CVE-2026-15041

389-ds-base: 389-ds-base: non-constant-time comparison in pbkdf2-sha256 password verification

State
Published
Severity
3.7 Low
Published
Jul 8, 2026
Updated
Jul 8, 2026
Reserved
Jul 8, 2026

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Description

A flaw was found in 389 Directory Server. The PBKDF2-SHA256 password verification function uses standard memcmp() for comparing password hashes instead of a constant-time comparison function. A remote attacker could potentially use timing measurements of LDAP bind attempts to infer partial hash information, though practical exploitation is extremely difficult due to PBKDF2 computational overhead.

Scores

CVSSScoreVectorSource
3.13.7 LowCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:Nredhat

Weaknesses

  • CWE-208 Observable Timing Discrepancy

Affected Products

ProductVersions
Red Hat Directory Server 11Red Hat
    Red Hat Directory Server 12Red Hat
      Red Hat Directory Server 13Red Hat
        Red Hat Enterprise Linux 10Red Hat
          Red Hat Enterprise Linux 6Red Hat
            Red Hat Enterprise Linux 7Red Hat
              Red Hat Enterprise Linux 8Red Hat
                Red Hat Enterprise Linux 9Red Hat

                  References

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