Description
A flaw was found in libwebp in versions before 1.0.1. When reading a file libwebp allocates an excessive amount of memory. The highest threat from this vulnerability is to the service availability.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| — | libwebp | libwebp 1.0.1 | — |
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 | libwebp | 0.6.1-2.1 | — |
| Debian 13 | libwebp | 0.6.1-2.1 | — |
| Debian 12 | libwebp | 0.6.1-2.1 | — |
| Debian 10 | libwebp | 0.6.1-2+deb10u1 | DSA-4930-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | libwebp | 0.6.1-2ubuntu0.20.04.1 | USN-4971-1 |
| Ubuntu 18.04 LTS | libwebp | 0.6.1-2ubuntu0.18.04.1 | USN-4971-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 16.04 LTS | libwebp | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 8 | libwebp +1 | 1.0.0-5.el8 | RHSA-2021:4231 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 8 | libwebp +1 | 1.0.0-5.el8 | ALSA-2021:4231 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 8 | libwebp | 1.0.0-5.el8 | RLSA-2021:4231 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP3 | libwebp | 0.5.0-3.5.1 | SUSE-SU-2021:1860-1 |
| SLES 15 SP2 | libwebp | 0.5.0-3.5.1 | SUSE-SU-2021:1860-1 |
| SLES 15 SP1 | libwebp | 0.5.0-3.5.1 | SUSE-SU-2021:1860-1 |
| SLES 15 | libwebp | 0.5.0-3.5.1 | SUSE-SU-2021:1860-1 |
| SLES 12 SP5 | libwebp | 0.4.3-4.7.1 | SUSE-SU-2021:1830-1 |
Show 20 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP4 | libwebp | 0.4.3-4.7.1 | SUSE-SU-2021:1830-1 |
| SLES 12 SP3 | libwebp | 0.4.3-4.7.1 | SUSE-SU-2021:1830-1 |
| SLES 12 SP2 | libwebp | 0.4.3-4.7.1 | SUSE-SU-2021:1830-1 |
| SLES for SAP 15 SP1 | libwebp | 0.5.0-3.5.1 | SUSE-SU-2021:1860-1 |
| SLES for SAP 15 | libwebp | 0.5.0-3.5.1 | SUSE-SU-2021:1860-1 |
| SLES for SAP 12 SP5 | libwebp | 0.4.3-4.7.1 | SUSE-SU-2021:1830-1 |
| SLES for SAP 12 SP4 | libwebp | 0.4.3-4.7.1 | SUSE-SU-2021:1830-1 |
| SLES for SAP 12 SP3 | libwebp | 0.4.3-4.7.1 | SUSE-SU-2021:1830-1 |
| SLE HPC 15 SP1 | libwebp | 0.5.0-3.5.1 | SUSE-SU-2021:1860-1 |
| SLE HPC 15 | libwebp | 0.5.0-3.5.1 | SUSE-SU-2021:1860-1 |
| SUSE OpenStack Cloud Crowbar 9 | libwebp | 0.4.3-4.7.1 | SUSE-SU-2021:1830-1 |
| SUSE OpenStack Cloud Crowbar 8 | libwebp | 0.4.3-4.7.1 | SUSE-SU-2021:1830-1 |
| SUSE OpenStack Cloud 9 | libwebp | 0.4.3-4.7.1 | SUSE-SU-2021:1830-1 |
| SUSE OpenStack Cloud 8 | libwebp | 0.4.3-4.7.1 | SUSE-SU-2021:1830-1 |
| SUSE OpenStack Cloud 7 | libwebp | 0.4.3-4.7.1 | SUSE-SU-2021:1830-1 |
| SUSE Manager Server 4.0 | libwebp | 0.5.0-3.5.1 | SUSE-SU-2021:1860-1 |
| SUSE Manager Retail Branch Server 4.0 | libwebp | 0.5.0-3.5.1 | SUSE-SU-2021:1860-1 |
| SUSE Manager Proxy 4.0 | libwebp | 0.5.0-3.5.1 | SUSE-SU-2021:1860-1 |
| SUSE HPE Helion OpenStack 8 | libwebp | 0.4.3-4.7.1 | SUSE-SU-2021:1830-1 |
| SUSE Enterprise Storage 6 | libwebp | 0.5.0-3.5.1 | SUSE-SU-2021:1860-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 15.3 | libwebp | 0.5.0-3.5.1 | openSUSE-SU-2021:1860-1 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 8 | libwebp +1 | 1.0.0-5.el8 | ELSA-2021-4231 |
Advisories 10
- ALSA-2021:4231 Moderate: libwebp security update AlmaLinux Security Advisories · Oct 29, 2026
- RHSA-2021:4231 Red Hat Security Advisory: libwebp security update Red Hat Security Advisories (RHSA) · Apr 30, 2026
- USN-4971-1 libwebp vulnerabilities Ubuntu Security Notices (USN) · Apr 27, 2026
- DSA-4930-1 libwebp - security update Debian Security (DSA / DLA) · Mar 9, 2026
- RLSA-2021:4231 Moderate: libwebp security update Rocky Linux Security Advisories · Feb 5, 2026
- SUSE-SU-2021:1830-1 Security update for libwebp SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2021:1860-1 Security update for libwebp SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2021:1860-1 Security update for libwebp SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2023-1123 Red Hat Enterprise Linux (libwebp): Mehrere Schwachstellen BSI CERT-Bund (WID) · May 23, 2023
- ELSA-2021-4231 Moderate: libwebp security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Nov 16, 2021