Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS / 20.10 : LibTIFF vulnerabilities (USN-4755-1)

high Nessus Plugin ID 148000

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 / 20.10 host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-4755-1 advisory.

- An integer overflow flaw was found in libtiff that exists in the tif_getimage.c file. This flaw allows an attacker to inject and execute arbitrary code when a user opens a crafted TIFF file. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability. (CVE-2020-35523)

- A heap-based buffer overflow flaw was found in libtiff in the handling of TIFF images in libtiff's TIFF2PDF tool. A specially crafted TIFF file can lead to arbitrary code execution. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability. (CVE-2020-35524)

Note that Nessus has not tested for this issue 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-4755-1

Plugin Details

Severity: High

ID: 148000

File Name: ubuntu_USN-4755-1.nasl

Version: 1.2

Type: local

Agent: unix

Published: 3/23/2021

Updated: 3/23/2021

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

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

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

CVSS Score Source: CVE-2020-35524

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

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

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

Vulnerability Information

CPE: cpe:/o:canonical:ubuntu_linux:16.04:-:lts, cpe:/o:canonical:ubuntu_linux:18.04:-:lts, cpe:/o:canonical:ubuntu_linux:20.04:-:lts, cpe:/o:canonical:ubuntu_linux:20.10, p-cpe:/a:canonical:ubuntu_linux:libtiff-dev, p-cpe:/a:canonical:ubuntu_linux:libtiff-opengl, p-cpe:/a:canonical:ubuntu_linux:libtiff-tools, p-cpe:/a:canonical:ubuntu_linux:libtiff5, p-cpe:/a:canonical:ubuntu_linux:libtiff5-dev, p-cpe:/a:canonical:ubuntu_linux:libtiffxx5

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

Exploit Ease: No known exploits are available

Patch Publication Date: 2/25/2021

Vulnerability Publication Date: 3/9/2021

Reference Information

CVE: CVE-2020-35523, CVE-2020-35524

USN: 4755-1