Bug 2319033 (CVE-2024-47889) - CVE-2024-47889 rubygem-actionmailer: Possible ReDoS vulnerability in block_format in Action Mailer
Summary: CVE-2024-47889 rubygem-actionmailer: Possible ReDoS vulnerability in block_fo...
Keywords:
Status: NEW
Alias: CVE-2024-47889
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On: 2319062 2319063
Blocks:
TreeView+ depends on / blocked
 
Reported: 2024-10-16 01:01 UTC by OSIDB Bzimport
Modified: 2024-12-06 06:18 UTC (History)
19 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

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Description OSIDB Bzimport 2024-10-16 01:01:37 UTC 
There is a possible ReDoS vulnerability in the block_format helper in Action Mailer. This vulnerability has been assigned the CVE identifier CVE-2024-47889.

Impact
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Carefully crafted text can cause the block_format helper to take an unexpected amount of time, possibly resulting in a DoS vulnerability. All users running an affected release should either upgrade or apply the relevant patch immediately.

Ruby 3.2 has mitigations for this problem, so Rails applications using Ruby 3.2 or newer are unaffected. Rails 8.0.0.beta1 requires Ruby 3.2 or greater so is unaffected.


Releases
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The fixed releases are available at the normal locations.

Workarounds
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Users can avoid calling the `block_format` helper or upgrade to Ruby 3.2

Credits
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Thanks to [ooooooo_q](https://hackerone.com/ooooooo_q) for the report!
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