CVE-2021-23437
Pillow ReDoS Vulnerability
Description
The package pillow 5.2.0 and before 8.3.2 are vulnerable to Regular Expression Denial of Service (ReDoS) via the getrgb function.
INFO
Published Date :
Sept. 3, 2021, 4:15 p.m.
Last Modified :
March 22, 2024, 11:15 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
3.9
Public PoC/Exploit Available at Github
CVE-2021-23437 has a 4 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2021-23437.
| URL | Resource |
|---|---|
| https://github.com/python-pillow/Pillow/commit/9e08eb8f78fdfd2f476e1b20b7cf38683754866b | Patch Third Party Advisory |
| https://lists.debian.org/debian-lts-announce/2024/03/msg00021.html | |
| 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://pillow.readthedocs.io/en/stable/releasenotes/8.3.2.html | Release Notes Vendor Advisory |
| https://security.gentoo.org/glsa/202211-10 | Third Party Advisory |
| https://snyk.io/vuln/SNYK-PYTHON-PILLOW-1319443 | Exploit Patch Release Notes Third Party Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Ini adalah repository kumpulan CVE v.5
allcve cve cvelist newcve
Create Python- and R-containers with security vulnerabilities. Used for testing security scanning.
Dockerfile R
List of RegEx DoS (ReDoS) CVEs and resources
security awesome redos regex dos regex-dos pentesting awesome-list regex-security
Holds Discord Bot Backup
Python HTML Dockerfile Procfile
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-23437 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-23437 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Mar. 22, 2024
Action Type Old Value New Value Added Reference Snyk https://lists.debian.org/debian-lts-announce/2024/03/msg00021.html [No types assigned] -
CVE Modified by [email protected]
Nov. 07, 2023
Action Type Old Value New Value Added Reference Snyk https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VKRCL7KKAKOXCVD7M6WC5OKFGL4L3SJT/ [No types assigned] Added Reference Snyk https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RNSG6VFXTAROGF7ACYLMAZNQV4EJ6I2C/ [No types assigned] Removed Reference Snyk https://lists.fedoraproject.org/archives/list/[email protected]/message/VKRCL7KKAKOXCVD7M6WC5OKFGL4L3SJT/ Removed Reference Snyk https://lists.fedoraproject.org/archives/list/[email protected]/message/RNSG6VFXTAROGF7ACYLMAZNQV4EJ6I2C/ -
Modified Analysis by [email protected]
Jan. 31, 2023
Action Type Old Value New Value Changed Reference Type https://security.gentoo.org/glsa/202211-10 No Types Assigned https://security.gentoo.org/glsa/202211-10 Third Party Advisory -
CVE Modified by [email protected]
Nov. 22, 2022
Action Type Old Value New Value Added Reference https://security.gentoo.org/glsa/202211-10 [No Types Assigned] -
Modified Analysis by [email protected]
Nov. 30, 2021
Action Type Old Value New Value Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/RNSG6VFXTAROGF7ACYLMAZNQV4EJ6I2C/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/RNSG6VFXTAROGF7ACYLMAZNQV4EJ6I2C/ Mailing List, Third Party Advisory Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/VKRCL7KKAKOXCVD7M6WC5OKFGL4L3SJT/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/VKRCL7KKAKOXCVD7M6WC5OKFGL4L3SJT/ Mailing List, Third Party Advisory Changed Reference Type https://snyk.io/vuln/SNYK-PYTHON-PILLOW-1319443 Exploit, Third Party Advisory https://snyk.io/vuln/SNYK-PYTHON-PILLOW-1319443 Exploit, Patch, Release Notes, Third Party Advisory Changed CPE Configuration OR *cpe:2.3:a:python:pillow:*:*:*:*:*:*:*:* versions up to (excluding) 8.3.2 OR *cpe:2.3:a:python:pillow:*:*:*:*:*:*:*:* versions from (including) 5.2.0 up to (excluding) 8.3.2 Added CPE Configuration OR *cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Sep. 22, 2021
Action Type Old Value New Value Changed Description The package pillow from 0 and before 8.3.2 are vulnerable to Regular Expression Denial of Service (ReDoS) via the getrgb function. The package pillow 5.2.0 and before 8.3.2 are vulnerable to Regular Expression Denial of Service (ReDoS) via the getrgb function. -
CVE Modified by [email protected]
Sep. 21, 2021
Action Type Old Value New Value Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/VKRCL7KKAKOXCVD7M6WC5OKFGL4L3SJT/ [No Types Assigned] Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/RNSG6VFXTAROGF7ACYLMAZNQV4EJ6I2C/ [No Types Assigned] -
Initial Analysis by [email protected]
Sep. 10, 2021
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:N/I:N/A:P) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Changed Reference Type https://github.com/python-pillow/Pillow/commit/9e08eb8f78fdfd2f476e1b20b7cf38683754866b No Types Assigned https://github.com/python-pillow/Pillow/commit/9e08eb8f78fdfd2f476e1b20b7cf38683754866b Patch, Third Party Advisory Changed Reference Type https://pillow.readthedocs.io/en/stable/releasenotes/8.3.2.html No Types Assigned https://pillow.readthedocs.io/en/stable/releasenotes/8.3.2.html Release Notes, Vendor Advisory Changed Reference Type https://snyk.io/vuln/SNYK-PYTHON-PILLOW-1319443 No Types Assigned https://snyk.io/vuln/SNYK-PYTHON-PILLOW-1319443 Exploit, Third Party Advisory Added CWE NIST CWE-125 Added CPE Configuration OR *cpe:2.3:a:python:pillow:*:*:*:*:*:*:*:* versions up to (excluding) 8.3.2
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-23437 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2021-23437
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.67 }} 0.11%
score
0.79701
percentile