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fix(deps): update dependency moment to v2.29.4 [security] #4382

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merged 1 commit into from
Sep 1, 2022

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@renovate renovate bot commented Aug 12, 2022

Mend Renovate

This PR contains the following updates:

Package Change Age Adoption Passing Confidence
moment (source) 2.29.3 -> 2.29.4 age adoption passing confidence

GitHub Vulnerability Alerts

CVE-2022-31129

Impact

  • using string-to-date parsing in moment (more specifically rfc2822 parsing, which is tried by default) has quadratic (N^2) complexity on specific inputs
  • noticeable slowdown is observed with inputs above 10k characters
  • users who pass user-provided strings without sanity length checks to moment constructor are vulnerable to (Re)DoS attacks

Patches

The problem is patched in 2.29.4, the patch can be applied to all affected versions with minimal tweaking.

Workarounds

In general, given the proliferation of ReDoS attacks, it makes sense to limit the length of the user input to something sane, like 200 characters or less. I haven't seen legitimate cases of date-time strings longer than that, so all moment users who do pass a user-originating string to constructor are encouraged to apply such a rudimentary filter, that would help with this but also most future ReDoS vulnerabilities.

References

There is an excellent writeup of the issue here: https://github.com/moment/moment/pull/6015#issuecomment-1152961973=

Details

The issue is rooted in the code that removes legacy comments (stuff inside parenthesis) from strings during rfc2822 parsing. moment("(".repeat(500000)) will take a few minutes to process, which is unacceptable.


Release Notes

moment/moment

v2.29.4

Compare Source

  • Release Jul 6, 2022
    • #​6015 [bugfix] Fix ReDoS in preprocessRFC2822 regex

Configuration

📅 Schedule: Branch creation - "" (UTC), Automerge - At any time (no schedule defined).

🚦 Automerge: Enabled.

Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

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This PR has been generated by Mend Renovate. View repository job log here.

@renovate renovate bot added the renovate label Aug 12, 2022
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Coverage report

Total coverage

Status Category Percentage Covered / Total
🔴 Statements 9.11% 162/1779
🔴 Branches 6.95% 67/964
🔴 Functions 9.01% 50/555
🔴 Lines 13.15% 677/5150

Status of coverage: 🟢 - ok, 🟡 - slightly more than threshold, 🔴 - under the threshold

Report generated by 🧪jest coverage report action from fcc343b

@fuzzylogic2000 fuzzylogic2000 merged commit 2a4f095 into main Sep 1, 2022
@fuzzylogic2000 fuzzylogic2000 deleted the renovate/npm-moment-vulnerability branch September 1, 2022 12:29
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