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CVE-2020-10730

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Date: July 7, 2020

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.

Language: C

Severity Score

Related Resources (18)

https://people.canonical.com/~ubuntu-security/cve/CVE-2020-10730
https://bugzilla.redhat.com/show_bug.cgi?id=1849489%3B
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00000.html
https://www.debian.org/security/2021/dsa-4884
https://bugzilla.redhat.com/show_bug.cgi?id=1849489;
https://security.alpinelinux.org/vuln/CVE-2020-10730
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00054.html
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00030.html
https://security-tracker.debian.org/tracker/CVE-2020-10730
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6YLNQ5GRXUKYRUAOFZ4DUBVN4SMTL6Q2/
https://access.redhat.com/security/cve/CVE-2020-10730
https://security.gentoo.org/glsa/202007-15
https://nvd.nist.gov/vuln/detail/CVE-2020-10730
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6YLNQ5GRXUKYRUAOFZ4DUBVN4SMTL6Q2/
http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00002.html
https://www.samba.org/samba/security/CVE-2020-10730.html
https://lists.debian.org/debian-lts-announce/2020/11/msg00041.html
https://www.mend.io/vulnerability-database/CVE-2020-10730

Severity Score

Weakness Type (CWE)

NULL Pointer Dereference

CWE-476

Use After Free

CWE-416

Top Fix

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Upgrade to version 4.10.17,4.11.11,4.12.4

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): LOW
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): LOW
Authentication (AU): SINGLE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): PARTIAL
Additional information:

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