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Ubuntu: 5227-2 Moderate: Pillow Denial Of Service Risks

ubuntu
Calendar Grey January 17, 2022
Dist Ubuntu Esm H88
Security advisory USN-5227-2 tackles various vulnerabilities in Pillow affecting Ubuntu systems. Be sure to apply the latest updates to mitigate these risks.
Several security issues were fixed in Pillow.

Summary

Several security issues were fixed in Pillow.

Software Description:

- pillow: Python Imaging Library

Details:

USN-5227-1 fixed several vulnerabilities in Pillow. This update provides

the corresponding update for Ubuntu 14.04 ESM and Ubuntu 16.04 ESM.

Original advisory details:

It was discovered that Pillow incorrectly handled certain image files. If a

user or automated system were tricked into opening a specially-crafted

file, a remote attacker could cause Pillow to hang, resulting in a denial

of service. (CVE-2021-23437)

It was discovered that Pillow incorrectly handled certain image files. If a

user or automated system were tricked into opening a specially-crafted

file, a remote attacker could cause Pillow to crash, resulting in a denial

of service. This issue ony affected Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, and

Ubuntu 21.04. (CVE-2021-34552)

It was discovered that Pillow incorrectly handled certain image files. If a

user or automated system were tricked into op...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory denial of service ubuntu threats pillow

Update Instructions

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

Ubuntu 16.04 ESM:
  python-pil                      3.1.2-0ubuntu1.6+esm1
  python3-pil                     3.1.2-0ubuntu1.6+esm1

Ubuntu 14.04 ESM:
  python-pil                      2.3.0-1ubuntu3.4+esm3
  python3-pil                     2.3.0-1ubuntu3.4+esm3

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

References

https://ubuntu.com/security/notices/USN-5227-2

https://ubuntu.com/security/notices/USN-5227-1

CVE-2021-23437, CVE-2021-34552, CVE-2022-22815, CVE-2022-22816,

CVE-2022-22817

January 17, 2022

Topics%20covered

Topics Covered

security advisory denial of service ubuntu threats pillow

Package Information

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