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Red Hat: CVE-2023-31147: Insufficient randomness in generation of DNS query IDs (Multiple Advisories)

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Red Hat: CVE-2023-31147: Insufficient randomness in generation of DNS query IDs (Multiple Advisories)

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
05/25/2023
Created
06/15/2023
Added
06/15/2023
Modified
12/15/2023

Description

c-ares is an asynchronous resolver library. When /dev/urandom or RtlGenRandom() are unavailable, c-ares uses rand() to generate random numbers used for DNS query ids. This is not a CSPRNG, and it is also not seeded by srand() so will generate predictable output. Input from the random number generator is fed into a non-compilant RC4 implementation and may not be as strong as the original RC4 implementation. No attempt is made to look for modern OS-provided CSPRNGs like arc4random() that is widely available. This issue has been fixed in version 1.19.1.

Solution(s)

  • redhat-upgrade-c-ares
  • redhat-upgrade-c-ares-debuginfo
  • redhat-upgrade-c-ares-debugsource
  • redhat-upgrade-c-ares-devel
  • redhat-upgrade-nodejs
  • redhat-upgrade-nodejs-debuginfo
  • redhat-upgrade-nodejs-debugsource
  • redhat-upgrade-nodejs-devel
  • redhat-upgrade-nodejs-docs
  • redhat-upgrade-nodejs-full-i18n
  • redhat-upgrade-nodejs-libs
  • redhat-upgrade-nodejs-libs-debuginfo
  • redhat-upgrade-nodejs-nodemon
  • redhat-upgrade-nodejs-packaging
  • redhat-upgrade-nodejs-packaging-bundler
  • redhat-upgrade-npm

References

  • CVE-2023-31147
  • RHSA-2023:3577
  • RHSA-2023:3586
  • RHSA-2023:4033
  • RHSA-2023:4034
  • RHSA-2023:4035
  • RHSA-2023:4036
  • RHSA-2023:6635
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