==========================================================================
Ubuntu Security Notice USN-6369-2
September 28, 2023

libwebp vulnerability
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 18.04 LTS (Available with Ubuntu Pro)

Summary:

libwebp could be made to crash or run programs if it opened a specially
crafted file.

Software Description:
- libwebp: Lossy compression of digital photographic images.

Details:

USN-6369-1 fixed a vulnerability in libwebp. This update provides the
corresponding update for Ubuntu 18.04 LTS.

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 18.04 LTS (Available with Ubuntu Pro):
  libwebp6                        0.6.1-2ubuntu0.18.04.2+esm1
  libwebpdemux2                   0.6.1-2ubuntu0.18.04.2+esm1
  libwebpmux3                     0.6.1-2ubuntu0.18.04.2+esm1

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

References:
  https://ubuntu.com/security/notices/USN-6369-2
  https://ubuntu.com/security/notices/USN-6369-1
  CVE-2023-4863

Ubuntu 6369-2: libwebp vulnerability

September 28, 2023
libwebp could be made to crash or run programs if it opened a specially crafted file.

Summary

A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 18.04 LTS (Available with Ubuntu Pro) Summary: libwebp could be made to crash or run programs if it opened a specially crafted file. Software Description: - libwebp: Lossy compression of digital photographic images. Details: USN-6369-1 fixed a vulnerability in libwebp. This update provides the corresponding update for Ubuntu 18.04 LTS. 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 18.04 LTS (Available with Ubuntu Pro): libwebp6 0.6.1-2ubuntu0.18.04.2+esm1 libwebpdemux2 0.6.1-2ubuntu0.18.04.2+esm1 libwebpmux3 0.6.1-2ubuntu0.18.04.2+esm1 In general, a standard system update will make all the necessary changes.

References

https://ubuntu.com/security/notices/USN-6369-2

https://ubuntu.com/security/notices/USN-6369-1

CVE-2023-4863

Severity
Ubuntu Security Notice USN-6369-2

Package Information

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