CVE-2022-35649: Moodle PostScript Code Injection

Published Jul 12, 2022
·
Updated

An omitted execution parameter resulted in a remote code execution risk for sites running GhostScript versions older than 9.50.

Versions affected: 4.0 to 4.0.1, 3.11 to 3.11.7, 3.9 to 3.9.14 and earlier unsupported versions Versions fixed: 4.0.2, 3.11.8 and 3.9.15

Other sources

The vulnerability was found in Moodle, occurs due to improper input validation when parsing PostScript code. An omitted execution parameter results in a remote code execution risk for sites running GhostScript versions older than 9.50. Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

— GitHub

Affected Software

14 affected componentsFixes available
composer/moodle/moodle>=4.0<4.0.2
4.0.2
composer/moodle/moodle>=3.11<3.11.8
3.11.8
composer/moodle/moodle>=3.9<3.9.15
3.9.15
redhat/moodle<4.0.2
4.0.2
redhat/moodle<3.11.8
3.11.8
redhat/moodle<3.9.15
3.9.15
Moodle Moodle>=3.9.0<3.9.15
Moodle Moodle>=3.11.0<3.11.8
Moodle Moodle>=4.0.0<4.0.2
Fedoraproject Fedora=35
Fedoraproject Fedora=36
composer/moodle/moodle>=4.0, <4.0.2
4.0.2
composer/moodle/moodle>=3.11, <3.11.8
3.11.8
composer/moodle/moodle>=3.9, <3.9.15
3.9.15

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade composer/moodle/moodle to a version that resolves this vulnerability.

    Fixed in 4.0.2
  2. Upgrade

    Upgrade composer/moodle/moodle to a version that resolves this vulnerability.

    Fixed in 3.11.8
  3. Upgrade

    Upgrade composer/moodle/moodle to a version that resolves this vulnerability.

    Fixed in 3.9.15
  4. Upgrade

    Upgrade redhat/moodle to a version that resolves this vulnerability.

    Fixed in 4.0.2
  5. Upgrade

    Upgrade redhat/moodle to a version that resolves this vulnerability.

    Fixed in 3.11.8
  6. Upgrade

    Upgrade redhat/moodle to a version that resolves this vulnerability.

    Fixed in 3.9.15
  7. Upgrade

    Upgrade GhostScript to a version that resolves this vulnerability.

    Fixed in 9.50
  8. Upgrade

    Upgrade Moodle to a version that resolves this vulnerability.

    Fixed in 4.0.2
  9. Upgrade

    Upgrade Moodle to a version that resolves this vulnerability.

    Fixed in 3.11.8
  10. Upgrade

    Upgrade Moodle to a version that resolves this vulnerability.

    Fixed in 3.9.15

Event History

Jul 25, 2022
CVE Published
via MITRE·03:27 PM
Data Sourced
via MITRE·03:27 PM
DescriptionWeakness
Data Sourced
via NVD·04:15 PM
RemedyDescriptionSeverityWeaknessAffected Software
Jul 26, 2022
Advisory Published
via GitHub·12:00 AM
Data Sourced
via GitHub·12:00 AM
DescriptionSeverityWeaknessAffected Software
Data Sourced
via Packagist·12:00 AM
DescriptionSeverityAffected Software
Mar 6, 2023
Exploit Published
via GitHub·10:09 AM

Frequently Asked Questions

1

What is CVE-2022-35649?

CVE-2022-35649 is a vulnerability found in Moodle, which occurs due to improper input validation when parsing PostScript code.

2

How does CVE-2022-35649 impact Moodle sites?

CVE-2022-35649 poses a remote code execution risk for sites running GhostScript versions older than 9.50.

3

Which versions of Moodle are affected by CVE-2022-35649?

Moodle versions 3.9.0 to 3.9.15, 3.11.0 to 3.11.8, and 4.0.0 to 4.0.2 are affected by CVE-2022-35649.

4

How severe is CVE-2022-35649?

CVE-2022-35649 has a severity rating of 9.8 (Critical).

5

How can I fix CVE-2022-35649 in Moodle?

To fix CVE-2022-35649 in Moodle, it is recommended to upgrade to Moodle versions 3.9.16, 3.11.9, or 4.0.3.

Company

Resources

Contact

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