DEBIAN-CVE-2025-34451

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Source
https://security-tracker.debian.org/tracker/CVE-2025-34451
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2025-34451.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2025-34451
Upstream
Published
2025-12-18T22:15:56Z
Modified
2026-09-01T20:05:46Z
Severity
  • 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

rofl0r/proxychains-ng versions up to and including 4.17 and prior to commit cc005b7 contain a stack-based buffer overflow vulnerability in the function proxy_from_string() located in src/libproxychains.c. When parsing crafted proxy configuration entries containing overly long username or password fields, the application may write beyond the bounds of fixed-size stack buffers, leading to memory corruption or crashes. This vulnerability may allow denial of service and, under certain conditions, could be leveraged for further exploitation depending on the execution environment and applied mitigations.

References

Affected packages

Debian:12 / proxychains-ng

Package

Name
proxychains-ng
Purl
pkg:deb/debian/proxychains-ng?arch=source&distro=bookworm

Affected ranges

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

Affected versions

4.*
4.16-2
4.16-3
4.16-4
4.17-1
4.17-2
4.17-3
4.17-3.1
4.17-4

Ecosystem specific 

{
    "urgency": "unimportant"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2025-34451.json"

Debian:13 / proxychains-ng

Package

Name
proxychains-ng
Purl
pkg:deb/debian/proxychains-ng?arch=source&distro=trixie

Affected ranges

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

Affected versions

4.*
4.17-3
4.17-3.1
4.17-4

Ecosystem specific 

{
    "urgency": "unimportant"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2025-34451.json"

Debian:14 / proxychains-ng

Package

Name
proxychains-ng
Purl
pkg:deb/debian/proxychains-ng?arch=source&distro=forky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
4.17-3.1

Affected versions

4.*
4.17-3

Ecosystem specific 

{
    "urgency": "unimportant"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2025-34451.json"