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Ubuntu 16.04 ESM : Bind vulnerabilities (USN-5626-2)

high Nessus Plugin ID 165289

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Synopsis

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

Description

The remote Ubuntu 16.04 ESM host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-5626-2 advisory.

 - By flooding the target resolver with queries exploiting this flaw an attacker can significantly impair the resolver's performance, effectively denying legitimate clients access to the DNS resolution service.
 (CVE-2022-2795)

 - By spoofing the target resolver with responses that have a malformed ECDSA signature, an attacker can trigger a small memory leak. It is possible to gradually erode available memory to the point where named crashes for lack of resources. (CVE-2022-38177)

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-5626-2

Plugin Details

Severity: High

ID: 165289

File Name: ubuntu_USN-5626-2.nasl

Version: 1.5

Type: local

Agent: unix

Published: 9/21/2022

Updated: 7/12/2023

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

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

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

CVSS Score Source: CVE-2022-38177

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: cpe:/o:canonical:ubuntu_linux:16.04:-:esm, p-cpe:/a:canonical:ubuntu_linux:bind9, p-cpe:/a:canonical:ubuntu_linux:bind9-host, p-cpe:/a:canonical:ubuntu_linux:bind9utils, p-cpe:/a:canonical:ubuntu_linux:dnsutils, p-cpe:/a:canonical:ubuntu_linux:host, p-cpe:/a:canonical:ubuntu_linux:libbind-dev, p-cpe:/a:canonical:ubuntu_linux:libbind-export-dev, p-cpe:/a:canonical:ubuntu_linux:libbind9-140, p-cpe:/a:canonical:ubuntu_linux:libbind9-90, p-cpe:/a:canonical:ubuntu_linux:libdns-export162, p-cpe:/a:canonical:ubuntu_linux:libdns100, p-cpe:/a:canonical:ubuntu_linux:libdns162, p-cpe:/a:canonical:ubuntu_linux:libirs-export141, p-cpe:/a:canonical:ubuntu_linux:libirs141, p-cpe:/a:canonical:ubuntu_linux:libisc-export160, p-cpe:/a:canonical:ubuntu_linux:libisc160, p-cpe:/a:canonical:ubuntu_linux:libisc95, p-cpe:/a:canonical:ubuntu_linux:libisccc-export140, p-cpe:/a:canonical:ubuntu_linux:libisccc-export140-udeb, p-cpe:/a:canonical:ubuntu_linux:libisccc140, p-cpe:/a:canonical:ubuntu_linux:libisccc90, p-cpe:/a:canonical:ubuntu_linux:libisccfg-export140, p-cpe:/a:canonical:ubuntu_linux:libisccfg140, p-cpe:/a:canonical:ubuntu_linux:libisccfg90, p-cpe:/a:canonical:ubuntu_linux:liblwres141, p-cpe:/a:canonical:ubuntu_linux:liblwres90, p-cpe:/a:canonical:ubuntu_linux:lwresd

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

Exploit Ease: No known exploits are available

Patch Publication Date: 9/21/2022

Vulnerability Publication Date: 9/21/2022

Reference Information

CVE: CVE-2022-2795, CVE-2022-38177

USN: 5626-2