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CVE-2021-23437

Good to know:

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Date: September 3, 2021

The package pillow 5.2.0 and before 8.3.2 are vulnerable to Regular Expression Denial of Service (ReDoS) via the getrgb function.

Language: Python

Severity Score

Related Resources (15)

https://github.com/python-pillow/Pillow/commit/9e08eb8f78fdfd2f476e1b20b7cf38683754866b
https://github.com/python-pillow/Pillow
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VKRCL7KKAKOXCVD7M6WC5OKFGL4L3SJT/
https://pillow.readthedocs.io/en/stable/releasenotes/8.3.2.html
https://github.com/pypa/advisory-database/tree/main/vulns/pillow/PYSEC-2021-317.yaml
https://nvd.nist.gov/vuln/detail/CVE-2021-23437
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RNSG6VFXTAROGF7ACYLMAZNQV4EJ6I2C
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VKRCL7KKAKOXCVD7M6WC5OKFGL4L3SJT
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RNSG6VFXTAROGF7ACYLMAZNQV4EJ6I2C
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RNSG6VFXTAROGF7ACYLMAZNQV4EJ6I2C/
https://lists.debian.org/debian-lts-announce/2024/03/msg00021.html
https://security.gentoo.org/glsa/202211-10
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VKRCL7KKAKOXCVD7M6WC5OKFGL4L3SJT
https://github.com/advisories/GHSA-98vv-pw6r-q6q4
https://www.mend.io/vulnerability-database/CVE-2021-23437

Severity Score

Weakness Type (CWE)

Out-of-bounds Read

CWE-125

Uncontrolled Resource Consumption ('Resource Exhaustion')

CWE-400

Top Fix

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Upgrade to version Pillow - 8.3.2

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): PARTIAL
Additional information:

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