CVE-2020-10730

MEDIUM
6.5
CVSS Score
Published: July 7, 2020 at 01:38 PM UTC
Updated: June 17, 2026 at 02:48 AM UTC
5 products affected across 5 vendorsDebian LinuxFedoraLeap

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Severity
MEDIUM6.5
Exploit prediction
EPSS 2%

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 4.10.174.11.0 ≤ v < 4.11.114.12.0 ≤ v < 4.12.44.5.0 ≤ v < 4.10.17
Affected range stops below 4.10.17, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.11.11, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.12.4, so it looks safe — our inference, not a vendor statement

References (10)

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-416CWE-476

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