USN-5570-1: zlib vulnerability

Published Aug 17, 2022
·
Updated

Evgeny Legerov discovered that zlib incorrectly handled memory when performing certain inflate operations. An attacker could use this issue to cause zlib to crash, resulting in a denial of service, or possibly execute arbitrary code.

Affected Software

26 affected componentsFixes available
All of the following
ubuntu/lib64z1<1:1.2.11.dfsg-0ubuntu2.2
1:1.2.11.dfsg-0ubuntu2.2
Ubuntu Ubuntu=18.04
All of the following
ubuntu/libx32z1<1:1.2.11.dfsg-0ubuntu2.2
1:1.2.11.dfsg-0ubuntu2.2
Ubuntu Ubuntu=18.04
All of the following
ubuntu/lib32z1<1:1.2.11.dfsg-0ubuntu2.2
1:1.2.11.dfsg-0ubuntu2.2
Ubuntu Ubuntu=18.04
All of the following
ubuntu/zlib1g<1:1.2.11.dfsg-0ubuntu2.2
1:1.2.11.dfsg-0ubuntu2.2
Ubuntu Ubuntu=18.04
All of the following
ubuntu/lib64z1<1:1.2.8.dfsg-2ubuntu4.3+esm2
1:1.2.8.dfsg-2ubuntu4.3+esm2
Ubuntu Ubuntu=16.04
All of the following
ubuntu/libx32z1<1:1.2.8.dfsg-2ubuntu4.3+esm2
1:1.2.8.dfsg-2ubuntu4.3+esm2
Ubuntu Ubuntu=16.04
All of the following
ubuntu/lib32z1<1:1.2.8.dfsg-2ubuntu4.3+esm2
1:1.2.8.dfsg-2ubuntu4.3+esm2
Ubuntu Ubuntu=16.04
All of the following
ubuntu/zlib1g<1:1.2.8.dfsg-2ubuntu4.3+esm2
1:1.2.8.dfsg-2ubuntu4.3+esm2
Ubuntu Ubuntu=16.04
All of the following
ubuntu/lib64z1<1:1.2.8.dfsg-1ubuntu1.1+esm2
1:1.2.8.dfsg-1ubuntu1.1+esm2
Ubuntu Ubuntu=14.04
All of the following
ubuntu/libx32z1<1:1.2.8.dfsg-1ubuntu1.1+esm2
1:1.2.8.dfsg-1ubuntu1.1+esm2
Ubuntu Ubuntu=14.04
All of the following
ubuntu/zlib-bin<1:1.2.8.dfsg-1ubuntu1.1+esm2
1:1.2.8.dfsg-1ubuntu1.1+esm2
Ubuntu Ubuntu=14.04
All of the following
ubuntu/lib32z1<1:1.2.8.dfsg-1ubuntu1.1+esm2
1:1.2.8.dfsg-1ubuntu1.1+esm2
Ubuntu Ubuntu=14.04
All of the following
ubuntu/zlib1g<1:1.2.8.dfsg-1ubuntu1.1+esm2
1:1.2.8.dfsg-1ubuntu1.1+esm2
Ubuntu Ubuntu=14.04

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade ubuntu/lib64z1 to a version that resolves this vulnerability.

    Fixed in 1:1.2.11.dfsg-0ubuntu2.2
  2. Upgrade

    Upgrade ubuntu/libx32z1 to a version that resolves this vulnerability.

    Fixed in 1:1.2.11.dfsg-0ubuntu2.2
  3. Upgrade

    Upgrade ubuntu/lib32z1 to a version that resolves this vulnerability.

    Fixed in 1:1.2.11.dfsg-0ubuntu2.2
  4. Upgrade

    Upgrade ubuntu/zlib1g to a version that resolves this vulnerability.

    Fixed in 1:1.2.11.dfsg-0ubuntu2.2
  5. Upgrade

    Upgrade ubuntu/lib64z1 to a version that resolves this vulnerability.

    Fixed in 1:1.2.8.dfsg-2ubuntu4.3+esm2
  6. Upgrade

    Upgrade ubuntu/libx32z1 to a version that resolves this vulnerability.

    Fixed in 1:1.2.8.dfsg-2ubuntu4.3+esm2
  7. Upgrade

    Upgrade ubuntu/lib32z1 to a version that resolves this vulnerability.

    Fixed in 1:1.2.8.dfsg-2ubuntu4.3+esm2
  8. Upgrade

    Upgrade ubuntu/zlib1g to a version that resolves this vulnerability.

    Fixed in 1:1.2.8.dfsg-2ubuntu4.3+esm2
  9. Upgrade

    Upgrade ubuntu/lib64z1 to a version that resolves this vulnerability.

    Fixed in 1:1.2.8.dfsg-1ubuntu1.1+esm2
  10. Upgrade

    Upgrade ubuntu/libx32z1 to a version that resolves this vulnerability.

    Fixed in 1:1.2.8.dfsg-1ubuntu1.1+esm2
  11. Upgrade

    Upgrade ubuntu/zlib-bin to a version that resolves this vulnerability.

    Fixed in 1:1.2.8.dfsg-1ubuntu1.1+esm2
  12. Upgrade

    Upgrade ubuntu/lib32z1 to a version that resolves this vulnerability.

    Fixed in 1:1.2.8.dfsg-1ubuntu1.1+esm2
  13. Upgrade

    Upgrade ubuntu/zlib1g to a version that resolves this vulnerability.

    Fixed in 1:1.2.8.dfsg-1ubuntu1.1+esm2

Event History

Aug 17, 2022
Advisory Published
via Ubuntu·12:00 AM

Child vulnerabilities

Contains the following vulnerabilities.

Frequently Asked Questions

1

What is the severity of USN-5570-1?

The severity of USN-5570-1 is high due to the potential for denial of service or arbitrary code execution.

2

How do I fix USN-5570-1?

To fix USN-5570-1, update your zlib package to version 1:1.2.11.dfsg-0ubuntu2.2 or later for Ubuntu 18.04.

3

Which systems are affected by USN-5570-1?

USN-5570-1 affects Ubuntu 18.04 systems using the zlib library and related packages.

4

What should I do if I cannot update due to dependency issues related to USN-5570-1?

If you encounter dependency issues, consider resolving those by updating related packages or consulting Ubuntu's support.”},{

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