EUVD-2025-201395CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Lifecycle Timeline
4DescriptionNVD
An integer overflow in the case of failed ACME certificate renewal leads, after a number of failures (~30 days in default configurations), to the backoff timer becoming 0. Attempts to renew the certificate then are repeated without delays until it succeeds.
This issue affects Apache HTTP Server: from 2.4.30 before 2.4.66.
Users are recommended to upgrade to version 2.4.66, which fixes the issue.
Analysis
An integer overflow in the case of failed ACME certificate renewal leads, after a number of failures (~30 days in default configurations), to the backoff timer becoming 0. Attempts to renew the certificate then are repeated without delays until it succeeds.
This issue affects Apache HTTP Server: from 2.4.30 before 2.4.66.
Users are recommended to upgrade to version 2.4.66, which fixes the issue.
Technical ContextAI
An integer overflow occurs when an arithmetic operation produces a value that exceeds the maximum (or minimum) size of the integer type used to store it. This vulnerability is classified as Integer Overflow or Wraparound (CWE-190).
RemediationAI
Use safe integer arithmetic libraries. Check for overflow conditions before operations. Use appropriately sized integer types.
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Vendor StatusVendor
Ubuntu
Priority: Low| Release | Status | Version |
|---|---|---|
| trusty | needs-triage | - |
| xenial | needs-triage | - |
| bionic | needs-triage | - |
| focal | needs-triage | - |
| plucky | ignored | end of life, was needs-triage |
| jammy | released | 2.4.52-1ubuntu4.18 |
| noble | released | 2.4.58-1ubuntu8.10 |
| questing | released | 2.4.64-1ubuntu3.2 |
| upstream | released | 2.4.66 |
Debian
Bug #1121926| Release | Status | Fixed Version | Urgency |
|---|---|---|---|
| bullseye | fixed | 2.4.66-1~deb11u1 | - |
| bullseye (security) | fixed | 2.4.66-1~deb11u1 | - |
| bookworm | fixed | 2.4.66-1~deb12u1 | - |
| bookworm (security) | vulnerable | 2.4.62-1~deb12u2 | - |
| trixie | fixed | 2.4.66-1~deb13u1 | - |
| forky, sid | fixed | 2.4.66-8 | - |
| (unstable) | fixed | 2.4.66-1 | - |
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External POC / Exploit Code
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