Executive Summary

Summary
Title libpng: Remote execution of arbitrary code
Informations
Name GLSA-201701-74 First vendor Publication 2017-01-29
Vendor Gentoo Last vendor Modification 2017-01-29
Severity (Vendor) N/A Revision N/A

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:N/C:N/I:N/A:P)
Cvss Base Score 5 Attack Range Network
Cvss Impact Score 2.9 Attack Complexity Low
Cvss Expoit Score 10 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

Synopsis

A null pointer dereference in libpng might allow remote attackers to execute arbitrary code.

Background

libpng is a standard library used to process PNG (Portable Network Graphics) images. It is used by several programs, including web browsers and potentially server processes.

Description

A null pointer dereference was discovered in libpng in the png_push_save_buffer function. In order to be vulnerable, an application has to load a text chunk into the PNG structure, then delete all text, then add another text chunk to the same PNG structure, which seems to be an unlikely sequence, but it is possible.

Impact

A remote attacker, by enticing a user to process a specially crafted PNG file, could execute arbitrary code with the privileges of the process.

Workaround

There is no known workaround at this time.

Resolution

All libpng 1.6.x users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=media-libs/libpng-1.6.27"

All libpng 1.5.x users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=media-libs/libpng-1.5.28:1.5"

All libpng 1.2.x users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=media-libs/libpng-1.2.57:1.2"

References

[ 1 ] CVE-2016-10087 : http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-10087

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website:

https://security.gentoo.org/glsa/201701-74

Original Source

Url : http://security.gentoo.org/glsa/glsa-201701-74.xml

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-476 NULL Pointer Dereference

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 250

Nessus® Vulnerability Scanner

Date Description
2017-07-17 Name : The remote Fedora host is missing a security update.
File : fedora_2017-1d305fa070.nasl - Type : ACT_GATHER_INFO
2017-04-18 Name : The remote openSUSE host is missing a security update.
File : openSUSE-2017-477.nasl - Type : ACT_GATHER_INFO
2017-04-17 Name : The remote Fedora host is missing a security update.
File : fedora_2017-84bc8ac268.nasl - Type : ACT_GATHER_INFO
2017-04-17 Name : The remote Fedora host is missing a security update.
File : fedora_2017-bad9942e42.nasl - Type : ACT_GATHER_INFO
2017-04-13 Name : The remote Fedora host is missing a security update.
File : fedora_2017-66fd940572.nasl - Type : ACT_GATHER_INFO
2017-04-13 Name : The remote Fedora host is missing a security update.
File : fedora_2017-cf1944f480.nasl - Type : ACT_GATHER_INFO
2017-04-07 Name : The remote SUSE host is missing one or more security updates.
File : suse_SU-2017-0950-1.nasl - Type : ACT_GATHER_INFO
2017-04-06 Name : The remote openSUSE host is missing a security update.
File : openSUSE-2017-441.nasl - Type : ACT_GATHER_INFO
2017-04-06 Name : The remote openSUSE host is missing a security update.
File : openSUSE-2017-443.nasl - Type : ACT_GATHER_INFO
2017-04-03 Name : The remote SUSE host is missing one or more security updates.
File : suse_SU-2017-0901-1.nasl - Type : ACT_GATHER_INFO
2017-03-30 Name : The remote SUSE host is missing one or more security updates.
File : suse_SU-2017-0853-1.nasl - Type : ACT_GATHER_INFO
2017-03-30 Name : The remote SUSE host is missing one or more security updates.
File : suse_SU-2017-0860-1.nasl - Type : ACT_GATHER_INFO
2017-01-30 Name : The remote Gentoo host is missing one or more security-related patches.
File : gentoo_GLSA-201701-74.nasl - Type : ACT_GATHER_INFO
2017-01-10 Name : The remote Fedora host is missing a security update.
File : fedora_2016-1a7e14d084.nasl - Type : ACT_GATHER_INFO
2017-01-10 Name : The remote Fedora host is missing a security update.
File : fedora_2016-a4b06a036b.nasl - Type : ACT_GATHER_INFO
2017-01-03 Name : The remote Slackware host is missing a security update.
File : Slackware_SSA_2016-365-01.nasl - Type : ACT_GATHER_INFO

Alert History

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0
1
2
Date Informations
2017-07-01 09:25:35
  • Multiple Updates
2017-01-31 13:26:20
  • Multiple Updates
2017-01-29 21:23:34
  • First insertion