Description
A use of uninitialized value was found in libwebp in versions before 1.0.1 in ReadSymbol().
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 |
| Debian 9 | libwebp | 0.5.2-1+deb9u1 | DLA-2677-1 |
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 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 16.04 LTS | libwebp | 0.4.4-1ubuntu0.1~esm1 | USN-4971-2 |
| Ubuntu Pro 14.04 LTS | libwebp | 0.4.0-4ubuntu0.1~esm1 | USN-4971-2 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 8 | libwebp +1 | 1.0.0-5.el8 | RHSA-2021:4231 |
| RHEL 7 | qt5-qtimageformats +1 | 5.9.7-2.el7_9 | RHSA-2021:2328 |
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 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2 | libwebp +3 | 0.3.0-10.amzn2.0.2 | ALAS2-2023-2048 |
| Amazon Linux 2 | qt5-qtimageformats +1 | 5.9.2-1.amzn2.0.2 | ALAS2-2021-1679 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 8 | libwebp +1 | 1.0.0-5.el8 | ELSA-2021-4231 |
| Oracle Linux 7 | qt5-qtimageformats +1 | 5.9.7-2.el7_9 | ELSA-2021-2328 |
Advisories 13
- ALSA-2021:4231 Moderate: libwebp security update AlmaLinux Security Advisories · Oct 29, 2026
- USN-4971-2 libwebp vulnerabilities Ubuntu Security Notices (USN) · Jun 29, 2026
- RHSA-2021:2328 Red Hat Security Advisory: qt5-qtimageformats security update Red Hat Security Advisories (RHSA) · Jun 26, 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
- DLA-2677-1 libwebp - security update Debian Security (DSA / DLA) · Mar 9, 2026
- RLSA-2021:4231 Moderate: libwebp security update Rocky Linux Security Advisories · Feb 5, 2026
- ALAS2-2023-2048 Moderate: libwebp security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Aug 3, 2023
- 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
- ALAS2-2021-1679 Important: qt5-qtimageformats security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Jul 1, 2021
- ELSA-2021-2328 Important: qt5-qtimageformats security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Jun 9, 2021