Cairo up to 1.15.14 WebKitGTK+ cairo-rectangular-scan-converter.c _cairo_image_spans_and_zero memory corruption

entryeditHistoryDiffjsonxmlCTI

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.
6.4	$0-$5k	0.00

A vulnerability classified as critical was found in Cairo up to 1.15.14. Affected by this vulnerability is the function _cairo_image_spans_and_zero of the file cairo-rectangular-scan-converter.c of the component WebKitGTK+. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

cairo through 1.15.14 has an out-of-bounds stack-memory write during processing of a crafted document by WebKitGTK+ because of the interaction between cairo-rectangular-scan-converter.c (the generate and render_rows functions) and cairo-image-compositor.c (the _cairo_image_spans_and_zero function).

The bug was discovered 10/08/2018. The weakness was published 10/08/2018 (Website). The advisory is shared at gitlab.freedesktop.org. This vulnerability is known as CVE-2018-18064 since 10/08/2018. 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 are known, but no exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 03/31/2020).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Productinfoedit

Name

Cairo

CPE 2.3infoedit

CPE 2.2infoedit

CVSSv3infoedit

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

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

NVD Base Score: 6.5
NVD Vector: 🔍

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VulDB Base Score: 🔍
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VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfoedit

Class: Memory corruption
CWE: CWE-119
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfoedit

Threat: 🔍
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Countermeasuresinfoedit

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfoedit

10/08/2018 🔍
10/08/2018 +0 days 🔍
10/08/2018 +0 days 🔍
10/08/2018 +0 days 🔍
10/09/2018 +1 days 🔍
03/31/2020 +539 days 🔍

Sourcesinfoedit

Advisory: gitlab.freedesktop.org
Status: Not defined

CVE: CVE-2018-18064 (🔍)

Entryinfoedit

Created: 10/09/2018 08:36 AM
Updated: 03/31/2020 04:51 PM
Changes: (1) vulnerability_discoverydate
Complete: 🔍