VDB-102835 · CVE-2017-9953 · Nessus 120594

Exiv2 0.26 Image::printIFDStructure use after free

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.
6.3	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Exiv2 0.26. It has been classified as problematic. The impacted element is the function Image::printIFDStructure. This manipulation causes use after free. This vulnerability is registered as CVE-2017-9953. Remote exploitation of the attack is possible. No exploit is available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as problematic was found in Exiv2 0.26 (Image Processing Software). Affected by this vulnerability is the function Image::printIFDStructure. The manipulation with an unknown input leads to a use after free vulnerability. The CWE definition for the vulnerability is CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. As an impact it is known to affect availability. The summary by CVE is:

There is an invalid free in Image::printIFDStructure that leads to a Segmentation fault in Exiv2 0.26. A crafted input will lead to a remote denial of service attack.

The bug was discovered 06/26/2017. The weakness was published 06/26/2017 (Website). It is possible to read the advisory at bugzilla.redhat.com. This vulnerability is known as CVE-2017-9953 since 06/26/2017. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 120594 (Fedora 28 : exiv2 (2018-8b67a5c7e2)), 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 277432 (Fedora Security Update for exiv2 (FEDORA-2018-8b67a5c7e2)).

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

The vulnerability is also documented in the vulnerability database at Tenable (120594). Similar entries are available at VDB-113170, VDB-115290, VDB-115291 and VDB-115292. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Image Processing Software

Name

Exiv2

Version

0.26

License

free

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.3

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

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Use after free
CWE: CWE-416 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
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: 120594
Nessus Name: Fedora 28 : exiv2 (2018-8b67a5c7e2)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Timelineinfo

06/26/2017 🔍
06/26/2017 +0 days 🔍
06/26/2017 +0 days 🔍
06/26/2017 +0 days 🔍
06/27/2017 +1 days 🔍
08/07/2018 +406 days 🔍
01/03/2019 +149 days 🔍
12/09/2022 +1436 days 🔍

Sourcesinfo

Advisory: FEDORA-2018-8b67a5c7e2
Status: Not defined

CVE: CVE-2017-9953 (🔍)
GCVE (CVE): GCVE-0-2017-9953
GCVE (VulDB): GCVE-100-102835
See also: 🔍

Entryinfo

Created: 06/27/2017 08:54
Updated: 12/09/2022 09:48
Changes: 06/27/2017 08:54 (63), 10/20/2019 16:34 (7), 12/09/2022 09:48 (4)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.