USN-4971-1: libwebp vulnerabilities

Releases

• Ubuntu 21.04
• Ubuntu 20.10
• Ubuntu 20.04 LTS
• Ubuntu 18.04 ESM

Packages

• libwebp - Lossy compression of digital photographic images.

Details

It was discovered that libwebp incorrectly handled certain malformed
images. If a user or automated system were tricked into opening a specially
crafted image file, a remote attacker could use this issue to cause libwebp
to crash, resulting in a denial of service, or possibly execute arbitrary
code.

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 21.04

• libwebp6 - 0.6.1-2ubuntu0.21.04.1
• libwebpmux3 - 0.6.1-2ubuntu0.21.04.1
• libwebpdemux2 - 0.6.1-2ubuntu0.21.04.1

Ubuntu 20.10

• libwebp6 - 0.6.1-2ubuntu0.20.10.1
• libwebpmux3 - 0.6.1-2ubuntu0.20.10.1
• libwebpdemux2 - 0.6.1-2ubuntu0.20.10.1

Ubuntu 20.04

• libwebp6 - 0.6.1-2ubuntu0.20.04.1
• libwebpmux3 - 0.6.1-2ubuntu0.20.04.1
• libwebpdemux2 - 0.6.1-2ubuntu0.20.04.1

Ubuntu 18.04

• libwebp6 - 0.6.1-2ubuntu0.18.04.1
• libwebpmux3 - 0.6.1-2ubuntu0.18.04.1
• libwebpdemux2 - 0.6.1-2ubuntu0.18.04.1

In general, a standard system update will make all the necessary changes.

References

• CVE-2020-36331
• CVE-2018-25010
• CVE-2018-25011
• CVE-2020-36330
• CVE-2020-36329
• CVE-2018-25013
• CVE-2018-25009
• CVE-2020-36332
• CVE-2020-36328
• CVE-2018-25014
• CVE-2018-25012

Related notices

• USN-4971-2: libwebpdemux1, webp, libwebpmux1, libwebp-dev, libwebp, libwebp5