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Unscored USN-4888-1 2 CVEs

ldb vulnerabilities

Published Mar 24, 2021 · Updated Apr 22, 2026

Summary

Douglas Bagnall discovered that ldb, when used with Samba, incorrectly
handled certain LDAP attributes. A remote attacker could possibly use this
issue to cause the LDAP server to crash, resulting in a denial of service.
(CVE-2021-20277)

Douglas Bagnall discovered that ldb, when used with Samba, incorrectly
handled certain DN strings. 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)

Fixed packages 3

ReleasePackageFixed in
Ubuntu · 16.04 LTS 16.04:LTS ldb 2:1.1.24-1ubuntu3.2
Ubuntu · 18.04 LTS 18.04:LTS ldb 2:1.2.3-1ubuntu0.2
Ubuntu · 20.04 LTS 20.04:LTS ldb 2:2.0.10-0ubuntu0.20.04.3

Vulnerabilities 2

References

  • report
    https://ubuntu.com/security/CVE-2020-27840
  • report
    https://ubuntu.com/security/CVE-2021-20277