8 | RHSA-2020:1581 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 8 | wavpack +1 | 5.1.0-15.el8 | ALSA-2020:1581 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 8 | wavpack | 5.1.0-15.el8 | RLSA-2020:1581 |
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 | 5.1.0-4.3.5 | SUSE-SU-2021:0186-1, SUSE-SU-2019:0772-1 |
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 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 |
| openSUSE Leap 15.0 | wavpack | 5.1.0-lp150.3.3.1 | openSUSE-SU-2019:1145-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | wavpack | 5.1.0-r7 | — |
| Alpine v3.23 | wavpack | 5.1.0-r7 | — |
| Alpine v3.22 | wavpack | 5.1.0-r7 | — |
| Alpine v3.21 | wavpack | 5.1.0-r7 | — |
| Alpine v3.20 | wavpack | 5.1.0-r7 | — |
Show 14 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | wavpack | 5.1.0-r7 | — |
| Alpine v3.18 | wavpack | 5.1.0-r7 | — |
| Alpine v3.17 | wavpack | 5.1.0-r7 | — |
| Alpine v3.16 | wavpack | 5.1.0-r7 | — |
| Alpine v3.15 | wavpack | 5.1.0-r7 | — |
| Alpine v3.14 | wavpack | 5.1.0-r7 | — |
| Alpine v3.13 | wavpack | 5.1.0-r7 | — |
| Alpine v3.12 | wavpack | 5.1.0-r7 | — |
| Alpine v3.11 | wavpack | 5.1.0-r7 | — |
| Alpine v3.10 | wavpack | 5.1.0-r7 | — |
| Alpine v3.9 | wavpack | 5.1.0-r7 | — |
| Alpine v3.8 | wavpack | 5.1.0-r7 | — |
| Alpine v3.7 | wavpack | 5.1.0-r3 | — |
| Alpine v3.6 | wavpack | 5.1.0-r3 | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 8 | wavpack +1 | 5.1.0-15.el8 | ELSA-2020-1581 |
Advisories 12
- ALSA-2020:1581 Low: wavpack security update AlmaLinux Security Advisories · Oct 29, 2026
- RHSA-2020:1581 Red Hat Security Advisory: wavpack security update Red Hat Security Advisories (RHSA) · Jun 27, 2026
- USN-3839-1 wavpack vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- DLA-2525-1 wavpack - security update Debian Security (DSA / DLA) · Mar 9, 2026
- RLSA-2020:1581 Low: wavpack security update Rocky Linux Security Advisories · Feb 4, 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-2021:0186-1 Security update for wavpack SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2019:1145-1 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-2019:0772-1 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
- ELSA-2020-1581 Low: wavpack security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · May 5, 2020
References
- https://github.com/dbry/WavPack/issues/54
- https://github.com/dbry/WavPack/commit/bba5389dc598a92bdf2b297c3ea34620b6679b5b
- USN-3839-1 vendor-advisory
- openSUSE-SU-2019:1145 vendor-advisory
- FEDORA-2019-1315f2dc3a vendor-advisory
- FEDORA-2019-88f264563f vendor-advisory
- FEDORA-2019-235c682f35 vendor-advisory
- 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
- GLSA-202007-19 vendor-advisory
- [debian-lts-announce] 20210115 [SECURITY] [DLA 2525-1] wavpack security update mailing-list