CVE-2020-10933

Published on: 05/04/2020 12:00:00 AM UTC

Last Modified on: 07/21/2021 11:39:00 AM UTC

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

Certain versions of Linux Kernel from Linux contain the following vulnerability:

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.

  • CVE-2020-10933 has been assigned by URL Logo [email protected] to track the vulnerability - currently rated as MEDIUM severity.

CVSS3 Score: 5.3 - MEDIUM

Attack
Vector
Attack
Complexity
Privileges
Required
User
Interaction
NETWORK LOW NONE NONE
Scope Confidentiality
Impact
Integrity
Impact
Availability
Impact
UNCHANGED LOW NONE NONE

CVSS2 Score: 5 - MEDIUM

Access
Vector
Access
Complexity
Authentication
NETWORK LOW NONE
Confidentiality
Impact
Integrity
Impact
Availability
Impact
PARTIAL NONE NONE

CVE References

Description Tags Link
CVE-2020-10933 Ruby Vulnerability in NetApp Products | NetApp Product Security security.netapp.com
text/html
URL Logo CONFIRM security.netapp.com/advisory/ntap-20200625-0001/
Debian -- Security Information -- DSA-4721-1 ruby2.5 www.debian.org
Depreciated Link
text/html
URL Logo DEBIAN DSA-4721
CVE-2020-10933: Heap exposure vulnerability in the socket library Exploit
Vendor Advisory
www.ruby-lang.org
text/html
URL Logo CONFIRM www.ruby-lang.org/en/news/2020/03/31/heap-exposure-in-socket-cve-2020-10933/
[SECURITY] Fedora 31 Update: ruby-2.6.6-125.fc31 - package-announce - Fedora Mailing-Lists lists.fedoraproject.org
text/html
URL Logo FEDORA FEDORA-2020-a95706b117

Related QID Numbers

  • 159290 Oracle Enterprise Linux Security Update for ruby:2.5 (ELSA-2021-2587)
  • 159298 Oracle Enterprise Linux Security Update for ruby:2.6 (ELSA-2021-2588)
  • 198302 Ubuntu Security Notification for Ruby2.3, Ruby2.5, Ruby2.7 Vulnerabilities (USN-4882-1)
  • 239350 Red Hat Update for rh-ruby25-ruby (RHSA-2021:2104)
  • 239368 Red Hat Update for rh-ruby26-ruby (RHSA-2021:2230)
  • 239461 Red Hat Update for ruby:2.6 (RHSA-2021:2588)
  • 239462 Red Hat Update for ruby:2.5 (RHSA-2021:2587)
  • 900069 CBL-Mariner Linux Security Update for ruby 2.6.3
  • 940189 AlmaLinux Security Update for ruby:2.6 (ALSA-2021:2588)
  • 940401 AlmaLinux Security Update for ruby:2.5 (ALSA-2021:2587)
  • 960022 Rocky Linux Security Update for ruby:2.6 (RLSA-2021:2588)
  • 960064 Rocky Linux Security Update for ruby:2.5 (RLSA-2021:2587)

Known Affected Configurations (CPE V2.3)

Type Vendor Product Version Update Edition Language
Operating
System
LinuxLinux Kernel-AllAllAll
Operating
System
LinuxLinux Kernel-AllAllAll
ApplicationRuby-langRuby2.7.0AllAllAll
ApplicationRuby-langRuby2.7.0AllAllAll
ApplicationRuby-langRubyAllAllAllAll
ApplicationRuby-langRubyAllAllAllAll
  • cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*:
  • cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*:
  • cpe:2.3:a:ruby-lang:ruby:2.7.0:*:*:*:*:*:*:*:
  • cpe:2.3:a:ruby-lang:ruby:2.7.0:*:*:*:*:*:*:*:
  • cpe:2.3:a:ruby-lang:ruby:*:*:*:*:*:*:*:*:
  • cpe:2.3:a:ruby-lang:ruby:*:*:*:*:*:*:*:*:
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