DEBIAN-CVE-2025-11678

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Source
https://security-tracker.debian.org/tracker/CVE-2025-11678
Import Source
https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2025-11678.json
JSON Data
https://api.test.osv.dev/v1/vulns/DEBIAN-CVE-2025-11678
Upstream
  • CVE-2025-11678
Downstream
Published
2025-10-20T14:15:40.137Z
Modified
2025-11-18T00:15:26.496245Z
Severity
  • 7.5 (High) CVSS_V4 - CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X CVSS Calculator
Summary
[none]
Details

Stack-based Buffer Overflow in lwsadnsparselabel in warmcat libwebsockets allows, when the LWSWITHSYSASYNCDNS flag is enabled during compilation, to overflow the labelstack, when the attacker is able to sniff a DNS request in order to craft a response with a matching id containing a label longer than the maximum.

References

Affected packages

Debian:11 / libwebsockets

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
4.0.20-2+deb11u1

Affected versions

4.*

4.0.20-2

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:12 / libwebsockets

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

4.*

4.1.6-3
4.1.6-3.1
4.3.2-1
4.3.2-2
4.3.2-3
4.3.2-4
4.3.3-1
4.3.3-1.1~exp1
4.3.3-1.1
4.3.5-1
4.3.5-2
4.3.5-3

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:13 / libwebsockets

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
4.3.5-1+deb13u1

Affected versions

4.*

4.3.5-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:14 / libwebsockets

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
4.3.5-3

Affected versions

4.*

4.3.5-1
4.3.5-2

Ecosystem specific 

{
    "urgency": "not yet assigned"
}