DEBIAN-CVE-2025-61912

See a problem?
Please try reporting it to the source first.
Source
https://security-tracker.debian.org/tracker/CVE-2025-61912
Import Source
https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2025-61912.json
JSON Data
https://api.test.osv.dev/v1/vulns/DEBIAN-CVE-2025-61912
Upstream
Published
2025-10-10T22:15:37Z
Modified
2025-10-15T07:57:05.937525Z
Severity
  • 5.5 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/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

python-ldap is a lightweight directory access protocol (LDAP) client API for Python. In versions prior to 3.4.5, ldap.dn.escapednchars() escapes \x00 incorrectly by emitting a backslash followed by a literal NUL byte instead of the RFC-4514 hex form \00. Any application that uses this helper to construct DNs from untrusted input can be made to consistently fail before a request is sent to the LDAP server (e.g., AD), resulting in a client-side denial of service. Version 3.4.5 contains a patch for the issue.

References

Affected packages

Debian:11 / python-ldap

Package

Name
python-ldap
Purl
pkg:deb/debian/python-ldap?arch=source

Affected ranges

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

Affected versions

3.*

3.2.0-4
3.3.1-1
3.4.0-1~exp1
3.4.0-1
3.4.0-2
3.4.2-1
3.4.2-2
3.4.2-3
3.4.3-1
3.4.3-2
3.4.4-1
3.4.4-2

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:12 / python-ldap

Package

Name
python-ldap
Purl
pkg:deb/debian/python-ldap?arch=source

Affected ranges

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

Affected versions

3.*

3.4.3-2
3.4.4-1
3.4.4-2

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:13 / python-ldap

Package

Name
python-ldap
Purl
pkg:deb/debian/python-ldap?arch=source

Affected ranges

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

Affected versions

3.*

3.4.4-1
3.4.4-2

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:14 / python-ldap

Package

Name
python-ldap
Purl
pkg:deb/debian/python-ldap?arch=source

Affected ranges

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

Affected versions

3.*

3.4.4-1
3.4.4-2

Ecosystem specific 

{
    "urgency": "not yet assigned"
}