opensuse-su-2025:15637-1
Vulnerability from csaf_opensuse
Published
2025-10-15 00:00
Modified
2025-10-15 00:00
Summary
python311-ldap-3.4.5-1.1 on GA media

Notes

Title of the patch
python311-ldap-3.4.5-1.1 on GA media
Description of the patch
These are all security issues fixed in the python311-ldap-3.4.5-1.1 package on the GA media of openSUSE Tumbleweed.
Patchnames
openSUSE-Tumbleweed-2025-15637
Terms of use
CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).


To clipboard 

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          "text": "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`.",
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          "text": "python-ldap is a lightweight directory access protocol (LDAP) client API for Python. In versions prior to 3.4.5, ldap.dn.escape_dn_chars() 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.",
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            "openSUSE Tumbleweed:python313-ldap-3.4.5-1.1.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
            "version": "3.1"
          },
          "products": [
            "openSUSE Tumbleweed:python311-ldap-3.4.5-1.1.aarch64",
            "openSUSE Tumbleweed:python311-ldap-3.4.5-1.1.ppc64le",
            "openSUSE Tumbleweed:python311-ldap-3.4.5-1.1.s390x",
            "openSUSE Tumbleweed:python311-ldap-3.4.5-1.1.x86_64",
            "openSUSE Tumbleweed:python312-ldap-3.4.5-1.1.aarch64",
            "openSUSE Tumbleweed:python312-ldap-3.4.5-1.1.ppc64le",
            "openSUSE Tumbleweed:python312-ldap-3.4.5-1.1.s390x",
            "openSUSE Tumbleweed:python312-ldap-3.4.5-1.1.x86_64",
            "openSUSE Tumbleweed:python313-ldap-3.4.5-1.1.aarch64",
            "openSUSE Tumbleweed:python313-ldap-3.4.5-1.1.ppc64le",
            "openSUSE Tumbleweed:python313-ldap-3.4.5-1.1.s390x",
            "openSUSE Tumbleweed:python313-ldap-3.4.5-1.1.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2025-10-15T00:00:00Z",
          "details": "moderate"
        }
      ],
      "title": "CVE-2025-61912"
    }
  ]
}


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