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skygate / skyexpo-matchmaking

The matchmaking app for skyexpo AI 2020
http://skyexpo.hal.skygate.io/
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[Security] Bump bleach from 3.1.1 to 3.1.4 in /backend #174

Closed dependabot-preview[bot] closed 4 years ago

dependabot-preview[bot] commented 4 years ago

Bumps bleach from 3.1.1 to 3.1.4. This update includes security fixes.

Vulnerabilities fixed

Sourced from The GitHub Security Advisory Database.

Moderate severity vulnerability that affects bleach

Impact

bleach.clean behavior parsing style attributes could result in a regular expression denial of service (ReDoS).

Calls to bleach.clean with an allowed tag with an allowed style attribute are vulnerable to ReDoS. For example, bleach.clean(..., attributes={'a': ['style']}).

Patches

3.1.4

Workarounds

  • do not whitelist the style attribute in bleach.clean calls

  • limit input string length

References

... (truncated)

Affected versions: < 3.1.4

Sourced from The GitHub Security Advisory Database.

Moderate severity vulnerability that affects bleach

Impact

A mutation XSS affects users calling bleach.clean with all of:

  • the svg or math in the allowed/whitelisted tags
  • an RCDATA tag (see below) in the allowed/whitelisted tags
  • the keyword argument strip=False

Patches

Users are encouraged to upgrade to bleach v3.1.2 or greater.

Workarounds

  • modify bleach.clean calls to use strip=True, or not whitelist math or svg tags and one or more of the following tags:
script
noscript
style
</tr></table> ... (truncated)

Affected versions: < 3.1.2

Changelog

Sourced from bleach's changelog.

Version 3.1.4 (March 24th, 2020)

Security fixes

  • bleach.clean behavior parsing style attributes could result in a regular expression denial of service (ReDoS).

    Calls to bleach.clean with an allowed tag with an allowed style attribute were vulnerable to ReDoS. For example, bleach.clean(..., attributes={'a': ['style']}).

    This issue was confirmed in Bleach versions v3.1.3, v3.1.2, v3.1.1, v3.1.0, v3.0.0, v2.1.4, and v2.1.3. Earlier versions used a similar regular expression and should be considered vulnerable too.

    Anyone using Bleach <=v3.1.3 is encouraged to upgrade.

    https://bugzilla.mozilla.org/show_bug.cgi?id=1623633

Backwards incompatible changes

  • Style attributes with dashes, or single or double quoted values are cleaned instead of passed through.

Features

None

Bug fixes

None

Version 3.1.3 (March 17th, 2020)

Security fixes

None

Backwards incompatible changes

None

Features

  • Add relative link to code of conduct. (#442)

  • Drop deprecated 'setup.py test' support. (#507)

... (truncated)
Commits


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dependabot-preview[bot] commented 4 years ago

OK, I won't notify you again about this release, but will get in touch when a new version is available. If you'd rather skip all updates until the next major or minor version, let me know by commenting @dependabot ignore this major version or @dependabot ignore this minor version.

If you change your mind, just re-open this PR and I'll resolve any conflicts on it.