Ubuntu 22.04 LTS: USN-5840-1 Critical: lrzip DoS and Memory Corruption

ubuntu

February 2, 2023

Several security issues were fixed in Long Range ZIP.

Summary

Several security issues were fixed in Long Range ZIP.

Software Description:

- lrzip: compression program with a very high compression ratio

Details:

It was discovered that Long Range ZIP incorrectly handled pointers. If

a user or an automated system were tricked into opening a certain

specially crafted ZIP file, an attacker could possibly use this issue

to cause a denial of service. This issue only affected Ubuntu 14.04 ESM,

Ubuntu 16.04 ESM, Ubuntu 18.04 LTS, and Ubuntu 20.04 LTS. (CVE-2020-25467)

It was discovered that Long Range ZIP incorrectly handled pointers. If

a user or an automated system were tricked into opening a certain

specially crafted ZIP file, an attacker could possibly use this issue

to cause a denial of service. This issue only affected Ubuntu 18.04 LTS

and Ubuntu 20.04 LTS. (CVE-2021-27345, CVE-2021-27347)

It was discovered that Long Range ZIP incorrectly handled pointers. If

a user or an automated system were tricked into opening a cer...

Read the Full Advisory

Topics Covered

security advisory denial of service critical memory corruption Ubuntu lrzip

Update Instructions

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

Ubuntu 22.10:
   lrzip                           0.651-2ubuntu0.22.10.1

Ubuntu 22.04 LTS:
   lrzip                           0.651-2ubuntu0.22.04.1

Ubuntu 20.04 LTS:
   lrzip 0.631+git180528-1+deb10u1build0.20.04.1

Ubuntu 18.04 LTS:
   lrzip                           0.631-1+deb9u3build0.18.04.1

Ubuntu 16.04 ESM:
   lrzip                           0.621-1ubuntu0.1~esm2

Ubuntu 14.04 ESM:
   lrzip                           0.616-1ubuntu0.1~esm2

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