CVE-2018-13785 Information

Description

In libpng 1.6.34 a wrong calculation of row_factor in the png_check_chunk_length function (pngrutil.c) may trigger an integer overflow and resultant divide-by-zero while processing a crafted PNG file leading to a denial of service.

CVSS Vector

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

Reference

http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html http://www.securityfocus.com/bid/105599 http://www.securitytracker.com/id/1041889 https://access.redhat.com/errata/RHSA-2018:3000 https://access.redhat.com/errata/RHSA-2018:3001 https://access.redhat.com/errata/RHSA-2018:3002 https://access.redhat.com/errata/RHSA-2018:3003 https://access.redhat.com/errata/RHSA-2018:3007 https://access.redhat.com/errata/RHSA-2018:3008 https://access.redhat.com/errata/RHSA-2018:3533 https://access.redhat.com/errata/RHSA-2018:3534 https://access.redhat.com/errata/RHSA-2018:3671 https://access.redhat.com/errata/RHSA-2018:3672 https://access.redhat.com/errata/RHSA-2018:3779 https://access.redhat.com/errata/RHSA-2018:3852 https://github.com/glennrp/libpng/commit/8a05766cb74af05c04c53e6c9d60c13fc4d59bf2 https://security.gentoo.org/glsa/201908-10 https://security.netapp.com/advisory/ntap-20181018-0001/ https://sourceforge.net/p/libpng/bugs/278/ https://usn.ubuntu.com/3712-1/

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

REQUIRED

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

6.5