CVE-2024-27280

Publication date 14 May 2024

Last updated 15 September 2025

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

9.8 · Critical

Score breakdown

A buffer-overread issue was discovered in StringIO 3.0.1, as distributed in Ruby 3.0.x through 3.0.6 and 3.1.x through 3.1.4. The ungetbyte and ungetc methods on a StringIO can read past the end of a string, and a subsequent call to StringIO.gets may return the memory value. 3.0.3 is the main fixed version; however, for Ruby 3.0 users, a fixed version is stringio 3.0.1.1, and for Ruby 3.1 users, a fixed version is stringio 3.0.1.2.

Read the notes from the security team

Status

Package Ubuntu Release Status
ruby2.3 25.04 plucky Not in release
24.10 oracular Not in release
24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
16.04 LTS xenial
Needs evaluation
ruby2.5 25.04 plucky Not in release
24.10 oracular Not in release
24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
18.04 LTS bionic
Fixed 2.5.1-1ubuntu1.16+esm5
ruby2.7 25.04 plucky Not in release
24.10 oracular Not in release
24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy Not in release
20.04 LTS focal
Fixed 2.7.0-5ubuntu1.14
ruby3.0 25.04 plucky Not in release
24.10 oracular Not in release
24.04 LTS noble Not in release
23.10 mantic Not in release
22.04 LTS jammy
Fixed 3.0.2-7ubuntu2.7
20.04 LTS focal Not in release
ruby3.1 25.04 plucky Not in release
24.10 oracular Not in release
24.04 LTS noble Not in release
23.10 mantic
Fixed 3.1.2-7ubuntu3.3
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
ruby3.2 25.04 plucky Not in release
24.10 oracular Not in release
24.04 LTS noble
Not affected
23.10 mantic Not in release
22.04 LTS jammy Not in release
20.04 LTS focal Not in release
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release

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Notes

mdeslaur

commit in 3.0.1.2 appears to be a bug fix which is unrelated to this CVE.

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
ruby3.1

Severity score breakdown

Parameter Value
Base score 9.8 · Critical
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

Related Ubuntu Security Notices (USN)

Other references