Description
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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Red Hat | ipa | all ipa versions 4.x.x through 4.8.0 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | freeipa | 4.8.8-2 | — |
| Debian 13 | freeipa | 4.8.8-2 | — |
| Debian 12 | freeipa | 4.8.8-2 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | freeipa | No fix yet | — |
| Ubuntu 26.04 LTS | freeipa | No fix yet | — |
| Ubuntu 25.10 | freeipa | No fix yet | — |
| Ubuntu 24.04 LTS | freeipa | No fix yet | — |
| Ubuntu 22.04 LTS | freeipa | No fix yet | — |
Show 4 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | freeipa | No fix yet | — |
| Ubuntu 18.04 LTS | freeipa | No fix yet | — |
| Ubuntu Pro 16.04 LTS | freeipa | No fix yet | — |
| Ubuntu Pro 14.04 LTS | freeipa | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 8 | bind-dyndb-ldap | 11.3-1.module+el8.3.0+6993+104f8db0 | RHSA-2020:4670 |
| RHEL 8 | custodia +1 | 0.6.0-3.module+el8.1.0+4098+f286395e | RHSA-2020:4670 |
| RHEL 8 | ipa +9 | 4.8.7-12.module+el8.3.0+8223+6212645f | RHSA-2020:4670 |
| RHEL 8 | ipa-healthcheck +1 | 0.4-6.module+el8.3.0+7711+c4441980 | RHSA-2020:4670 |
| RHEL 8 | ipa-server +4 | 4.8.7-12.module+el8.3.0+8222+c1bff54a | RHSA-2020:4670 |
| RHEL 8 | opendnssec | 2.1.6-2.module+el8.3.0+6580+328a3362 | RHSA-2020:4670 |
| RHEL 8 | python-jwcrypto +1 | 0.5.0-1.module+el8.1.0+4107+4a66eb87 | RHSA-2020:4670 |
| RHEL 8 | python-kdcproxy +1 | 0.4-5.module+el8.2.0+4691+a05b2456 | RHSA-2020:4670 |
| RHEL 8 | python-qrcode +2 | 5.1-12.module+el8.1.0+4107+4a66eb87 | RHSA-2020:4670 |
| RHEL 8 | python-yubico +1 | 1.3.2-9.module+el8.1.0+4107+4a66eb87 | RHSA-2020:4670 |
| RHEL 8 | pyusb +1 | 1.0.0-9.module+el8.1.0+4107+4a66eb87 | RHSA-2020:4670 |
| RHEL 8 | slapi-nis | 0.56.5-4.module+el8.3.0+8222+c1bff54a | RHSA-2020:4670 |
| RHEL 8 | softhsm +1 | 2.6.0-3.module+el8.3.0+6909+fb33717d | RHSA-2020:4670 |
| RHEL 7 | ipa +11 | 4.6.8-5.el7 | RHSA-2020:3936 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 8 | custodia +1 | 0.6.0-3.module_el8.6.0+2881+2f24dc92 | ALSA-2020:4670 |
| AlmaLinux 8 | python3-jwcrypto | 0.5.0-1.module_el8.5.0+2641+983b221b | ALSA-2020:4670 |
| AlmaLinux 8 | python3-kdcproxy | 0.4-5.module_el8.6.0+2881+2f24dc92 | ALSA-2020:4670 |
| AlmaLinux 8 | python3-pyusb | 1.0.0-9.module_el8.5.0+2641+983b221b | ALSA-2020:4670 |
| AlmaLinux 8 | python3-qrcode +1 | 5.1-12.module_el8.5.0+2641+983b221b | ALSA-2020:4670 |
| AlmaLinux 8 | python3-yubico | 1.3.2-9.module_el8.5.0+2641+983b221b | ALSA-2020:4670 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 8 | custodia | 0.6.0-3.module+el8.4.0+429+6bd33fea | RLSA-2020:4670 |
| Rocky Linux 8 | python-jwcrypto | 0.5.0-1.module+el8.4.0+429+6bd33fea | RLSA-2020:4670 |
| Rocky Linux 8 | python-kdcproxy | 0.4-5.module+el8.3.0+244+0b2ae752 | RLSA-2020:4670 |
| Rocky Linux 8 | python-qrcode | 5.1-12.module+el8.4.0+429+6bd33fea | RLSA-2020:4670 |
| Rocky Linux 8 | python-yubico | 1.3.2-9.module+el8.4.0+429+6bd33fea | RLSA-2020:4670 |
| Rocky Linux 8 | pyusb | 1.0.0-9.module+el8.4.0+429+6bd33fea | RLSA-2020:4670 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2 | ipa-client +10 | 4.6.8-5.amzn2 | ALAS2-2020-1519 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 8 | bind-dyndb-ldap | 11.3-1.module+el8.3.0+7868+2151076c | ELSA-2020-4670 |
| Oracle Linux 8 | custodia +1 | 0.6.0-3.module+el8.3.0+7868+2151076c | ELSA-2020-4670 |
| Oracle Linux 8 | ipa-client +13 | 4.8.7-12.0.1.module+el8.3.0+7868+2151076c | ELSA-2020-4670 |
| Oracle Linux 8 | ipa-healthcheck +1 | 0.4-6.module+el8.3.0+7868+2151076c | ELSA-2020-4670 |
| Oracle Linux 8 | opendnssec | 2.1.6-2.module+el8.3.0+7868+2151076c | ELSA-2020-4670 |
| Oracle Linux 8 | python3-jwcrypto | 0.5.0-1.module+el8.3.0+7868+2151076c | ELSA-2020-4670 |
| Oracle Linux 8 | python3-kdcproxy | 0.4-5.module+el8.3.0+7868+2151076c | ELSA-2020-4670 |
| Oracle Linux 8 | python3-pyusb | 1.0.0-9.module+el8.3.0+7868+2151076c | ELSA-2020-4670 |
| Oracle Linux 8 | python3-qrcode +1 | 5.1-12.module+el8.3.0+7868+2151076c | ELSA-2020-4670 |
| Oracle Linux 8 | python3-yubico | 1.3.2-9.module+el8.3.0+7868+2151076c | ELSA-2020-4670 |
| Oracle Linux 8 | slapi-nis | 0.56.5-4.module+el8.3.0+7868+2151076c | ELSA-2020-4670 |
| Oracle Linux 8 | softhsm +1 | 2.6.0-3.module+el8.3.0+7868+2151076c | ELSA-2020-4670 |
| Oracle Linux 7 | ipa-client +10 | 4.6.8-5.0.1.el7 | ELSA-2020-3936 |
Advisories 7
- ALSA-2020:4670 Moderate: idm:DL1 and idm:client security, bug fix, and enhancement update AlmaLinux Security Advisories · Oct 29, 2026
- RHSA-2020:4670 Red Hat Security Advisory: idm:DL1 and idm:client security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Oct 13, 2026
- RHSA-2020:3936 Red Hat Security Advisory: ipa security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Oct 13, 2026
- RLSA-2020:4670 Moderate: idm:DL1 and idm:client security, bug fix, and enhancement update Rocky Linux Security Advisories · Feb 4, 2026
- ELSA-2020-4670 Moderate: idm:DL1 and idm:client security, bug fix, and enhancement update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Nov 10, 2020
- ALAS2-2020-1519 Moderate: ipa security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Oct 22, 2020
- ELSA-2020-3936 Moderate: ipa security, bug fix, and enhancement update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Oct 6, 2020