Ubuntu 20.04 : Bind vulnerabilities (USN-4399-1)

medium Nessus Plugin ID 137625
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VPR Score: 3.6

Synopsis

The remote Ubuntu host is missing a security-related patch.

Description

It was discovered that Bind incorrectly handled large responses during zone transfers. A remote attacker could possibly use this issue to cause Bind to crash, resulting in a denial of service. (CVE-2020-8618) It was discovered that Bind incorrectly handled certain asterisk characters in zone files. A remote attacker could possibly use this issue to cause Bind to crash, resulting in a denial of service.
(CVE-2020-8619).

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

Update the affected bind9 package.

See Also

https://usn.ubuntu.com/4399-1/

Plugin Details

Severity: Medium

ID: 137625

File Name: ubuntu_USN-4399-1.nasl

Version: 1.6

Type: local

Agent: unix

Published: 6/18/2020

Updated: 9/17/2020

Dependencies: ssh_get_info.nasl

Risk Information

Risk Factor: Medium

VPR Score: 3.6

CVSS Score Source: CVE-2020-8619

CVSS v2.0

Base Score: 4

Temporal Score: 3

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

Temporal Vector: E:U/RL:OF/RC:C

CVSS v3.0

Base Score: 4.9

Temporal Score: 4.3

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

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

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:bind9, cpe:/o:canonical:ubuntu_linux:20.04

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

Exploit Ease: No known exploits are available

Patch Publication Date: 6/17/2020

Vulnerability Publication Date: 6/17/2020

Reference Information

CVE: CVE-2020-8618, CVE-2020-8619

USN: 4399-1

IAVA: 2020-A-0276-S