Amazon Linux AMI : libpng (ALAS-2015-615)

High Nessus Plugin ID 87341

Synopsis

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

Description

It was discovered that the png_get_PLTE() and png_set_PLTE() functions of libpng did not correctly calculate the maximum palette sizes for bit depths of less than 8. In case an application tried to use these functions in combination with properly calculated palette sizes, this could lead to a buffer overflow or out-of-bounds reads. An attacker could exploit this to cause a crash or potentially execute arbitrary code by tricking an unsuspecting user into processing a specially crafted PNG image. However, the exact impact is dependent on the application using the library. (CVE-2015-7981)

An array-indexing error was discovered in the png_convert_to_rfc1123() function of libpng. An attacker could possibly use this flaw to cause an out-of-bounds read by tricking an unsuspecting user into processing a specially crafted PNG image. (CVE-2015-8472)

Solution

Run 'yum update libpng' to update your system.

See Also

https://alas.aws.amazon.com/ALAS-2015-615.html

Plugin Details

Severity: High

ID: 87341

File Name: ala_ALAS-2015-615.nasl

Version: 2.4

Type: local

Agent: unix

Published: 2015/12/15

Updated: 2018/04/18

Dependencies: 12634

Risk Information

Risk Factor: High

CVSS v2.0

Base Score: 7.5

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

CVSS v3.0

Base Score: 7.3

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

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:libpng, p-cpe:/a:amazon:linux:libpng-debuginfo, p-cpe:/a:amazon:linux:libpng-devel, p-cpe:/a:amazon:linux:libpng-static, cpe:/o:amazon:linux

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

Patch Publication Date: 2015/12/14

Reference Information

CVE: CVE-2015-7981, CVE-2015-8472

ALAS: 2015-615