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[Security] Bump urllib3 from 1.25.7 to 1.25.8 #107

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Bumps urllib3 from 1.25.7 to 1.25.8. This update includes a security fix.

Vulnerabilities fixed

Sourced from The GitHub Security Advisory Database.

Uncontrolled Resource Consumption in urllib3 The _encode_invalid_chars function in util/url.py in the urllib3 library 1.25.2 through 1.25.7 for Python allows a denial of service (CPU consumption) because of an inefficient algorithm. The percent_encodings array contains all matches of percent encodings. It is not deduplicated. For a URL of length N, the size of percent_encodings may be up to O(N). The next step (normalize existing percent-encoded bytes) also takes up to O(N) for each step, so the total time is O(N^2). If percent_encodings were deduplicated, the time to compute _encode_invalid_chars would be O(kN), where k is at most 484 ((10+6*2)^2).

Affected versions: >= 1.25.2, <= 1.25.7

Release notes

Sourced from urllib3's releases.

1.25.8

Release: 1.25.8

Changelog

Sourced from urllib3's changelog.

1.25.8 (2020-01-20)

  • Drop support for EOL Python 3.4 (Pull #1774)
  • Optimize _encode_invalid_chars (Pull #1787)
Commits
  • 2a57bc5 Release 1.25.8 (#1788)
  • a2697e7 Optimize _encode_invalid_chars (#1787)
  • d2a5a59 Move IPv6 test skips in server fixtures
  • d44f0e5 Factorize test certificates serialization
  • 84abc7f Generate IPV6 certificates using trustme
  • 6a15b18 Run IPv6 Tornado server from fixture
  • 4903840 Use trustme to generate IP_SAN cert
  • 9971e27 Empty responses should have no lines.
  • 62ef68e Use trustme to generate NO_SAN certs
  • fd2666e Use fixture to configure NO_SAN test certs
  • Additional commits viewable in compare view

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Bumps [urllib3](https://github.com/urllib3/urllib3) from 1.25.7 to 1.25.8. **This update includes a security fix.**
- [Release notes](https://github.com/urllib3/urllib3/releases)
- [Changelog](https://github.com/urllib3/urllib3/blob/main/CHANGES.rst)
- [Commits](urllib3/urllib3@1.25.7...1.25.8)

Signed-off-by: dependabot-preview[bot] <[email protected]>
@dependabot-preview dependabot-preview bot added dependencies Pull requests that update a dependency file security Pull requests that address a security vulnerability labels Apr 30, 2021
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