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Fencer Vulns
medium 6.6

CVE-2024-27282 json

An issue was discovered in Ruby 3.x through 3.3.0.

published 2024-05-08 2 y ago modified 2026-06-17 4 mo ago also BIT-ruby-2024-27282 , BIT-ruby-min-2024-27282 , EUVD-2024-24519

cvss
6.6
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.7%
EPSS 0.7% chance of exploitation in 30 days, percentile 51%
public exploits
0
none known

Summary

An issue was discovered in Ruby 3.x through 3.3.0. If attacker-supplied data is provided to the Ruby regex compiler, it is possible to extract arbitrary heap data relative to the start of the text, including pointers and sensitive strings. The fixed versions are 3.0.7, 3.1.5, 3.2.4, and 3.3.1.

Patch / fix

  • bitnami ruby 3.1.5, 3.2.4, 3.3.1
  • bitnami ruby-min 3.1.6, 3.2.6, 3.3.7
  • ruby-lang ruby 3.0.7, 3.1.5, 3.2.4, 3.3.1
  • ruby3.1 Debian 12 3.1.2-7+deb12u1

debian advisories DEBIAN-CVE-2024-27282

  • ruby2.7 Ubuntu 20.04 LTS 2.7.0-5ubuntu1.13
  • ruby3.0 Ubuntu 22.04 LTS 3.0.2-7ubuntu2.6
  • ruby3.2 Ubuntu 24.04 LTS 3.2.3-1ubuntu0.24.04.1
  • ruby2.5 Ubuntu Pro 18.04 LTS 2.5.1-1ubuntu1.16+esm5

ubuntu advisories UBUNTU-CVE-2024-27282

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • ruby4.0 hummingbird 1 4.0.0-33.3.hum1
  • ruby4.0-libs hummingbird 1 4.0.0-33.3.hum1
  • ruby4.0-bundled-gems hummingbird 1 4.0.0-33.3.hum1
  • ruby4.0-default-gems hummingbird 1 4.0.0-33.3.hum1
  • ruby3.3 hummingbird 1 3.3.10-23.1.hum1
  • ruby3.3-libs hummingbird 1 3.3.10-23.1.hum1
  • ruby3.3-bundled-gems hummingbird 1 3.3.10-23.1.hum1
  • ruby3.3-default-gems hummingbird 1 3.3.10-23.1.hum1

red hat advisories RHSA-2026:8838RHSA-2026:7305RHSA-2026:7307RHSA-2024:4499RHSA-2024:3838RHSA-2024:3671

  • ruby AlmaLinux 8 2.5.9-112.module_el8.10.0+3871+342e2c2f
  • ruby-irb AlmaLinux 8 2.5.9-112.module_el8.10.0+3871+342e2c2f
  • rubygems AlmaLinux 8 2.7.6.3-112.module_el8.10.0+3871+342e2c2f
  • ruby-libs AlmaLinux 8 2.5.9-112.module_el8.10.0+3871+342e2c2f
  • rubygem-pg AlmaLinux 8 1.0.0-3.module_el8.9.0+3635+c6f99506
  • rubygem-abrt AlmaLinux 8 0.3.0-4.module_el8.10.0+3871+342e2c2f
  • rubygem-bson AlmaLinux 8 4.3.0-2.module_el8.5.0+2625+ec418553
  • rubygem-bson AlmaLinux 8 4.3.0-2.module_el8.6.0+3170+4b08f9d4

almalinux advisories ALSA-2024:4499ALSA-2024:3838ALSA-2024:3668ALSA-2024:3670ALSA-2024:3671ALSA-2024:3546

  • ruby Rocky Linux 8 2.5.9-112.module+el8.10.0+1839+f1f156ae
  • rubygem-pg Rocky Linux 8 1.0.0-3.module+el8.9.0+1536+5f79634e
  • rubygem-abrt Rocky Linux 8 0.3.0-4.module+el8.5.0+738+032c9c02
  • rubygem-bson Rocky Linux 8 4.3.0-2.module+el8.9.0+1536+5f79634e
  • rubygem-mongo Rocky Linux 8 2.5.1-2.module+el8.9.0+1536+5f79634e
  • rubygem-mysql2 Rocky Linux 8 0.4.10-4.module+el8.9.0+1536+5f79634e
  • rubygem-bundler Rocky Linux 8 1.16.1-4.module+el8.9.0+1536+5f79634e
  • rubygem-pg Rocky Linux 9 1.3.5-1.module+el9.6.0+31865+0893c253

rocky linux advisories RLSA-2024:4499RLSA-2024:3668RLSA-2024:3671RLSA-2024:3546RLSA-2024:3670

  • ruby Alpine 3.17, Alpine 3.16 3.1.5-r0
  • ruby Alpine 3.19, Alpine 3.18 3.2.4-r0
  • ruby Alpine 3.24, Alpine 3.23, Alpine 3.22 +2 more 3.3.1-r0

alpine advisories ALPINE-CVE-2024-27282

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • ruby Azure Linux 3.0 3.3.3-1
  • ruby CBL-Mariner 2.0 3.1.4-5

azure linux advisories AZL-40520AZL-40733

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2024-27282 updated cvss 6.6

ruby: Arbitrary memory address read vulnerability with Regex search

  • Red Hat Enterprise Linux 6 ruby, ruby-ri, ruby-irb, ruby-libs, ruby-rdoc, ruby-tcltk Red Hat Enterprise Linux 7 ruby, ruby-irb, rubygems, ruby-libs, ruby-tcltk, rubygem-json, +6 more
    affected: workaround, no fix planned “Out of support scope”
  • Red Hat Hardened Images ruby
    affected: workaround, no fix available
  • Red Hat Storage 3 ruby, ruby-irb, rubygems, ruby-libs, rubygem-json, rubygem-rake, +11 more
    affected: workaround, no fix planned “Out of support scope”
  • Red Hat Enterprise Linux AppStream (v. 8) ruby 3.3.1-2.module+el8.10.0+21860+47fbda2a, ruby 2.5.9-112.module+el8.10.0+22021+135c76a8, ruby 3.0.7-143.module+el8.10.0+21858+d19f3934, ruby 3.1.5-143.module+el8.10.0+21792+e2f63d26, rubygems 3.5.9-2.module+el8.10.0+21860+47fbda2a, ruby-libs 3.3.1-2.module+el8.10.0+21860+47fbda2a, +86 more
    fixed: vendor fix RHSA-2024:4499
  • Red Hat Enterprise Linux AppStream (v. 9) ruby 3.0.7-162.el9_4, ruby-libs 3.0.7-162.el9_4, rubygems 3.2.33-162.el9_4, rubygem-irb 1.3.5-162.el9_4, rubygem-rbs 1.4.0-162.el9_4, rubygem-rss 0.2.9-162.el9_4, +58 more Red Hat Enterprise Linux CRB (v. 9) ruby-doc 3.0.7-162.el9_4
    fixed: vendor fix RHSA-2024:3838
  • Red Hat Hardened Images ruby3.4 3.4.8-31.1.hum1, ruby4.0 4.0.0-33.3.hum1, ruby3.3 3.3.10-23.1.hum1, ruby3.4-libs 3.4.8-31.1.hum1, ruby4.0-libs 4.0.0-33.3.hum1, ruby3.3-libs 3.3.10-23.1.hum1, +6 more
    fixed: vendor fix RHSA-2026:7305
  • Red Hat Enterprise Linux 10 ruby Red Hat Hardened Images rubygem3.3-rbs 3.4.0-23.1.hum1, rubygem3.3-rss 0.3.1-23.1.hum1, rubygem3.4-rbs 3.8.0-31.1.hum1, rubygem3.4-rss 0.3.1-31.1.hum1, rubygem4.0-rss 0.3.2-33.3.hum1, rubygem3.3-irb 1.13.1-23.1.hum1, +45 more
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
2 y ago

Exploit prediction

0.66% chance of exploitation in the next 30 days, higher than 51% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CISA ADP 3.1 6.6 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:L
CNA 3.1 6.6 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:L
OSV 3.1 6.6 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:L

Affected packages

ecosystem package affected fixed in
bitnami ruby
<3.1.5
>=3.2.0, <3.2.4
>=3.3.0, <3.3.1
3.1.5
3.2.4
3.3.1
bitnami ruby-min
<3.1.6
>=3.2.0, <3.2.6
>=3.3.0, <3.3.7
3.1.6
3.2.6
3.3.7

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.