Detections
Analytics

Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS : OpenLDAP vulnerabilities (USN-4724-1)

high Nessus Plugin ID 146302

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Synopsis

The remote Ubuntu host is missing one or more security updates.

Description

The remote Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-4724-1 advisory.

 It was discovered that OpenLDAP incorrectly handled Certificate Exact Assertion processing. A remote attacker could possibly use this issue to cause OpenLDAP to crash, resulting in a denial of service.
 (CVE-2020-36221)

 It was discovered that OpenLDAP incorrectly handled saslAuthzTo processing. A remote attacker could use this issue to cause OpenLDAP to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2020-36222, CVE-2020-36224, CVE-2020-36225, CVE-2020-36226)

 It was discovered that OpenLDAP incorrectly handled Return Filter control handling. A remote attacker could use this issue to cause OpenLDAP to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2020-36223)

 It was discovered that OpenLDAP incorrectly handled certain cancel operations. A remote attacker could possibly use this issue to cause OpenLDAP to crash, resulting in a denial of service. (CVE-2020-36227)

 It was discovered that OpenLDAP incorrectly handled Certificate List Extract Assertion processing. A remote attacker could possibly use this issue to cause OpenLDAP to crash, resulting in a denial of service. (CVE-2020-36228)

 It was discovered that OpenLDAP incorrectly handled X.509 DN parsing. A remote attacker could possibly use this issue to cause OpenLDAP to crash, resulting in a denial of service. (CVE-2020-36229, CVE-2020-36230)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Update the affected packages.

See Also

https://ubuntu.com/security/notices/USN-4724-1

Plugin Details

Severity: High

ID: 146302

File Name: ubuntu_USN-4724-1.nasl

Version: 1.7

Type: local

Agent: unix

Published: 2/8/2021

Updated: 8/28/2024

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P

CVSS Score Source: CVE-2020-36230

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:slapd-smbk5pwd, cpe:/o:canonical:ubuntu_linux:20.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:libldap-common, cpe:/o:canonical:ubuntu_linux:16.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:slapi-dev, p-cpe:/a:canonical:ubuntu_linux:slapd-contrib, cpe:/o:canonical:ubuntu_linux:18.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:ldap-utils, p-cpe:/a:canonical:ubuntu_linux:libldap2-dev, p-cpe:/a:canonical:ubuntu_linux:libldap-2.4-2, p-cpe:/a:canonical:ubuntu_linux:slapd

Required KB Items: Host/cpu, Host/Debian/dpkg-l, Host/Ubuntu, Host/Ubuntu/release

Exploit Ease: No known exploits are available

Patch Publication Date: 2/8/2021

Vulnerability Publication Date: 1/26/2021

Reference Information

CVE: CVE-2020-36221, CVE-2020-36222, CVE-2020-36223, CVE-2020-36224, CVE-2020-36225, CVE-2020-36226, CVE-2020-36227, CVE-2020-36228, CVE-2020-36229, CVE-2020-36230

IAVB: 2021-B-0014

USN: 4724-1