CVE-2019-3824 Denial of service in n/a

What is CVE-2019-3824?

CVE-2019-3824 is a medium-severity denial of service vulnerability in Canonical Ubuntu Linux, published on 6 Mar 2019. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A flaw was found in the way an LDAP search expression could crash the shared LDAP server process of a samba AD DC in samba before version 4.10. An authenticated user, having read permissions on the LDAP server, could use this flaw to cause denial of service.

Weakness: CWE-125

Which versions are affected by CVE-2019-3824?

It affects 3 products.

Products include Canonical Ubuntu Linux, Debian Debian Linux, Samba Samba.

How do I fix CVE-2019-3824?

Upgrade to a fixed version.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2019-3824 being exploited?

There is no known exploitation of CVE-2019-3824 in the wild and no public exploit code.

Other vulnerabilities in Canonical Ubuntu Linux

• CVE-2020-11651 SaltStack Salt Authentication Bypass Exploited Critical 9.8
• CVE-2020-7247 OpenSMTPD Remote Code Execution Exploited Critical 9.8
• CVE-2019-16928 Exim Out-of-bounds Write Exploited Critical 9.8
• CVE-2018-6789 Exim Buffer Overflow Exploited Critical 9.8
• CVE-2015-2590 Oracle Java SE and Java SE Embedded Remote Code Execution Exploited Critical 9.8

All Canonical Ubuntu Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2019-3824, DLA-1699-1, DSA-4397-1, ECHO-d32d-23e1-029d, GHSA-6r53-4gh8-g2xq, SUSE-SU-2019:0639-1 and 3 more.