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Ubuntu 16.04 LTS / 18.04 LTS : pam-krb5 vulnerability (USN-4314-1)

critical Nessus Plugin ID 135170

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Synopsis

The remote Ubuntu host is missing a security update.

Description

Russ Allbery discovered that pam-krb5 incorrectly handled some responses. An attacker could possibly use this issue to execute arbitrary code.

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 libpam-heimdal and / or libpam-krb5 packages.

See Also

https://ubuntu.com/security/notices/USN-4314-1

Plugin Details

Severity: Critical

ID: 135170

File Name: ubuntu_USN-4314-1.nasl

Version: 1.6

Type: local

Agent: unix

Published: 4/2/2020

Updated: 10/21/2023

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

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.5

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

CVSS Score Source: CVE-2020-10595

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:libpam-krb5, cpe:/o:canonical:ubuntu_linux:16.04:-:lts, cpe:/o:canonical:ubuntu_linux:18.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:libpam-heimdal

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

Exploit Ease: No known exploits are available

Patch Publication Date: 3/31/2020

Vulnerability Publication Date: 3/31/2020

Reference Information

CVE: CVE-2020-10595

USN: 4314-1