Inkscape in Industrial Products

1. EXECUTIVE SUMMARY

• CVSS v3 7.8
• ATTENTION: Low attack complexity
• Vendor: Inkscape
• Equipment: Inkscape, an open-source graphics editor
• Vulnerabilities: Out-of-bounds Read, Access of Uninitialized Pointer, Out-of-bounds Write

2. RISK EVALUATION

Successful exploitation of these vulnerabilities could allow unauthorized information disclosure and code execution.

3. TECHNICAL DETAILS

3.1 AFFECTED PRODUCTS

The following versions of the Inkscape open-source graphics editor are affected:

• Inkscape Version 0.91

3.2 VULNERABILITY OVERVIEW

3.2.1    OUT-OF-BOUNDS READ CWE-125

The affected product is vulnerable to an out-of-bounds read, which may allow an attacker to have access to unauthorized information.

CVE-2021-42700 has been assigned to this vulnerability. A CVSS v3 base score of 3.3 has been calculated; the CVSS vector string is (AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N).

3.2.2    ACCESS OF UNINITIALIZED POINTER CWE-824

The affected product can access an uninitialized pointer, which may allow an attacker to have access to unauthorized information.

CVE-2021-42702 has been assigned to this vulnerability. A CVSS v3 base score of 3.3 has been calculated; the CVSS vector string is (AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N).

3.2.3    OUT-OF-BOUNDS WRITE CWE-787

The affected product is vulnerable to an out-of-bounds write, which may allow an attacker to arbitrary execute code.

CVE-2021-42704 has been assigned to this vulnerability. A CVSS v3 base score of 7.8 has been calculated; the CVSS vector string is (AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H).

3.3 BACKGROUND

• CRITICAL INFRASTRUCTURE SECTORS: Multiple Sectors
• COUNTRIES/AREAS DEPLOYED: Worldwide
• COMPANY HEADQUARTERS LOCATION: Open-source

3.4 RESEARCHER

Tran Van Khang – khangkito (VinCSS), working with Trend Micro’s Zero Day Initiative, reported these vulnerabilities to CISA.

4. MITIGATIONS

Inkscape has fixed these vulnerabilities and recommends users update to Version Inkscape 1.0 or later.

See the following links for more information and mitigations on products that use Inkscape:

• Ecava IntegraXor

CISA also recommends users take the following measures to protect themselves from social engineering attacks:

• Do not click web links or open unsolicited attachments in email messages.
• Refer to Recognizing and Avoiding Email Scams for more information on avoiding email scams.
• Refer to Avoiding Social Engineering and Phishing Attacks for more information on social engineering attacks.

CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.



CISA also provides a section for control systems security recommended practices on the ICS webpage on cisa.gov Several recommended practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies.

Additional mitigation guidance and recommended practices are publicly available on the ICS webpage on cisa.gov in the Technical Information Paper, ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation Strategies.



Organizations observing any suspected malicious activity should follow their established internal procedures and report their findings to CISA for tracking and correlation against other incidents.

No known public exploits specifically target these vulnerabilities. These vulnerabilities are not exploitable remotely.

• Inkscape