QID 198308

Date Published: 2021-03-31

QID 198308: Ubuntu Security Notification for Ldb Vulnerabilities (USN-4888-1)

It was discovered that ldb, when used with Samba, incorrectly handled certain LDAP attributes.

It was discovered that ldb, when used with Samba, incorrectly handled certain DN strings.

A remote attacker could possibly use this issue to cause the LDAP server to crash, resulting in a denial of service. (CVE-2021-20277)

A remote attacker could use this issue to cause the LDAP server to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2020-27840)

  • CVSS V3 rated as Medium - 5.3 severity.
  • CVSS V2 rated as Medium - 5 severity.
    • Solution
    Refer to Ubuntu advisory USN-4888-1 for affected packages and patching details, or update with your package manager.
    Vendor References

    CVEs related to QID 198308

    CVE-2020-27840 | CVE-2021-20277 |
    Software Advisories
    Advisory ID Software Component Link
    USN-4888-1 16.04 (Xenial) on src libldb1 URL Logo launchpad.net/ubuntu/+source/ldb/2:1.1.24-1ubuntu3.2
    USN-4888-1 18.04 (bionic) on src libldb1 URL Logo launchpad.net/ubuntu/+source/ldb/2:1.2.3-1ubuntu0.2
    USN-4888-1 20.04 (focal) on src libldb2 URL Logo launchpad.net/ubuntu/+source/ldb/2:2.0.10-0ubuntu0.20.04.3
    USN-4888-1 20.10 (groovy) on src libldb2 URL Logo launchpad.net/ubuntu/+source/ldb/2:2.1.4-2ubuntu0.1
    By selecting these links, you may be leaving CVEreport webspace. We have provided these links to other websites because they may have information that would be of interest to you. No inferences should be drawn on account of other sites being referenced, or not, from this page. There may be other websites that are more appropriate for your purpose. CVEreport does not necessarily endorse the views expressed, or concur with the facts presented on these sites. Further, CVEreport does not endorse any commercial products that may be mentioned on these sites. Please address comments about any linked pages to [email protected].