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TI-2019-02893 Aliases CVE-2019-3883GHSA-c65q-p9xj-798w

In 389-ds-base up to version 1.4.1.2, requests are handled by workers threads.

Priority MEDIUM 44CWE-772Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Partial Red Hat: 9 fixed, 1 without a fix

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-772.

Summary

In 389-ds-base up to version 1.4.1.2, requests are handled by workers threads. Each sockets will be waited by the worker for at most 'ioblocktimeout' seconds. However this timeout applies only for un-encrypted requests. Connections using SSL/TLS are not taking this timeout into account during reads, and may hang longer.An unauthenticated attacker could repeatedly create hanging LDAP requests to hang all the workers, resulting in a Denial of Service.

Why it matters now

EPSS 0.08202 94th percentileScored 2026-11-07
Fix Partial Red Hat: 2 advisoriesRed Hat: 9 fixed, 1 without a fix

SSVC decision points

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

Affected products

VendorProductAffected versionsFixed inStatusSource
Red Hat389-ds-baseaffects up to 1.4.1.2—No fix listedCNA
  • 389-ds-base VendorRed Hat Affected affects up to 1.4.1.2 Fixed in — No fix listed CNA

CPE configurations NVD · 3

CPEVersionsRoleVendor
cpe:2.3:a:fedoraproject:389_directory_server:*:*:*:*:*:*:*:*up to 1.4.1.2VulnerableFedoraproject
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*8.0VulnerableDebian
cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*6.0VulnerableRed Hat
  • cpe:2.3:a:fedoraproject:389_directory_server:*:*:*:*:*:*:*:* Versions up to 1.4.1.2 Vulnerable ·Fedoraproject
  • cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Debian
  • cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:* Versions 6.0 Vulnerable ·Red Hat

Remediation

Red Hat 2 advisories

  • RHSA-2019:3401 Released 2019-11-05 · Red Hat rating Important
    389-ds:1.4 security, bug fix, and enhancement update
    • Red Hat Enterprise Linux AppStream (v. 8) 389-ds-base-1.4.1.3-7.module+el8.1.0+4150+5b8c2c1f.aarch64::389-ds:1.4, 389-ds-base-1.4.1.3-7.module+el8.1.0+4150+5b8c2c1f.ppc64le::389-ds:1.4, 389-ds-base-1.4.1.3-7.module+el8.1.0+4150+5b8c2c1f.s390x::389-ds:1.4 +19
  • RHSA-2019:1896 Released 2019-07-29 · Red Hat rating Moderate
    389-ds-base security and bug fix update
    • Red Hat Enterprise Linux Client Optional (v. 7) 389-ds-base-1.3.8.4-25.1.el7_6, 389-ds-base-devel-1.3.8.4-25.1.el7_6, 389-ds-base-libs-1.3.8.4-25.1.el7_6 +1
    • Red Hat Enterprise Linux ComputeNode Optional (v. 7) 389-ds-base-1.3.8.4-25.1.el7_6, 389-ds-base-devel-1.3.8.4-25.1.el7_6, 389-ds-base-libs-1.3.8.4-25.1.el7_6 +1
    • Red Hat Enterprise Linux Server (v. 7) 389-ds-base-1.3.8.4-25.1.el7_6, 389-ds-base-libs-1.3.8.4-25.1.el7_6
    • Red Hat Enterprise Linux Server Optional (v. 7) 389-ds-base-1.3.8.4-25.1.el7_6, 389-ds-base-devel-1.3.8.4-25.1.el7_6, 389-ds-base-libs-1.3.8.4-25.1.el7_6 +1
    • Red Hat Enterprise Linux Workstation (v. 7) 389-ds-base-1.3.8.4-25.1.el7_6, 389-ds-base-libs-1.3.8.4-25.1.el7_6
    • Red Hat Enterprise Linux Workstation Optional (v. 7) 389-ds-base-devel-1.3.8.4-25.1.el7_6, 389-ds-base-snmp-1.3.8.4-25.1.el7_6
    • Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7) 389-ds-base-1.3.8.4-25.1.el7_6, 389-ds-base-libs-1.3.8.4-25.1.el7_6
    • Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7) 389-ds-base-1.3.8.4-25.1.el7_6, 389-ds-base-devel-1.3.8.4-25.1.el7_6, 389-ds-base-libs-1.3.8.4-25.1.el7_6 +1

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: Will not fix
Red Hat Enterprise Linux AppStream (v. 8)Fixed RHSA-2019:3401
Red Hat Enterprise Linux Client Optional (v. 7)Fixed RHSA-2019:1896
Red Hat Enterprise Linux ComputeNode Optional (v. 7)Fixed RHSA-2019:1896
Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2019:1896
Red Hat Enterprise Linux Server Optional (v. 7)Fixed RHSA-2019:1896
Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2019:1896
Red Hat Enterprise Linux Workstation Optional (v. 7)Fixed RHSA-2019:1896
Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7)Fixed RHSA-2019:1896
Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7)Fixed RHSA-2019:1896

Timeline

  1. 2026-10-02 Threatist record created from CVE-2019-3883
  2. 2026-10-03 Alias added: GHSA-c65q-p9xj-798w

References

Advisory 6

Other 1

  • TI-2019-08259 Underflow in PHP-FPM can lead to RCE KEVCVSS 3.1CRITICAL 9.8
  • TI-2018-10530 Code injection in [UNKNOWN] RichFaces KEVCVSS 3.1CRITICAL 9.8
  • TI-2014-05975 GNU Bash through 4.3 bash43-025 processes trailing strings after certain malformed… KEVCVSS 3.1CRITICAL 9.8
  • TI-2014-05157 GNU Bash through 4.3 processes trailing strings after function definitions in the values… KEVCVSS 3.1CRITICAL 9.8
  • TI-2025-23530 Sudo before 1.9.17p1 allows local users to obtain root access because /etc/nsswitch.conf… KEVCVSS 3.1CRITICAL 9.3
  • TI-2021-17490 mod_proxy SSRF KEVCVSS 3.1CRITICAL 9.0
See all 1955 →

Sources

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