Ubuntu 5355-2: zlib vulnerability | LinuxSecurity.com
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Ubuntu Security Notice USN-5355-2
March 30, 2022

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

- Ubuntu 16.04 ESM
- Ubuntu 14.04 ESM

Summary:

zlib could be made to crash or run programs if it received specially
crafted input.

Software Description:
- zlib: compression library - 32 bit runtime

Details:

USN-5355-1 fixed a vulnerability in zlib. This update provides
the corresponding update for Ubuntu 14.04 ESM and Ubuntu 16.04 ESM.

Original advisory details:

 Danilo Ramos discovered that zlib incorrectly handled memory when
 performing certain deflating operations. An attacker could use this issue
 to cause zlib 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 ESM:
  lib32z1                         1:1.2.8.dfsg-2ubuntu4.3+esm1
  lib64z1                         1:1.2.8.dfsg-2ubuntu4.3+esm1
  libx32z1                        1:1.2.8.dfsg-2ubuntu4.3+esm1
  zlib1g                          1:1.2.8.dfsg-2ubuntu4.3+esm1

Ubuntu 14.04 ESM:
  lib32z1                         1:1.2.8.dfsg-1ubuntu1.1+esm1
  lib64z1                         1:1.2.8.dfsg-1ubuntu1.1+esm1
  libx32z1                        1:1.2.8.dfsg-1ubuntu1.1+esm1
  zlib1g                          1:1.2.8.dfsg-1ubuntu1.1+esm1

After a standard system update you need to reboot your computer to make
all the necessary changes.

References:
  https://ubuntu.com/security/notices/USN-5355-2
  https://ubuntu.com/security/notices/USN-5355-1
  CVE-2018-25032

Ubuntu 5355-2: zlib vulnerability

March 30, 2022

Summary

A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 16.04 ESM - Ubuntu 14.04 ESM Summary: zlib could be made to crash or run programs if it received specially crafted input. Software Description: - zlib: compression library - 32 bit runtime Details: USN-5355-1 fixed a vulnerability in zlib. This update provides the corresponding update for Ubuntu 14.04 ESM and Ubuntu 16.04 ESM. Original advisory details: Danilo Ramos discovered that zlib incorrectly handled memory when performing certain deflating operations. An attacker could use this issue to cause zlib 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 ESM: lib32z1 1:1.2.8.dfsg-2ubuntu4.3+esm1 lib64z1 1:1.2.8.dfsg-2ubuntu4.3+esm1 libx32z1 1:1.2.8.dfsg-2ubuntu4.3+esm1 zlib1g 1:1.2.8.dfsg-2ubuntu4.3+esm1 Ubuntu 14.04 ESM: lib32z1 1:1.2.8.dfsg-1ubuntu1.1+esm1 lib64z1 1:1.2.8.dfsg-1ubuntu1.1+esm1 libx32z1 1:1.2.8.dfsg-1ubuntu1.1+esm1 zlib1g 1:1.2.8.dfsg-1ubuntu1.1+esm1 After a standard system update you need to reboot your computer to make all the necessary changes.

References

https://ubuntu.com/security/notices/USN-5355-2

https://ubuntu.com/security/notices/USN-5355-1

CVE-2018-25032

Severity
Ubuntu Security Notice USN-5355-2

Package Information

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