CVE-2024-47889

Advisory lineage Upstream: 0 Downstream: 10
Deferred
Published: 16 Oct 2024, 20:55
Last modified:17 Oct 2024, 16:31

Vulnerability Summary

Overall Risk (default)
medium
26/100
CVSS Score
6.6 MEDIUM
v4.0 (cve.org)
EPSS Score
0.32% LOW
0% probability +0.06%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

16 Oct 2024, 20:55
Published
Vulnerability first disclosed
17 Oct 2024, 16:31
Last Modified
Vulnerability information updated

Description

Action Mailer is a framework for designing email service layers. Starting in version 3.0.0 and prior to versions 6.1.7.9, 7.0.8.5, 7.1.4.1, and 7.2.1.1, there is a possible ReDoS vulnerability in the block_format helper in Action Mailer. 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 to versions 6.1.7.9, 7.0.8.5, 7.1.4.1, or 7.2.1.1 or apply the relevant patch immediately. As a workaround, users can avoid calling the `block_format` helper or upgrade to Ruby 3.2. 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.

CVSS Metrics

  • v4.0•MEDIUM•Score: 6.6CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U
  • v4.0•MEDIUM•Score: 6.6CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS Trends

Current EPSS score: 0.32%• Percentile: 55%

Techniques & Countermeasures

  • CWE-1333•Inefficient Regular Expression Complexity

    The product uses a regular expression with a worst-case computational complexity that is inefficient and possibly exponential.

Affected Systems

  • rails•rails

    ≥ 3.0.0, < 6.1.7.9 | ≥ 7.0.0, < 7.0.8.5 | ≥ 7.1.0, < 7.1.4.1 | ≥ 7.2.0, < 7.2.1.1

References (5)