Action Mailer has possible ReDoS vulnerability in block_format
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 6.1.7.9, 7.0.8.5, 7.1.4.1, 7.2.1.1
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
- Exploitation: none
- Automatable: yes
- Technical impact: partial
Summary
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.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: yes · Technical impact: partial
- Record last updated
Affected versions
- rails rails
From 3.0.0 · fixed in 6.1.7.9; From 7.0.0 · fixed in 7.0.8.5; From 7.1.0 · fixed in 7.1.4.1; From 7.2.0 · fixed in 7.2.1.1
- actionmailerRubyGems
From 3.0.0 · fixed in 6.1.7.9
- actionmailerRubyGems
From 7.0.0 · fixed in 7.0.8.5
- actionmailerRubyGems
From 7.1.0 · fixed in 7.1.4.1
- actionmailerRubyGems
From 7.2.0 · fixed in 7.2.1.1