There is a buffer over-read in Ruby before 2.6.10, 2.7.x before 2.7.6, 3.x before 3.0.4, and 3.1.x before 3.1.2. It occurs in String-to-Float conversion, including Kernel#Float and String#to_f.

References

• https://nvd.nist.gov/vuln/detail/CVE-2022-28739
• https://hackerone.com/reports/1248108
• https://security-tracker.debian.org/tracker/CVE-2022-28739
• https://www.ruby-lang.org/en/news/2022/04/12/buffer-overrun-in-string-to-float-cve-2022-28739/
• https://security.netapp.com/advisory/ntap-20220624-0002/
• https://support.apple.com/kb/HT213488
• https://support.apple.com/kb/HT213493
• https://support.apple.com/kb/HT213494
• http://seclists.org/fulldisclosure/2022/Oct/41
• https://lists.debian.org/debian-lts-announce/2023/06/msg00012.html
• http://seclists.org/fulldisclosure/2022/Oct/28
• http://seclists.org/fulldisclosure/2022/Oct/29
• http://seclists.org/fulldisclosure/2022/Oct/30
• http://seclists.org/fulldisclosure/2022/Oct/42
• https://security.gentoo.org/glsa/202401-27