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Ubuntu 20.04-18.04 USN-6048-1 Severe: ZenLib Crash Risk

ubuntu
Calendar Grey May 1, 2023
Dist Ubuntu Esm H88
ZenLib may experience failures with certain data inputs on Ubuntu distributions. To mitigate this vulnerability, please ensure your system is updated.
ZenLib could be made to crash if it received specially crafted input.

Summary

ZenLib could be made to crash if it received specially crafted

input.

Software Description:

- libzen: ZenLib C++ utility library -- development files

Details:

It was discovered that ZenLib doesn't check the return value of a specific

operation before using it. An attacker could use a specially crafted input

to crash programs using the library.

Topics%20covered

Topics Covered

security advisory DoS Ubuntu update instructions severe ZenLib

Update Instructions

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

Ubuntu 20.04 LTS:
    libzen-dev                      0.4.37-1ubuntu0.20.04.1
    libzen0v5                       0.4.37-1ubuntu0.20.04.1

Ubuntu 18.04 LTS:
    libzen-dev                      0.4.37-1ubuntu0.18.04.1
    libzen0v5                       0.4.37-1ubuntu0.18.04.1

Ubuntu 16.04 ESM:
    libzen-dev                      0.4.32-1ubuntu0.16.04.1+esm1
    libzen0v5                       0.4.32-1ubuntu0.16.04.1+esm1

Ubuntu 14.04 ESM:
    libzen-dev                      0.4.29-1ubuntu0.1~esm1
    libzen0                         0.4.29-1ubuntu0.1~esm1

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

References

  CVE-2020-36646

Severity
critical
Lowest
Low
Medium
High
Critical

April 28, 2023

Topics%20covered

Topics Covered

security advisory DoS Ubuntu update instructions severe ZenLib

Package Information

https://launchpad.net/ubuntu/+source/libzen/0.4.37-1ubuntu0.20.04.1
https://launchpad.net/ubuntu/+source/libzen/0.4.37-1ubuntu0.18.04.1

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