CVE-2024-27280

Description

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.

How to fix CVE-2024-27280

To remediate CVE-2024-27280, upgrade the affected package to a fixed version below.

• —upgrade to 3.1.5-r0 or later
• —upgrade to 2.7.4-1+deb11u2 or later
• —upgrade to 3.1.2-7+deb12u1 or later
• —upgrade to 3.1.2-7+deb12u1 or later
• —upgrade to 3.0.1.1 or later

Is CVE-2024-27280 being exploited?

Moderate — EPSS is 8.8%. Track this CVE but it's not at the top of the prioritisation list.

Affected packages (5)

• from 0, < 3.1.5-r0
• from 0, < 2.7.4-1+deb11u2
• from 0, < 3.1.2-7+deb12u1
• from 0, < 3.1.2-7+deb12u1
• from 0, < 3.0.1.1

CVSS scores

References (16)

• ADVISORYnvd.nist.gov/vuln/detail/CVE-2024-27280
• ADVISORYsecurity.alpinelinux.org/vuln/CVE-2024-27280
• ADVISORYsecurity-tracker.debian.org/tracker/CVE-2024-27280
• PATCHgithub.com/ruby/stringio
• WEB