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CVE-2022-28739

HIGHCVSS 7.5/10EPSS 3.87%

Last modified

CVE-2022-28739 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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.. EPSS estimates a 3.87% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1
7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS Probability
3.87%

88.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
Ruby-LangRuby< 2.6.10
Ruby-LangRuby>= 2.7.0, < 2.7.6
Ruby-LangRuby>= 3.0.0, < 3.0.4
Ruby-LangRuby>= 3.1.0, < 3.1.2
DebianDebian Linux9.0
DebianDebian Linux10.0
DebianDebian Linux11.0
AppleMacos>= 11.0, < 11.7.1
AppleMacos>= 12.0, < 12.6.1

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2022-28739?
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.
How severe is CVE-2022-28739?
CVE-2022-28739 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 3.87% probability of exploitation in the next 30 days.
How do I fix CVE-2022-28739?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-28739?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST