VDB-92307 · CVE-2016-3623 · BID 85952

LibTIFF up to 4.0.6 rgb2ycbcr v/h divide by zero

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
7.2	$0-$5k	0.00

A vulnerability, which was classified as critical, was found in LibTIFF up to 4.0.6 (Image Processing Software). This affects an unknown code block of the component rgb2ycbcr. The manipulation of the argument v/h with an unknown input leads to a divide by zero vulnerability. CWE is classifying the issue as CWE-369. The product divides a value by zero. This is going to have an impact on availability. The summary by CVE is:

The rgb2ycbcr tool in LibTIFF 4.0.6 and earlier allows remote attackers to cause a denial of service (divide-by-zero) by setting the (1) v or (2) h parameter to 0.

The weakness was disclosed 10/03/2016 by Security Team with Qihoo 360 (Website). It is possible to read the advisory at bugzilla.maptools.org. This vulnerability is uniquely identified as CVE-2016-3623 since 03/21/2016. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1499 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 94039 (SUSE SLED12 / SLES12 Security Update : tiff (SUSE-SU-2016:2508-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 169246 (SUSE Enterprise Linux Security Update for tiff (SUSE-SU-2016:2508-1)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 2 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (94039). The entry 81885 is pretty similar.

Productinfo

Type

Image Processing Software

Name

LibTIFF

Version

License

open-source

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.3

VulDB Base Score: 7.5
VulDB Temp Score: 7.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Divide by zero
CWE: CWE-369 / CWE-404
ATT&CK: T1499

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	unlock	unlock	unlock	unlock
Today	unlock	unlock	unlock	unlock

Nessus ID: 94039
Nessus Name: SUSE SLED12 / SLES12 Security Update : tiff (SUSE-SU-2016:2508-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 703762
OpenVAS Name: Debian Security Advisory DSA 3762-1 (tiff - security update)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Timelineinfo

03/21/2016 🔍
04/08/2016 +18 days 🔍
10/03/2016 +178 days 🔍
10/03/2016 +0 days 🔍
10/04/2016 +1 days 🔍
10/12/2016 +8 days 🔍
10/13/2016 +1 days 🔍
04/30/2019 +929 days 🔍

Sourcesinfo

Product: libtiff.org

Advisory: bugzilla.maptools.org
Researcher: Security Team
Organization: Qihoo 360
Status: Not defined
Confirmation: 🔍

CVE: CVE-2016-3623 (🔍)
OVAL: 🔍

SecurityFocus: 85952 - LibTIFF CVE-2016-3623 Divide By Zero Denial of Service Vulnerability

See also: 🔍

Entryinfo

Created: 10/04/2016 10:28
Updated: 04/30/2019 14:18
Changes: 10/04/2016 10:28 (66), 04/30/2019 14:18 (16)
Complete: 🔍