CVE-2021-38562
rt4-apache2: Best Practical Request Tracker (RT) 4.2 before 4.2.17, 4.4 before 4.4.5,and 5.0 before 5.0.2 allows sensitive informa...
CVE-2021-38562 is fixed in 18 products on 1 platform, first by request-tracker4 4.4.4+dfsg-2ubuntu2, released October 18, 2021. It is not reported as exploited. Patch Radar priority: Routine.
Routine
CVSS
n/a
Low
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0184
79th percentile
Best Practical Request Tracker (RT) 4.2 before 4.2.17, 4.4 before 4.4.5,and 5.0 before 5.0.2 allows sensitive information disclosure via a timingattack against lib/RT/REST2/Middleware/Auth.pm.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| request-tracker4 · Ubuntu 18.04.6 LTS (bionic) | 4.4.2-2ubuntu0.1~esm1 | request-tracker4 4.4.2-2ubuntu0.1~esm1 | Nov 2, 2023 |
| request-tracker4 · Ubuntu 20.04 LTS (focal) | 4.4.3-2+deb10u3build0.20.04.1 | request-tracker4 4.4.3-2+deb10u3build0.20.04.1 | Nov 2, 2023 |
| request-tracker4 · Ubuntu 22.04.1 LTS (jammy) | 4.4.4+dfsg-2ubuntu1.22.04.1 | request-tracker4 4.4.4+dfsg-2ubuntu1.22.04.1 | Nov 2, 2023 |
| request-tracker4 · Ubuntu 24.04.5 LTS (noble) | 4.4.4+dfsg-2ubuntu2 | request-tracker4 4.4.4+dfsg-2ubuntu2 | Oct 18, 2021 |
| request-tracker4 · Ubuntu 24.10 (oracular) | 4.4.4+dfsg-2ubuntu2 | request-tracker4 4.4.4+dfsg-2ubuntu2 | Jan 16, 2026 |
| request-tracker4 · Ubuntu 25.04 (plucky) | 4.4.4+dfsg-2ubuntu2 | request-tracker4 4.4.4+dfsg-2ubuntu2 | Jan 16, 2026 |
| request-tracker5 · Ubuntu 22.04.1 LTS (jammy) | 5.0.1+dfsg-1ubuntu1+esm1 | request-tracker5 5.0.1+dfsg-1ubuntu1+esm1 | May 28, 2025 |
| rt4-apache2 · Ubuntu 18.04.6 LTS (bionic) | 4.4.2-2ubuntu0.1~esm1 | rt4-apache2 4.4.2-2ubuntu0.1~esm1 | Nov 2, 2023 |
| rt4-apache2 · Ubuntu 20.04 LTS (focal) | 4.4.3-2+deb10u3build0.20.04.1 | rt4-apache2 4.4.3-2+deb10u3build0.20.04.1 | Nov 2, 2023 |
| rt4-apache2 · Ubuntu 22.04.1 LTS (jammy) | 4.4.4+dfsg-2ubuntu1.22.04.1 | rt4-apache2 4.4.4+dfsg-2ubuntu1.22.04.1 | Nov 2, 2023 |
| rt4-apache2 · Ubuntu 24.04.5 LTS (noble) | 4.4.4+dfsg-2ubuntu2 | rt4-apache2 4.4.4+dfsg-2ubuntu2 | Oct 18, 2021 |
| rt4-apache2 · Ubuntu 24.10 (oracular) | 4.4.4+dfsg-2ubuntu2 | rt4-apache2 4.4.4+dfsg-2ubuntu2 | Jan 16, 2026 |
| rt4-apache2 · Ubuntu 25.04 (plucky) | 4.4.4+dfsg-2ubuntu2 | rt4-apache2 4.4.4+dfsg-2ubuntu2 | Jan 16, 2026 |
| rt4-clients · Ubuntu 18.04.6 LTS (bionic) | 4.4.2-2ubuntu0.1~esm1 | rt4-clients 4.4.2-2ubuntu0.1~esm1 | Nov 2, 2023 |
| rt4-clients · Ubuntu 20.04 LTS (focal) | 4.4.3-2+deb10u3build0.20.04.1 | rt4-clients 4.4.3-2+deb10u3build0.20.04.1 | Nov 2, 2023 |
| rt4-clients · Ubuntu 22.04.1 LTS (jammy) | 4.4.4+dfsg-2ubuntu1.22.04.1 | rt4-clients 4.4.4+dfsg-2ubuntu1.22.04.1 | Nov 2, 2023 |
| rt4-clients · Ubuntu 24.04.5 LTS (noble) | 4.4.4+dfsg-2ubuntu2 | rt4-clients 4.4.4+dfsg-2ubuntu2 | Oct 18, 2021 |
| rt4-clients · Ubuntu 24.10 (oracular) | 4.4.4+dfsg-2ubuntu2 | rt4-clients 4.4.4+dfsg-2ubuntu2 | Jan 16, 2026 |
| rt4-clients · Ubuntu 25.04 (plucky) | 4.4.4+dfsg-2ubuntu2 | rt4-clients 4.4.4+dfsg-2ubuntu2 | Jan 16, 2026 |
| rt4-db-mysql · Ubuntu 18.04.6 LTS (bionic) | 4.4.2-2ubuntu0.1~esm1 | rt4-db-mysql 4.4.2-2ubuntu0.1~esm1 | Nov 2, 2023 |
| rt4-db-mysql · Ubuntu 20.04 LTS (focal) | 4.4.3-2+deb10u3build0.20.04.1 | rt4-db-mysql 4.4.3-2+deb10u3build0.20.04.1 | Nov 2, 2023 |
| rt4-db-mysql · Ubuntu 22.04.1 LTS (jammy) | 4.4.4+dfsg-2ubuntu1.22.04.1 | rt4-db-mysql 4.4.4+dfsg-2ubuntu1.22.04.1 | Nov 2, 2023 |
| rt4-db-mysql · Ubuntu 24.04.5 LTS (noble) | 4.4.4+dfsg-2ubuntu2 | rt4-db-mysql 4.4.4+dfsg-2ubuntu2 | Oct 18, 2021 |
| rt4-db-mysql · Ubuntu 24.10 (oracular) | 4.4.4+dfsg-2ubuntu2 | rt4-db-mysql 4.4.4+dfsg-2ubuntu2 | Jan 16, 2026 |
| rt4-db-mysql · Ubuntu 25.04 (plucky) | 4.4.4+dfsg-2ubuntu2 | rt4-db-mysql 4.4.4+dfsg-2ubuntu2 | Jan 16, 2026 |
| rt4-db-postgresql · Ubuntu 18.04.6 LTS (bionic) | 4.4.2-2ubuntu0.1~esm1 | rt4-db-postgresql 4.4.2-2ubuntu0.1~esm1 | Nov 2, 2023 |
| rt4-db-postgresql · Ubuntu 20.04 LTS (focal) | 4.4.3-2+deb10u3build0.20.04.1 | rt4-db-postgresql 4.4.3-2+deb10u3build0.20.04.1 | Nov 2, 2023 |
| rt4-db-postgresql · Ubuntu 22.04.1 LTS (jammy) | 4.4.4+dfsg-2ubuntu1.22.04.1 | rt4-db-postgresql 4.4.4+dfsg-2ubuntu1.22.04.1 | Nov 2, 2023 |
| rt4-db-postgresql · Ubuntu 24.04.5 LTS (noble) | 4.4.4+dfsg-2ubuntu2 | rt4-db-postgresql 4.4.4+dfsg-2ubuntu2 | Oct 18, 2021 |
| rt4-db-postgresql · Ubuntu 24.10 (oracular) | 4.4.4+dfsg-2ubuntu2 | rt4-db-postgresql 4.4.4+dfsg-2ubuntu2 | Jan 16, 2026 |
| rt4-db-postgresql · Ubuntu 25.04 (plucky) | 4.4.4+dfsg-2ubuntu2 | rt4-db-postgresql 4.4.4+dfsg-2ubuntu2 | Jan 16, 2026 |
| rt4-db-sqlite · Ubuntu 18.04.6 LTS (bionic) | 4.4.2-2ubuntu0.1~esm1 | rt4-db-sqlite 4.4.2-2ubuntu0.1~esm1 | Nov 2, 2023 |
| rt4-db-sqlite · Ubuntu 20.04 LTS (focal) | 4.4.3-2+deb10u3build0.20.04.1 | rt4-db-sqlite 4.4.3-2+deb10u3build0.20.04.1 | Nov 2, 2023 |
| rt4-db-sqlite · Ubuntu 22.04.1 LTS (jammy) | 4.4.4+dfsg-2ubuntu1.22.04.1 | rt4-db-sqlite 4.4.4+dfsg-2ubuntu1.22.04.1 | Nov 2, 2023 |
| rt4-db-sqlite · Ubuntu 24.04.5 LTS (noble) | 4.4.4+dfsg-2ubuntu2 | rt4-db-sqlite 4.4.4+dfsg-2ubuntu2 | Oct 18, 2021 |
| rt4-db-sqlite · Ubuntu 24.10 (oracular) | 4.4.4+dfsg-2ubuntu2 | rt4-db-sqlite 4.4.4+dfsg-2ubuntu2 | Jan 16, 2026 |
| rt4-db-sqlite · Ubuntu 25.04 (plucky) | 4.4.4+dfsg-2ubuntu2 | rt4-db-sqlite 4.4.4+dfsg-2ubuntu2 | Jan 16, 2026 |
| rt4-doc-html · Ubuntu 18.04.6 LTS (bionic) | 4.4.2-2ubuntu0.1~esm1 | rt4-doc-html 4.4.2-2ubuntu0.1~esm1 | Nov 2, 2023 |
| rt4-doc-html · Ubuntu 20.04 LTS (focal) | 4.4.3-2+deb10u3build0.20.04.1 | rt4-doc-html 4.4.3-2+deb10u3build0.20.04.1 | Nov 2, 2023 |
| rt4-doc-html · Ubuntu 22.04.1 LTS (jammy) | 4.4.4+dfsg-2ubuntu1.22.04.1 | rt4-doc-html 4.4.4+dfsg-2ubuntu1.22.04.1 | Nov 2, 2023 |
| rt4-doc-html · Ubuntu 24.04.5 LTS (noble) | 4.4.4+dfsg-2ubuntu2 | rt4-doc-html 4.4.4+dfsg-2ubuntu2 | Oct 18, 2021 |
| rt4-fcgi · Ubuntu 18.04.6 LTS (bionic) | 4.4.2-2ubuntu0.1~esm1 | rt4-fcgi 4.4.2-2ubuntu0.1~esm1 | Nov 2, 2023 |
| rt4-fcgi · Ubuntu 20.04 LTS (focal) | 4.4.3-2+deb10u3build0.20.04.1 | rt4-fcgi 4.4.3-2+deb10u3build0.20.04.1 | Nov 2, 2023 |
| rt4-fcgi · Ubuntu 22.04.1 LTS (jammy) | 4.4.4+dfsg-2ubuntu1.22.04.1 | rt4-fcgi 4.4.4+dfsg-2ubuntu1.22.04.1 | Nov 2, 2023 |
| rt4-fcgi · Ubuntu 24.04.5 LTS (noble) | 4.4.4+dfsg-2ubuntu2 | rt4-fcgi 4.4.4+dfsg-2ubuntu2 | Oct 18, 2021 |
| rt4-fcgi · Ubuntu 24.10 (oracular) | 4.4.4+dfsg-2ubuntu2 | rt4-fcgi 4.4.4+dfsg-2ubuntu2 | Jan 16, 2026 |
| rt4-fcgi · Ubuntu 25.04 (plucky) | 4.4.4+dfsg-2ubuntu2 | rt4-fcgi 4.4.4+dfsg-2ubuntu2 | Jan 16, 2026 |
| rt4-standalone · Ubuntu 18.04.6 LTS (bionic) | 4.4.2-2ubuntu0.1~esm1 | rt4-standalone 4.4.2-2ubuntu0.1~esm1 | Nov 2, 2023 |
| rt4-standalone · Ubuntu 20.04 LTS (focal) | 4.4.3-2+deb10u3build0.20.04.1 | rt4-standalone 4.4.3-2+deb10u3build0.20.04.1 | Nov 2, 2023 |
| rt4-standalone · Ubuntu 22.04.1 LTS (jammy) | 4.4.4+dfsg-2ubuntu1.22.04.1 | rt4-standalone 4.4.4+dfsg-2ubuntu1.22.04.1 | Nov 2, 2023 |
| rt4-standalone · Ubuntu 24.04.5 LTS (noble) | 4.4.4+dfsg-2ubuntu2 | rt4-standalone 4.4.4+dfsg-2ubuntu2 | Oct 18, 2021 |
| rt4-standalone · Ubuntu 24.10 (oracular) | 4.4.4+dfsg-2ubuntu2 | rt4-standalone 4.4.4+dfsg-2ubuntu2 | Jan 16, 2026 |
| rt4-standalone · Ubuntu 25.04 (plucky) | 4.4.4+dfsg-2ubuntu2 | rt4-standalone 4.4.4+dfsg-2ubuntu2 | Jan 16, 2026 |
| rt5-apache2 · Ubuntu 22.04.1 LTS (jammy) | 5.0.1+dfsg-1ubuntu1+esm1 | rt5-apache2 5.0.1+dfsg-1ubuntu1+esm1 | May 28, 2025 |
| rt5-clients · Ubuntu 22.04.1 LTS (jammy) | 5.0.1+dfsg-1ubuntu1+esm1 | rt5-clients 5.0.1+dfsg-1ubuntu1+esm1 | May 28, 2025 |
| rt5-db-mysql · Ubuntu 22.04.1 LTS (jammy) | 5.0.1+dfsg-1ubuntu1+esm1 | rt5-db-mysql 5.0.1+dfsg-1ubuntu1+esm1 | May 28, 2025 |
| rt5-db-postgresql · Ubuntu 22.04.1 LTS (jammy) | 5.0.1+dfsg-1ubuntu1+esm1 | rt5-db-postgresql 5.0.1+dfsg-1ubuntu1+esm1 | May 28, 2025 |
| rt5-db-sqlite · Ubuntu 22.04.1 LTS (jammy) | 5.0.1+dfsg-1ubuntu1+esm1 | rt5-db-sqlite 5.0.1+dfsg-1ubuntu1+esm1 | May 28, 2025 |
| rt5-doc-html · Ubuntu 22.04.1 LTS (jammy) | 5.0.1+dfsg-1ubuntu1+esm1 | rt5-doc-html 5.0.1+dfsg-1ubuntu1+esm1 | May 28, 2025 |
| rt5-fcgi · Ubuntu 22.04.1 LTS (jammy) | 5.0.1+dfsg-1ubuntu1+esm1 | rt5-fcgi 5.0.1+dfsg-1ubuntu1+esm1 | May 28, 2025 |
| rt5-standalone · Ubuntu 22.04.1 LTS (jammy) | 5.0.1+dfsg-1ubuntu1+esm1 | rt5-standalone 5.0.1+dfsg-1ubuntu1+esm1 | May 28, 2025 |
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