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  5. CVE-2024-9355

CVE-2024-9355: Golang FIPS OpenSSL has a Use of Uninitialized Variable vulnerability

October 1, 2024 (updated September 21, 2026)

A vulnerability was found in Golang FIPS OpenSSL. This flaw allows a malicious user to randomly cause an uninitialized buffer length variable with a zeroed buffer to be returned in FIPS mode. It may also be possible to force a false positive match between non-equal hashes when comparing a trusted computed hmac sum to an untrusted input sum if an attacker can send a zeroed buffer in place of a pre-computed sum.  It is also possible to force a derived key to be all zeros instead of an unpredictable value.  This may have follow-on implications for the Go TLS stack.

References

  • access.redhat.com/errata/RHSA-2024:10133
  • access.redhat.com/errata/RHSA-2024:7502
  • access.redhat.com/errata/RHSA-2024:7550
  • access.redhat.com/errata/RHSA-2024:8327
  • access.redhat.com/errata/RHSA-2024:8678
  • access.redhat.com/errata/RHSA-2024:8847
  • access.redhat.com/errata/RHSA-2024:9551
  • access.redhat.com/errata/RHSA-2025:2416
  • access.redhat.com/errata/RHSA-2025:7118
  • access.redhat.com/errata/RHSA-2025:7256
  • access.redhat.com/errata/RHSA-2025:7624
  • access.redhat.com/errata/RHSA-2026:55520
  • access.redhat.com/errata/RHSA-2026:55525
  • access.redhat.com/errata/RHSA-2026:59439
  • access.redhat.com/errata/RHSA-2026:66016
  • access.redhat.com/errata/RHSA-2026:68504
  • access.redhat.com/errata/RHSA-2026:69235
  • access.redhat.com/security/cve/CVE-2024-9355
  • bugzilla.redhat.com/show_bug.cgi?id=2315719
  • github.com/advisories/GHSA-3h3x-2hwv-hr52
  • github.com/github/advisory-database/pull/4950
  • github.com/golang-fips/openssl/pull/198
  • nvd.nist.gov/vuln/detail/CVE-2024-9355
  • pkg.go.dev/vuln/GO-2024-3167

Code Behaviors & Features

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Affected versions

All versions up to 2.0.3

Solution

Unfortunately, there is no solution available yet.

Impact 6.5 MEDIUM

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

Learn more about CVSS

Weakness

  • CWE-457: Use of Uninitialized Variable

Source file

go/github.com/golang-fips/openssl/CVE-2024-9355.yml

Spotted a mistake? Edit the file on GitLab.

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