CVE-2020-10730

CWE-416 — Use After FreeCWE-476 — NULL Pointer Dereference10 documents8 sources
Severity
6.5MEDIUM
EPSS
3.1%
top 13.12%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
5
Samba SambaDebian Debian LinuxFedoraproject Fedora+2 more
Timeline
PublishedJul 7
Latest updateMay 24

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.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitability: 2.8 | Impact: 3.6

Affected Packages7 packages

▶NVDsamba/samba4.5.0 — 4.10.17+2
▶Debiansamba< 2:4.12.5+dfsg-1+3
▶Ubuntusamba< 2:4.3.11+dfsg-0ubuntu0.16.04.28+3
▶CVEListV5sambaAll Samba versions before 4.10.17, before 4.11.11 and before 4.12.4
▶Debianldb< 2:2.1.4-1

Also affects: Debian Linux 10.0, 9.0, Fedora 31

🔴Vulnerability Details

4
GHSA
GHSA-c9v6-jmq4-q762: A NULL pointer dereference, or possible use-after-free flaw was found in Samba AD LDAP server in versions before 4↗2022-05-24
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OSV
CVE-2020-10730: A NULL pointer dereference, or possible use-after-free flaw was found in Samba AD LDAP server in versions before 4↗2020-07-07
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CVEList
CVE-2020-10730: A NULL pointer dereference, or possible use-after-free flaw was found in Samba AD LDAP server in versions before 4↗2020-07-07
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OSV
samba vulnerabilities↗2020-07-02
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📋Vendor Advisories

3
Red Hat
samba: NULL pointer de-reference and use-after-free in Samba AD DC LDAP Server with ASQ, VLV and paged_results↗2020-07-02
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Ubuntu
Samba vulnerabilities↗2020-07-02
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Debian
CVE-2020-10730: ldb - A NULL pointer dereference, or possible use-after-free flaw was found in Samba A...↗2020
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💬Community

2
Bugzilla
CVE-2020-10730 libldb: samba: NULL pointer de-reference and use-after-free in Samba AD DC LDAP Server with ASQ, VLV and paged_results [fedora-all]↗2020-07-02
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Bugzilla
CVE-2020-10730 samba: NULL pointer de-reference and use-after-free in Samba AD DC LDAP Server with ASQ, VLV and paged_results↗2020-06-22
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