DEBIAN-CVE-2025-49812

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Source
https://security-tracker.debian.org/tracker/CVE-2025-49812
Import Source
https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2025-49812.json
JSON Data
https://api.test.osv.dev/v1/vulns/DEBIAN-CVE-2025-49812
Upstream
Published
2025-07-10T17:15:48Z
Modified
2025-09-19T07:34:44.665813Z
Summary
[none]
Details

In some mod_ssl configurations on Apache HTTP Server versions through to 2.4.63, an HTTP desynchronisation attack allows a man-in-the-middle attacker to hijack an HTTP session via a TLS upgrade. Only configurations using "SSLEngine optional" to enable TLS upgrades are affected. Users are recommended to upgrade to version 2.4.64, which removes support for TLS upgrade.

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
2.4.65-1~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

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

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
2.4.65-1~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

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

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
2.4.64-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

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
2.4.64-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}