Bumps moment from 2.29.3 to 2.29.4. This update includes a security fix.
Vulnerabilities fixed
Inefficient Regular Expression Complexity in moment
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.
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.
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Bumps [moment](https://github.com/moment/moment) from 2.29.3 to 2.29.4. **This update includes a security fix.**
<details>
<summary>Vulnerabilities fixed</summary>
<blockquote>
<p><strong>Inefficient Regular Expression Complexity in moment</strong></p>
<h3>Impact</h3>
<ul>
<li>using string-to-date parsing in moment (more specifically rfc2822 parsing, which is tried by default) has quadratic (N^2) complexity on specific inputs</li>
<li>noticeable slowdown is observed with inputs above 10k characters</li>
<li>users who pass user-provided strings without sanity length checks to moment constructor are vulnerable to (Re)DoS attacks</li>
</ul>
<h3>Patches</h3>
<p>The problem is patched in 2.29.4, the patch can be applied to all affected versions with minimal tweaking.</p>
<h3>Workarounds</h3>
<p>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.</p>
<h3>References</h3>
<p>There is an excellent writeup of the issue here: <a href="https://github.com/moment/moment/pull/6015#issuecomment-1152961973=">moment/moment#6015</a></p>
<h3>Details</h3>
<p>The issue is rooted in the code that removes legacy comments (stuff inside parenthesis) from strings during rfc2822 parsing. <code>moment("(".repeat(500000))</code> will take a few minutes to process, which is unacceptable.</p>
<p>Patched versions: 2.29.4
Affected versions: >= 2.18.0, < 2.29.4</p>
</blockquote>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a href="https://github.com/moment/moment/blob/develop/CHANGELOG.md">moment's changelog</a>.</em></p>
<blockquote>
<h3>2.29.4</h3>
<ul>
<li>Release Jul 6, 2022
<ul>
<li><a href="https://github.com/moment/moment/pull/6015">#6015</a> [bugfix] Fix ReDoS in preprocessRFC2822 regex</li>
</ul>
</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a href="https://github.com/moment/moment/commit/000ac1800e620f770f4eb31b5ae908f6167b0ab2"><code>000ac18</code></a> Build 2.24.4</li>
<li><a href="https://github.com/moment/moment/commit/f2006b647939466f4f403721b8c7816d844c038c"><code>f2006b6</code></a> Bump version to 2.24.4</li>
<li><a href="https://github.com/moment/moment/commit/536ad0c348f2f99009755698f491080757a48221"><code>536ad0c</code></a> Update changelog for 2.29.4</li>
<li><a href="https://github.com/moment/moment/commit/9a3b5894f3d5d602948ac8a02e4ee528a49ca3a3"><code>9a3b589</code></a> [bugfix] Fix redos in preprocessRFC2822 regex (<a href="https://github.com/moment/moment/issues/6015">#6015</a>)</li>
<li><a href="https://github.com/moment/moment/commit/6374fd860aeff75e6c9d9d11540c6b22bc7ef175"><code>6374fd8</code></a> Merge branch 'master' into develop</li>
<li><a href="https://github.com/moment/moment/commit/b4e615307ee350b58ac9899e3587ce43972b0753"><code>b4e6153</code></a> Revert "[bugfix] Fix redos in preprocessRFC2822 regex (<a href="https://github.com/moment/moment/issues/6015">#6015</a>)"</li>
<li><a href="https://github.com/moment/moment/commit/7aebb1617fc9bced87ab6bc4c317644019b23ce7"><code>7aebb16</code></a> [bugfix] Fix redos in preprocessRFC2822 regex (<a href="https://github.com/moment/moment/issues/6015">#6015</a>)</li>
<li>See full diff in <a href="https://github.com/moment/moment/compare/2.29.3...2.29.4">compare view</a></li>
</ul>
</details>
<br />
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</details>
argoyle
(Migrated from gitlab.com)
merged commit into master2022-07-07 05:27:07 +00:00
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Bumps moment from 2.29.3 to 2.29.4. This update includes a security fix.
Vulnerabilities fixed
Changelog
Sourced from moment's changelog.
Commits
000ac18Build 2.24.4f2006b6Bump version to 2.24.4536ad0cUpdate changelog for 2.29.49a3b589[bugfix] Fix redos in preprocessRFC2822 regex (#6015)6374fd8Merge branch 'master' into developb4e6153Revert "[bugfix] Fix redos in preprocessRFC2822 regex (#6015)"7aebb16[bugfix] Fix redos in preprocessRFC2822 regex (#6015)Dependabot commands
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