Amazon Linux AMI : libtiff (ALAS-2020-1447)

Medium Nessus Plugin ID 142980

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VPR Score: 5.9

Synopsis

The remote Amazon Linux AMI host is missing a security update.

Description

The version of tested product installed on the remote host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS-2020-1447 advisory.

- _TIFFCheckMalloc and _TIFFCheckRealloc in tif_aux.c in LibTIFF through 4.0.10 mishandle Integer Overflow checks because they rely on compiler behavior that is undefined by the applicable C standards. This can, for example, lead to an application crash. (CVE-2019-14973)

- tif_getimage.c in LibTIFF through 4.0.10, as used in GDAL through 3.0.1 and other products, has an integer overflow that potentially causes a heap-based buffer overflow via a crafted RGBA image, related to a Negative-size-param condition. (CVE-2019-17546)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Run 'yum update libtiff' to update your system.

See Also

https://alas.aws.amazon.com/ALAS-2020-1447.html

https://access.redhat.com/security/cve/CVE-2019-14973

https://access.redhat.com/security/cve/CVE-2019-17546

Plugin Details

Severity: Medium

ID: 142980

File Name: ala_ALAS-2020-1447.nasl

Version: 1.2

Type: local

Agent: unix

Published: 2020/11/18

Updated: 2020/11/18

Dependencies: 12634

Risk Information

Risk Factor: Medium

VPR Score: 5.9

CVSS Score Source: CVE-2019-17546

CVSS v2.0

Base Score: 6.8

Temporal Score: 5

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

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

CVSS v3.0

Base Score: 8.8

Temporal Score: 7.7

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/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:amazon:linux:libtiff, p-cpe:/a:amazon:linux:libtiff-debuginfo, p-cpe:/a:amazon:linux:libtiff-devel, p-cpe:/a:amazon:linux:libtiff-static, cpe:/o:amazon:linux

Required KB Items: Host/local_checks_enabled, Host/AmazonLinux/release, Host/AmazonLinux/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 2020/11/14

Vulnerability Publication Date: 2019/08/14

Reference Information

CVE: CVE-2019-14973, CVE-2019-17546

ALAS: 2020-1447