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Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS : Bind vulnerabilities (USN-4929-1)

critical Nessus Plugin ID 149092

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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-4929-1 advisory.

 Greg Kuechle discovered that Bind incorrectly handled certain incremental zone updates. A remote attacker could possibly use this issue to cause Bind to crash, resulting in a denial of service. (CVE-2021-25214)

 Siva Kakarla discovered that Bind incorrectly handled certain DNAME records. A remote attacker could possibly use this issue to cause Bind to crash, resulting in a denial of service. (CVE-2021-25215)

 It was discovered that Bind incorrectly handled GSSAPI security policy negotiation. A remote attacker could use this issue to cause Bind to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2021-25216)

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-4929-1

Plugin Details

Severity: Critical

ID: 149092

File Name: ubuntu_USN-4929-1.nasl

Version: 1.10

Type: local

Agent: unix

Published: 4/30/2021

Updated: 8/28/2024

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

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

CVSS Score Source: CVE-2021-25216

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

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

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

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:libisccc-export140-udeb, p-cpe:/a:canonical:ubuntu_linux:libisccfg-export160-udeb, cpe:/o:canonical:ubuntu_linux:20.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:bind9-dnsutils, p-cpe:/a:canonical:ubuntu_linux:liblwres160, p-cpe:/a:canonical:ubuntu_linux:libisccfg160, p-cpe:/a:canonical:ubuntu_linux:libbind-export-dev, p-cpe:/a:canonical:ubuntu_linux:libbind9-140, p-cpe:/a:canonical:ubuntu_linux:libisccc-export140, p-cpe:/a:canonical:ubuntu_linux:libdns-export162-udeb, p-cpe:/a:canonical:ubuntu_linux:liblwres141, p-cpe:/a:canonical:ubuntu_linux:libisccfg-export140-udeb, p-cpe:/a:canonical:ubuntu_linux:libisccfg-export160, p-cpe:/a:canonical:ubuntu_linux:bind9-libs, p-cpe:/a:canonical:ubuntu_linux:libbind9-160, p-cpe:/a:canonical:ubuntu_linux:libisc-export160-udeb, p-cpe:/a:canonical:ubuntu_linux:bind9, p-cpe:/a:canonical:ubuntu_linux:libirs160, p-cpe:/a:canonical:ubuntu_linux:libisccc140, p-cpe:/a:canonical:ubuntu_linux:lwresd, p-cpe:/a:canonical:ubuntu_linux:libbind-dev, p-cpe:/a:canonical:ubuntu_linux:libisccfg140, cpe:/o:canonical:ubuntu_linux:18.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:libirs-export160-udeb, p-cpe:/a:canonical:ubuntu_linux:libisccc-export160, p-cpe:/a:canonical:ubuntu_linux:libdns-export1100, p-cpe:/a:canonical:ubuntu_linux:libisc-export169-udeb, p-cpe:/a:canonical:ubuntu_linux:bind9-utils, p-cpe:/a:canonical:ubuntu_linux:libdns-export162, p-cpe:/a:canonical:ubuntu_linux:libisc169, p-cpe:/a:canonical:ubuntu_linux:libirs-export141-udeb, p-cpe:/a:canonical:ubuntu_linux:libdns1100, p-cpe:/a:canonical:ubuntu_linux:libisc-export160, p-cpe:/a:canonical:ubuntu_linux:host, p-cpe:/a:canonical:ubuntu_linux:dnsutils, p-cpe:/a:canonical:ubuntu_linux:libisc160, p-cpe:/a:canonical:ubuntu_linux:bind9utils, cpe:/o:canonical:ubuntu_linux:16.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:libdns-export1100-udeb, p-cpe:/a:canonical:ubuntu_linux:libirs141, p-cpe:/a:canonical:ubuntu_linux:libisc-export169, p-cpe:/a:canonical:ubuntu_linux:libisccc160, p-cpe:/a:canonical:ubuntu_linux:libirs-export160, p-cpe:/a:canonical:ubuntu_linux:libisccc-export160-udeb, p-cpe:/a:canonical:ubuntu_linux:libisccfg-export140, p-cpe:/a:canonical:ubuntu_linux:bind9-host, p-cpe:/a:canonical:ubuntu_linux:libirs-export141, p-cpe:/a:canonical:ubuntu_linux:libdns162

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

Exploit Ease: No known exploits are available

Patch Publication Date: 4/29/2021

Vulnerability Publication Date: 4/29/2021

Reference Information

CVE: CVE-2021-25214, CVE-2021-25215, CVE-2021-25216

IAVA: 2021-A-0206-S

USN: 4929-1