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TI-2020-01666 Aliases CVE-2020-1722GHSA-mvj3-pw74-8w47

Uncontrolled resource consumption in Red Hat ipa

Priority LOW 26CWE-400Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
High
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Partial Red Hat: 7 fixed, 1 without a fix

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-400.

Summary

A flaw was found in all ipa versions 4.x.x through 4.8.0. When sending a very long password (>= 1,000,000 characters) to the server, the password hashing process could exhaust memory and CPU leading to a denial of service and the website becoming unresponsive. The highest threat from this vulnerability is to system availability.

Why it matters now

EPSS 0.01073 65th percentileScored 2026-11-07
Fix Partial Red Hat: 2 advisoriesRed Hat: 7 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 Hatipaall ipa versions 4.x.x through 4.8.0—No fix listedCNA
  • ipa VendorRed Hat Affected all ipa versions 4.x.x through 4.8.0 Fixed in — No fix listed CNA

CPE configurations NVD · 4

CPEVersionsRoleVendor
cpe:2.3:a:freeipa:freeipa:*:*:*:*:*:*:*:*4.0.0 – 4.8.0VulnerableFreeIPA
cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*6.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*7.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*8.0VulnerableRed Hat
  • cpe:2.3:a:freeipa:freeipa:*:*:*:*:*:*:*:* Versions 4.0.0 – 4.8.0 Vulnerable ·FreeIPA
  • cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:* Versions 6.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Red Hat

Remediation

Red Hat 2 advisories

  • RHSA-2020:4670 Released 2020-11-04 · Red Hat rating Moderate
    idm:DL1 and idm:client security, bug fix, and enhancement update
    • Red Hat Enterprise Linux AppStream (v. 8) bind-dyndb-ldap-11.3-1.module+el8.3.0+6993+104f8db0.aarch64::idm:DL1, bind-dyndb-ldap-11.3-1.module+el8.3.0+6993+104f8db0.ppc64le::idm:DL1, bind-dyndb-ldap-11.3-1.module+el8.3.0+6993+104f8db0.s390x::idm:DL1 +47
  • RHSA-2020:3936 Released 2020-09-29 · Red Hat rating Moderate
    ipa security, bug fix, and enhancement update
    • Red Hat Enterprise Linux Client (v. 7) ipa-4.6.8-5.el7, ipa-client-4.6.8-5.el7, ipa-client-common-4.6.8-5.el7 +4
    • Red Hat Enterprise Linux Client Optional (v. 7) ipa-server-4.6.8-5.el7, ipa-server-common-4.6.8-5.el7, ipa-server-dns-4.6.8-5.el7 +2
    • Red Hat Enterprise Linux ComputeNode (v. 7) ipa-4.6.8-5.el7, ipa-client-4.6.8-5.el7, ipa-client-common-4.6.8-5.el7 +4
    • Red Hat Enterprise Linux ComputeNode Optional (v. 7) ipa-server-4.6.8-5.el7, ipa-server-common-4.6.8-5.el7, ipa-server-dns-4.6.8-5.el7 +2
    • Red Hat Enterprise Linux Server (v. 7) ipa-4.6.8-5.el7, ipa-client-4.6.8-5.el7, ipa-client-common-4.6.8-5.el7 +9
    • Red Hat Enterprise Linux Workstation (v. 7) ipa-4.6.8-5.el7, ipa-client-4.6.8-5.el7, ipa-client-common-4.6.8-5.el7 +9

Vendor assessments

Red Hat

Red Hat rating: Low. 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 AppStream (v. 8)Fixed RHSA-2020:4670
Red Hat Enterprise Linux Client (v. 7)Fixed RHSA-2020:3936
Red Hat Enterprise Linux Client Optional (v. 7)Fixed RHSA-2020:3936
Red Hat Enterprise Linux ComputeNode (v. 7)Fixed RHSA-2020:3936
Red Hat Enterprise Linux ComputeNode Optional (v. 7)Fixed RHSA-2020:3936
Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2020:3936
Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2020:3936

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-1722
  2. 2026-10-03 Alias added: GHSA-mvj3-pw74-8w47

References

Advisory 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