CVE-2020-10730
published 2020-07-07CVE-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…
PriorityP336medium6.5CVSS 3.1
AVNACLPRLUINSUCNINAH
EPSS
2.44%
82.5th percentile
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
20 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | debian_linux | — | — |
| debian | debian_linux | — | — |
| debian | ldb | < ldb 2:2.1.4-1 (bullseye) | ldb 2:2.1.4-1 (bullseye) |
| debian | samba | < ldb 2:2.1.4-1 (bullseye) | ldb 2:2.1.4-1 (bullseye) |
| fedoraproject | fedora | — | — |
| opensuse | leap | — | — |
| opensuse | leap | — | — |
| redhat | storage | — | — |
| samba | samba | — | — |
| samba | samba | >= 0 < 2:4.12.5+dfsg-1 | 2:4.12.5+dfsg-1 |
| samba | samba | >= 0 < 2:4.12.5+dfsg-1 | 2:4.12.5+dfsg-1 |
| samba | samba | >= 0 < 2:4.12.5+dfsg-1 | 2:4.12.5+dfsg-1 |
| samba | samba | >= 0 < 2:4.12.5+dfsg-1 | 2:4.12.5+dfsg-1 |
| samba | samba | >= 0 < 2:4.3.11+dfsg-0ubuntu0.16.04.28 | 2:4.3.11+dfsg-0ubuntu0.16.04.28 |
| samba | samba | >= 0 < 2:4.7.6+dfsg~ubuntu-0ubuntu2.17 | 2:4.7.6+dfsg~ubuntu-0ubuntu2.17 |
| samba | samba | >= 0 < 2:4.11.6+dfsg-0ubuntu1.3 | 2:4.11.6+dfsg-0ubuntu1.3 |
| samba | samba | >= 0 < 2:4.3.11+dfsg-0ubuntu0.14.04.20+esm7 | 2:4.3.11+dfsg-0ubuntu0.14.04.20+esm7 |
| samba | samba | >= 4.11.0 < 4.11.11 | 4.11.11 |
| samba | samba | >= 4.12.0 < 4.12.4 | 4.12.4 |
| samba | samba | >= 4.5.0 < 4.10.17 | 4.10.17 |
CVSS provenance
nvdv3.16.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
nvdv2.04.0MEDIUMAV:N/AC:L/Au:S/C:N/I:N/A:P
osv6.5MEDIUM
vendor_debian6.5MEDIUM
vendor_redhat6.5MEDIUM
vendor_ubuntu6.5MEDIUM
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Red Hat
samba: NULL pointer de-reference and use-after-free in Samba AD DC LDAP Server with ASQ, VLV and paged_results
vendor_redhat·2020-07-02·CVSS 6.5
CVE-2020-10730 [MEDIUM] CWE-416 samba: NULL pointer de-reference and use-after-free in Samba AD DC LDAP Server with ASQ, VLV and paged_results
samba: NULL pointer de-reference and use-after-free in Samba AD DC LDAP Server with ASQ, VLV and paged_results
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.
A NULL pointer dereference, or possible use-after-free flaw was found in the Samba AD LDAP server. Although some versions of Samba shipped with Red Hat Enterprise Linux do not support Samba in AD mod
Ubuntu
Samba vulnerabilities
vendor_ubuntu·2020-07-02·CVSS 6.5
CVE-2020-10730 [MEDIUM] Samba vulnerabilities
Title: Samba vulnerabilities
Summary: Several security issues were fixed in Samba.
Andrew Bartlett discovered that Samba incorrectly handled certain LDAP queries.
A remote attacker could use this issue to cause Samba to crash, resulting
in a denial of service, or possibly execute arbitrary code. This issue only
affected Ubuntu 18.04 LTS, Ubuntu 19.10 and Ubuntu 20.04 LTS. (CVE-2020-10730)
Douglas Bagnall discovered that Samba incorrectly handled certain queries.
A remote attacker could possibly use this issue to cause a denial of service.
(CVE-2020-10745)
Andrei Popa discovered that Samba incorrectly handled certain LDAP queries.
A remote attacker could use this issue to cause Samba to crash, resulting
in a denial of service, or possibly execute arbitrary code. This issue only
affected
Debian
CVE-2020-10730: ldb - A NULL pointer dereference, or possible use-after-free flaw was found in Samba A...
vendor_debian·2020·CVSS 6.5
CVE-2020-10730 [MEDIUM] CVE-2020-10730: ldb - A NULL pointer dereference, or possible use-after-free flaw was found in Samba A...
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.
Scope: local
bullseye: resolved (fixed in 2:2.1.4-1)
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
ghsa_unreviewed·2022-05-24
CVE-2020-10730 [MEDIUM] CWE-476 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
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.
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
osv·2020-07-07·CVSS 6.5
CVE-2020-10730 [MEDIUM] CVE-2020-10730: A NULL pointer dereference, or possible use-after-free flaw was found in Samba AD LDAP server in versions before 4
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.
OSV
samba vulnerabilities
osv·2020-07-02·CVSS 6.5
CVE-2020-10730 [MEDIUM] samba vulnerabilities
samba vulnerabilities
Andrew Bartlett discovered that Samba incorrectly handled certain LDAP queries.
A remote attacker could use this issue to cause Samba to crash, resulting
in a denial of service, or possibly execute arbitrary code. This issue only
affected Ubuntu 18.04 LTS, Ubuntu 19.10 and Ubuntu 20.04 LTS. (CVE-2020-10730)
Douglas Bagnall discovered that Samba incorrectly handled certain queries.
A remote attacker could possibly use this issue to cause a denial of service.
(CVE-2020-10745)
Andrei Popa discovered that Samba incorrectly handled certain LDAP queries.
A remote attacker could use this issue to cause Samba to crash, resulting
in a denial of service, or possibly execute arbitrary code. This issue only
affected Ubuntu 18.04 LTS, Ubuntu 19.10 and Ubuntu 20.04 LTS.
(CVE-202
No detection rules found.
No public exploits indexed.
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]
bugzilla·2020-07-02·CVSS 6.5
CVE-2020-10730 [MEDIUM] 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]
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]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of fedora-all.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg
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
bugzilla·2020-06-22·CVSS 5.3
CVE-2020-10730 [MEDIUM] CVE-2020-10730 samba: NULL pointer de-reference and use-after-free in Samba AD DC LDAP Server with ASQ, VLV and paged_results
CVE-2020-10730 samba: NULL pointer de-reference and use-after-free in Samba AD DC LDAP Server with ASQ, VLV and paged_results
As per upstream advisory:
Samba has, since Samba 4.5, supported the VLV Active Directory LDAP feature, to allow clients to obtain 'virtual list views' of search results against a Samba AD DC using an LDAP control.
The combination of this control, and the ASQ control combines to allow an authenticated user to trigger a NULL-pointer de-reference. It is also possible to trigger a use-after-free, both as the code is very similar to that addressed by CVE-2020-10700 and due to the way errors are handled in the dsdb_paged_results module since Samba 4.10.
Discussion:
Acknowledgments:
Name: the Samba project
Upstream: Andrew Bartlett
---
Statement:
The version of sa
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00030.htmlhttp://lists.opensuse.org/opensuse-security-announce/2020-07/msg00054.htmlhttp://lists.opensuse.org/opensuse-security-announce/2020-08/msg00000.htmlhttp://lists.opensuse.org/opensuse-security-announce/2020-09/msg00002.htmlhttps://bugzilla.redhat.com/show_bug.cgi?id=1849489%3Bhttps://lists.debian.org/debian-lts-announce/2020/11/msg00041.htmlhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6YLNQ5GRXUKYRUAOFZ4DUBVN4SMTL6Q2/https://security.gentoo.org/glsa/202007-15https://www.debian.org/security/2021/dsa-4884https://www.samba.org/samba/security/CVE-2020-10730.htmlhttp://lists.opensuse.org/opensuse-security-announce/2020-07/msg00030.htmlhttp://lists.opensuse.org/opensuse-security-announce/2020-07/msg00054.htmlhttp://lists.opensuse.org/opensuse-security-announce/2020-08/msg00000.htmlhttp://lists.opensuse.org/opensuse-security-announce/2020-09/msg00002.htmlhttps://bugzilla.redhat.com/show_bug.cgi?id=1849489%3Bhttps://lists.debian.org/debian-lts-announce/2020/11/msg00041.htmlhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6YLNQ5GRXUKYRUAOFZ4DUBVN4SMTL6Q2/https://security.gentoo.org/glsa/202007-15https://www.debian.org/security/2021/dsa-4884https://www.samba.org/samba/security/CVE-2020-10730.html
2020-07-07
Published