CVE-2020-10730

A NULL pointer dereference, or possible use-after-free flaw was found in Samba AD LDAP server in versions before 4.10.17, before 4.11.11 and before 4.12.4. Although some versions of Samba shipped with Red Hat Enterprise Linux do not support Samba in AD mode, the affected code is shipped with the libldb package. This flaw allows an authenticated user to possibly trigger a use-after-free or NULL pointer dereference. The highest threat from this vulnerability is to system availability.

• CWE-416
• CWE-476

• http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00030.htmlMailing List, Third Party Advisory
• http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00054.htmlMailing List, Third Party Advisory
• http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00000.htmlMailing List, Third Party Advisory
• http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00002.htmlMailing List, Third Party Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=1849489%3B
• https://lists.debian.org/debian-lts-announce/2020/11/msg00041.htmlIssue Tracking, Third Party Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6YLNQ5GRXUKYRUAOFZ4DUBVN4SMTL6Q2/
• https://security.gentoo.org/glsa/202007-15Third Party Advisory
• https://www.debian.org/security/2021/dsa-4884Third Party Advisory
• https://www.samba.org/samba/security/CVE-2020-10730.htmlVendor Advisory
• http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00030.htmlMailing List, Third Party Advisory
• http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00054.htmlMailing List, Third Party Advisory
• http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00000.htmlMailing List, Third Party Advisory
• http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00002.htmlMailing List, Third Party Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=1849489%3B
• https://lists.debian.org/debian-lts-announce/2020/11/msg00041.htmlIssue Tracking, Third Party Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6YLNQ5GRXUKYRUAOFZ4DUBVN4SMTL6Q2/
• https://security.gentoo.org/glsa/202007-15Third Party Advisory
• https://www.debian.org/security/2021/dsa-4884Third Party Advisory
• https://www.samba.org/samba/security/CVE-2020-10730.htmlVendor Advisory

Published

Jul 7, 2020

Last Modified

Jun 17, 2026

Status

Modified

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