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TI-2021-02473 Aliases CVE-2021-3514GHSA-4mjm-c95j-8748

NULL pointer dereference in 389-ds-base

Priority LOW 31CWE-476Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Partial Red Hat: 4 fixed, 2 without a fix

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-476.

Summary

When using a sync_repl client in 389-ds-base, an authenticated attacker can cause a NULL pointer dereference using a specially crafted query, causing a crash.

Why it matters now

EPSS 0.012 68th percentileScored 2026-11-07
Fix Partial Red Hat: 4 advisoriesRed Hat: 4 fixed, 2 without a fix

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
—389-ds-base389-ds-base 1.4.3—No fix listedCNA
  • 389-ds-base Vendor— Affected 389-ds-base 1.4.3 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:o:redhat:389_directory_server:-:*:*:*:*:*:*:*not specified by NVDVulnerableRed Hat
  • cpe:2.3:o:redhat:389_directory_server:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Red Hat

Remediation

Red Hat 4 advisories

  • RHSA-2022:0952 Released 2022-03-16 · Red Hat rating Moderate
    redhat-ds:11.3 security and bug fix update
    • Red Hat Directory Server 11.3 for RHEL 8 389-ds-base-1.4.3.22-4.module+el8dsrv+13893+84b6c18c.src::redhat-ds:11, 389-ds-base-1.4.3.22-4.module+el8dsrv+13893+84b6c18c.x86_64::redhat-ds:11, 389-ds-base-devel-1.4.3.22-4.module+el8dsrv+13893+84b6c18c.x86_64::redhat-ds:11 +5
  • RHSA-2021:3955 Released 2021-10-25 · Red Hat rating Low
    redhat-ds:11 security, bug fix, and enhancement update
    • Red Hat Directory Server 11.4 for RHEL 8 389-ds-base-1.4.3.27-2.module+el8dsrv+12690+c6df6d1b.src::redhat-ds:11, 389-ds-base-1.4.3.27-2.module+el8dsrv+12690+c6df6d1b.x86_64::redhat-ds:11, 389-ds-base-devel-1.4.3.27-2.module+el8dsrv+12690+c6df6d1b.x86_64::redhat-ds:11 +5
  • RHSA-2021:2796 Released 2021-07-21 · Red Hat rating Moderate
    389-ds:1.4 security update
    • Red Hat Enterprise Linux AppStream EUS (v. 8.2) 389-ds-base-1.4.2.4-14.module+el8.2.0+11017+0eb5711a.aarch64::389-ds:1.4, 389-ds-base-1.4.2.4-14.module+el8.2.0+11017+0eb5711a.ppc64le::389-ds:1.4, 389-ds-base-1.4.2.4-14.module+el8.2.0+11017+0eb5711a.s390x::389-ds:1.4 +19
Show 1 more Red Hat advisories
  • RHSA-2021:2595 Released 2021-06-29 · Red Hat rating Moderate
    389-ds:1.4 security and bug fix update
    • Red Hat Enterprise Linux AppStream (v. 8) 389-ds-base-1.4.3.16-16.module+el8.4.0+11446+fc96bc48.aarch64::389-ds:1.4, 389-ds-base-1.4.3.16-16.module+el8.4.0+11446+fc96bc48.ppc64le::389-ds:1.4, 389-ds-base-1.4.3.16-16.module+el8.4.0+11446+fc96bc48.s390x::389-ds:1.4 +19

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 6AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux 7AffectedNo fix planned: Out of support scope
Red Hat Directory Server 11.3 for RHEL 8Fixed RHSA-2022:0952
Red Hat Directory Server 11.4 for RHEL 8Fixed RHSA-2021:3955
Red Hat Enterprise Linux AppStream (v. 8)Fixed RHSA-2021:2595
Red Hat Enterprise Linux AppStream EUS (v. 8.2)Fixed RHSA-2021:2796
Not affected: 1 product
  • Red Hat Enterprise Linux 9

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-3514
  2. 2026-10-03 Alias added: GHSA-4mjm-c95j-8748

References

Advisory 1

Other 1

  • TI-2026-13229 Stack-based buffer overflow in Red Hat Directory Server 11.5 E4S for RHEL 8 CVSS 3.1HIGH 7.5
  • TI-2026-07965 Resource allocation without limits in 389-ds-base CVSS 3.1HIGH 7.5
  • TI-2026-10157 389-ds-base: 389-ds-base: pre-auth ldap filter injection in cleanallruv status check CVSS 3.1HIGH 7.5
  • TI-2024-05784 389-ds-base: unauthenticated user can trigger a dos by sending a specific extended search request CVSS 3.1MEDIUM 6.5
  • TI-2022-01808 Authorization bypass in 389-ds-base CVSS 3.1HIGH 7.5
  • TI-2010-02131 NULL pointer dereference in Red Hat Directory Server CVSS 3.1HIGH 7.5
See all 24 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences