VDB-114149 · CVE-2018-7728 · Nessus 108839

Exempi up to 2.4.4 TIFF_Handler.cpp MD5Update Zero Length out-of-bounds

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.
5.3	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Exempi up to 2.4.4. It has been rated as critical. This affects the function MD5Update of the file XMPFiles/source/FileHandlers/TIFF_Handler.cpp. The manipulation as part of Zero Length leads to out-of-bounds. This vulnerability is traded as CVE-2018-7728. An attack has to be approached locally. There is no exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Exempi up to 2.4.4. This issue affects the function MD5Update of the file XMPFiles/source/FileHandlers/TIFF_Handler.cpp. The manipulation as part of a Zero Length leads to a out-of-bounds vulnerability. Using CWE to declare the problem leads to CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

An issue was discovered in Exempi through 2.4.4. XMPFiles/source/FileHandlers/TIFF_Handler.cpp mishandles a case of a zero length, leading to a heap-based buffer over-read in the MD5Update() function in third-party/zuid/interfaces/MD5.cpp.

The bug was discovered 02/26/2018. The weakness was shared 03/06/2018 (Website). The advisory is shared at bugs.freedesktop.org. The identification of this vulnerability is CVE-2018-7728 since 03/06/2018. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. Technical details are known, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 8 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 108839 (Fedora 27 : exempi (2018-c442aad4dc)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 171678 (SUSE Enterprise Linux Security Update for exempi (SUSE-SU-2018:3389-1)).

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

The vulnerability is also documented in the vulnerability database at Tenable (108839). The entries VDB-114150, VDB-114151, VDB-114152 and VDB-114655 are related to this item. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Name

Exempi

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Out-of-bounds
CWE: CWE-125 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
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: 108839
Nessus Name: Fedora 27 : exempi (2018-c442aad4dc)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 52995
OpenVAS Name: Debian LTS Advisory ([SECURITY] [DLA 1310-1] exempi 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: 🔍

Patch: cgit.freedesktop.org

Timelineinfo

02/26/2018 🔍
03/06/2018 +8 days 🔍
03/06/2018 +0 days 🔍
03/06/2018 +0 days 🔍
03/07/2018 +1 days 🔍
04/04/2018 +28 days 🔍
04/05/2018 +1 days 🔍
02/17/2023 +1779 days 🔍

Sourcesinfo

Advisory: FEDORA-2018-c442aad4dc
Status: Confirmed

CVE: CVE-2018-7728 (🔍)
GCVE (CVE): GCVE-0-2018-7728
GCVE (VulDB): GCVE-100-114149
See also: 🔍

Entryinfo

Created: 03/07/2018 08:03
Updated: 02/17/2023 09:08
Changes: 03/07/2018 08:03 (73), 01/10/2020 21:50 (3), 02/17/2023 09:05 (5), 02/17/2023 09:08 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.