DEBIAN-CVE-2025-61911

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Source
https://security-tracker.debian.org/tracker/CVE-2025-61911
Import Source
https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2025-61911.json
JSON Data
https://api.test.osv.dev/v1/vulns/DEBIAN-CVE-2025-61911
Upstream
Published
2025-10-10T22:15:37Z
Modified
2025-10-15T07:57:07.106411Z
Severity
  • 5.5 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/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, the sanitization method ldap.filter.escape_filter_chars can be tricked to skip escaping of special characters when a crafted list or dict is supplied as the assertion_value parameter, and the non-default escape_mode=1 is configured. The method ldap.filter.escape_filter_chars supports 3 different escaping modes. escape_mode=0 (default) and escape_mode=2 happen to raise exceptions when a list or dict object is supplied as the assertion_value parameter. However, escape_mode=1 computes without performing adequate logic to ensure a fully escaped return value. If an application relies on the vulnerable method in the python-ldap library to escape untrusted user input, an attacker might be able to abuse the vulnerability to launch ldap injection attacks which could potentially disclose or manipulate ldap data meant to be inaccessible to them. Version 3.4.5 fixes the issue by adding a type check at the start of the ldap.filter.escape_filter_chars method to raise an exception when the supplied assertion_value parameter is not of type str.

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"
}