CVE-2025-49506
Publication date 6 August 2026
Last updated 3 September 2026
Ubuntu priority
Description
APR-util versions 1.6.3 (and earlier) function apr_password_validate() was not constant-time with regards to hashes or passwords comparisons, potentially leaking their content via a side channel timing attack particularly on platforms without crypt() such as Windows, BeOS, NetWare, or Android. Users are recommended to upgrade to version 1.6.4, which fixes this issue.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| apr-util | 26.04 LTS resolute |
Fixed 1.6.3-3ubuntu3.1
|
| 24.04 LTS noble |
Fixed 1.6.3-1.1ubuntu7.1
|
|
| 22.04 LTS jammy |
Fixed 1.6.1-5ubuntu4.22.04.3
|
|
| 20.04 LTS focal |
Fixed 1.6.1-4ubuntu2.2+esm1
|
|
| 18.04 LTS bionic |
Fixed 1.6.1-2ubuntu0.1+esm1
|
|
| 16.04 LTS xenial |
Fixed 1.5.4-1ubuntu0.1~esm1
|
|
| 14.04 LTS trusty |
Fixed 1.5.3-1ubuntu0.1~esm3
|
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CVSS version: CVSS v3.0
Base score
7.5 · High
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
References
Related Ubuntu Security Notices (USN)
- USN-8719-1
- APR-util vulnerabilities
- 3 September 2026