Exiv2 0.26 parseTXTChunk memory corruption

HistoryDiffrelatejsonxmlCTI

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.
6.2	$0-$5k	0.00

Summaryinfo

A vulnerability classified as critical has been found in Exiv2 0.26. Affected is the function Exiv2::Internal::PngChunk::parseTXTChunk. This manipulation causes memory corruption. This vulnerability is registered as CVE-2018-10999. Remote exploitation of the attack is possible. No exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Exiv2 0.26 (Image Processing Software). It has been declared as critical. Affected by this vulnerability is the function Exiv2::Internal::PngChunk::parseTXTChunk. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

An issue was discovered in Exiv2 0.26. The Exiv2::Internal::PngChunk::parseTXTChunk function has a heap-based buffer over-read.

The bug was discovered 05/10/2018. The weakness was published 05/12/2018 (Website). It is possible to read the advisory at github.com. This vulnerability is known as CVE-2018-10999 since 05/11/2018. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability was handled as a non-public zero-day exploit for at least 2 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 110728 (Debian DLA-1402-1 : exiv2 security update), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 197188 (Ubuntu Security Notification for Exiv2 Vulnerabilities (USN-3700-1)).

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 (110728). Similar entries are available at VDB-117542, VDB-117654, VDB-118285 and VDB-119512. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Image Processing Software

Name

Exiv2

Version

0.26

License

free

Website

Product: https://github.com/Exiv2/exiv2/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.2

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
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: Memory corruption
CWE: 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: 110728
Nessus Name: Debian DLA-1402-1 : exiv2 security update
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

05/10/2018 🔍
05/11/2018 +1 days 🔍
05/12/2018 +0 days 🔍
05/12/2018 +0 days 🔍
05/12/2018 +0 days 🔍
06/28/2018 +47 days 🔍
06/28/2018 +0 days 🔍
03/13/2023 +1719 days 🔍

Sourcesinfo

Product: github.com

Advisory: 306
Status: Not defined

CVE: CVE-2018-10999 (🔍)
GCVE (CVE): GCVE-0-2018-10999
GCVE (VulDB): GCVE-100-117655

OVAL: 🔍
See also: 🔍

Entryinfo

Created: 05/12/2018 21:32
Updated: 03/13/2023 08:11
Changes: 05/12/2018 21:32 (72), 02/04/2020 17:07 (3), 03/13/2023 08:06 (4), 03/13/2023 08:11 (1)
Complete: 🔍
Cache ID: 216::103