BIT-ruby-2020-10933

BIT-ruby-2020-10933 PUBLISHED CVSS 5.300000190734863 MEDIUM

Record from OSV · Published March 6, 2024

An issue was discovered in Ruby 2.5.x through 2.5.7, 2.6.x through 2.6.5, and 2.7.0. If a victim calls BasicSocket#read_nonblock(requested_size, buffer, exception: false), the method resizes the buffer to fit the requested size, but no data is copied. Thus, the buffer string provides the previous value of the heap. This may expose possibly sensitive data from the interpreter.

Fixed versions

Upgrade to a fixed version or later. Language registries are listed first, then Linux distributions, then vendor products.

Package	Ecosystem	Fixed in
ruby	Bitnami	2.7.1, 2.6.6, 2.5.8

Risk scores

CVSS 3.1

5.300000190734863

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

Affected products

Vendor	Product	Versions
Bitnami	ruby	2.5.0, 2.6.0, 2.7.0

Timeline

Mar 6, 2024 CVE Published
Apr 3, 2025 CVE Updated
May 6, 2026 Distribution Patch

Query this with the API

The same record, from the CLI:

vulnetix vdb vuln BIT-ruby-2020-10933
vulnetix vdb fixes BIT-ruby-2020-10933

Or with curl, using the org id and key from your account page:

curl -s -H "Authorization: ApiKey ${VULNETIX_ORG_ID}:${VULNETIX_API_KEY}" \
  "https://api.vdb.vulnetix.com/v2/vuln/BIT-ruby-2020-10933/fixes/registry"

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References

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