USN-4971-2: libwebp vulnerabilities

Releases

• Ubuntu 16.04 ESM
• Ubuntu 14.04 ESM

Packages

• libwebp - Lossy compression of digital photographic images.

Details

USN-4971-1 fixed several vulnerabilities in libwebp. This update provides
the corresponding update for Ubuntu 14.04 ESM and Ubuntu 16.04 ESM.

Original advisory 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 16.04

• libwebp5 - 0.4.4-1ubuntu0.1~esm1
  Available with Ubuntu Pro
• libwebpdemux1 - 0.4.4-1ubuntu0.1~esm1
  Available with Ubuntu Pro
• libwebpmux1 - 0.4.4-1ubuntu0.1~esm1
  Available with Ubuntu Pro

Ubuntu 14.04

• libwebp5 - 0.4.0-4ubuntu0.1~esm1
  Available with Ubuntu Pro
• libwebpdemux1 - 0.4.0-4ubuntu0.1~esm1
  Available with Ubuntu Pro
• libwebpmux1 - 0.4.0-4ubuntu0.1~esm1
  Available with Ubuntu Pro

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

References

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

Related notices

• USN-4971-1: webp, libwebp, libwebp6, libwebpdemux2, libwebpmux3, libwebp-dev