CVE-2024-21503 (GCVE-0-2024-21503)

Vulnerability from cvelistv5 – Published: 2024-03-19 05:00 – Updated: 2024-08-01 22:20
VLAI
Summary
Versions of the package black before 24.3.0 are vulnerable to Regular Expression Denial of Service (ReDoS) via the lines_with_leading_tabs_expanded function in the strings.py file. An attacker could exploit this vulnerability by crafting a malicious input that causes a denial of service. Exploiting this vulnerability is possible when running Black on untrusted input, or if you habitually put thousands of leading tab characters in your docstrings.
Severity
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-1333 - Regular Expression Denial of Service (ReDoS)
  • CWE-75 - Failure to Sanitize Special Elements into a Different Plane (Special Element Injection)
Assigner
References
Impacted products
Vendor Product Version
n/a black Affected: 0 , < 24.3.0 (semver)
python_software_foundation black Affected: 0 , < 24.3.0 (custom)
    cpe:2.3:a:python_software_foundation:black:*:*:*:*:*:*:*:*
 Create a notification for this product.
Credits
Sajeeb Lohani
Show details on NVD website
To clipboard 

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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.