Ubuntu Security Notice USN-4744-1 ≈ Packet Storm – Digitalmunition




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Published on February 22nd, 2021 📆 | 7538 Views ⚑

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Ubuntu Security Notice USN-4744-1 ≈ Packet Storm

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Ubuntu Security Notice USN-4744-1
February 22, 2021

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

– Ubuntu 20.10
– Ubuntu 20.04 LTS
– Ubuntu 18.04 LTS
– Ubuntu 16.04 LTS

Summary:

OpenLDAP could be made to crash if it received specially crafted network
traffic.

Software Description:
– openldap: Lightweight Directory Access Protocol

Details:

Pasi Saarinen discovered that OpenLDAP incorrectly handled certain short
timestamps. A remote attacker could possibly use this issue to cause
OpenLDAP to crash, resulting in a denial of service.

Update instructions:

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

Ubuntu 20.10:
slapd 2.4.53+dfsg-1ubuntu1.4

Ubuntu 20.04 LTS:
slapd 2.4.49+dfsg-2ubuntu1.7

Ubuntu 18.04 LTS:
slapd 2.4.45+dfsg-1ubuntu1.10

Ubuntu 16.04 LTS:
slapd 2.4.42+dfsg-2ubuntu3.13

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

References:
https://usn.ubuntu.com/4744-1
CVE-2021-27212

Package Information:
https://launchpad.net/ubuntu/+source/openldap/2.4.53+dfsg-1ubuntu1.4
https://launchpad.net/ubuntu/+source/openldap/2.4.49+dfsg-2ubuntu1.7
https://launchpad.net/ubuntu/+source/openldap/2.4.45+dfsg-1ubuntu1.10
https://launchpad.net/ubuntu/+source/openldap/2.4.42+dfsg-2ubuntu3.13

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