DEBIAN-CVE-2025-55753

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Source
https://security-tracker.debian.org/tracker/CVE-2025-55753
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2025-55753.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2025-55753
Upstream
Downstream
Published
2025-12-05T11:15:51.890Z
Modified
2026-01-25T00:15:41.881376Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
Summary
[none]
Details

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.

References

Affected packages

Debian:11 / apache2

Package

Name
apache2
Purl
pkg:deb/debian/apache2?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.4.66-1~deb11u1

Affected versions

2.*

2.4.48-3.1
2.4.48-3.1+deb11u1
2.4.48-4
2.4.49-1~bpo10+1
2.4.49-1~deb11u1
2.4.49-1~deb11u2
2.4.49-1~deb11u3
2.4.49-1
2.4.49-2
2.4.49-3
2.4.49-4
2.4.50-1~deb11u1
2.4.50-1
2.4.51-1~bpo10+1
2.4.51-1~bpo10+2
2.4.51-1~deb11u1
2.4.51-1
2.4.51-2
2.4.52-1~bpo10+1
2.4.52-1~deb11u1
2.4.52-1~deb11u2
2.4.52-1
2.4.52-2
2.4.52-3
2.4.53-1~deb11u1
2.4.53-1
2.4.53-2~bpo10+1
2.4.53-2
2.4.54-1~deb11u1
2.4.54-1
2.4.54-2
2.4.54-3
2.4.54-4
2.4.54-5
2.4.55-1
2.4.56-1~deb11u1
2.4.56-1~deb11u2
2.4.56-1
2.4.56-2
2.4.57-1
2.4.57-2
2.4.57-3
2.4.58-1
2.4.59-1~deb10u1
2.4.59-1~deb11u1
2.4.59-1~deb12u1
2.4.59-1
2.4.59-2
2.4.60-1
2.4.61-1~deb11u1
2.4.61-1~deb12u1
2.4.61-1
2.4.62-1~deb11u1
2.4.62-1~deb11u2
2.4.62-1~deb12u1
2.4.62-1~deb12u2
2.4.62-1
2.4.62-2
2.4.62-3
2.4.62-4
2.4.62-5
2.4.62-6
2.4.63-1
2.4.64-1
2.4.65-1~deb11u1
2.4.65-1~deb12u1
2.4.65-1
2.4.65-2
2.4.65-3

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source

"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2025-55753.json"

Debian:12 / apache2

Package

Name
apache2
Purl
pkg:deb/debian/apache2?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.4.66-1~deb12u1

Affected versions

2.*

2.4.57-2
2.4.57-3
2.4.58-1
2.4.59-1~deb10u1
2.4.59-1~deb11u1
2.4.59-1~deb12u1
2.4.59-1
2.4.59-2
2.4.60-1
2.4.61-1~deb11u1
2.4.61-1~deb12u1
2.4.61-1
2.4.62-1~deb11u1
2.4.62-1~deb11u2
2.4.62-1~deb12u1
2.4.62-1~deb12u2
2.4.62-1
2.4.62-2
2.4.62-3
2.4.62-4
2.4.62-5
2.4.62-6
2.4.63-1
2.4.64-1
2.4.65-1~deb11u1
2.4.65-1~deb12u1
2.4.65-1
2.4.65-2
2.4.65-3
2.4.66-1~deb11u1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source

"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2025-55753.json"

Debian:13 / apache2

Package

Name
apache2
Purl
pkg:deb/debian/apache2?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.4.66-1~deb13u1

Affected versions

2.*

2.4.65-2
2.4.65-3
2.4.66-1~deb11u1
2.4.66-1~deb12u1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source

"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2025-55753.json"

Debian:14 / apache2

Package

Name
apache2
Purl
pkg:deb/debian/apache2?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.4.66-1

Affected versions

2.*

2.4.65-2
2.4.65-3
2.4.66-1~deb11u1
2.4.66-1~deb12u1
2.4.66-1~deb13u1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source

"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2025-55753.json"