==========================================================================
Ubuntu Security Notice USN-6048-1
April 28, 2023
ZenLib vulnerability
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS
- Ubuntu 16.04 ESM
- Ubuntu 14.04 ESM
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.
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:
https://ubuntu.com/security/notices/USN-6048-1
<https://ubuntu.com/security/notices/USN-6048-1>
CVE-2020-36646
Package Information:
https://launchpad.net/ubuntu/+source/libzen/0.4.37-1ubuntu0.20.04.1
<https://launchpad.net/ubuntu/+source/libzen/0.4.37-1ubuntu0.20.04.1>
https://launchpad.net/ubuntu/+source/libzen/0.4.37-1ubuntu0.18.04.1
<https://launchpad.net/ubuntu/+source/libzen/0.4.37-1ubuntu0.18.04.1>
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