CVE-2025-6966— Null-pointer dereference in python-apt TagSection.keys()
Quick assessment
Affected
Canonical python-apt
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Python-apt是Python基金会的一个可支持Apt软件包管理工具的Pypi代码库。 Python-apt存在安全漏洞，该漏洞源于TagSection.keys函数存在空指针取消引用，可能导致本地攻击者通过特制deb822文件造成拒绝服务。
Possible ATT&CK Techniques 1 AI
T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2025-6966
Vulnerability Information
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Vulnerability Title
Null-pointer dereference in python-apt TagSection.keys()
Source: CVE Program / CVE List V5
Vulnerability Description
NULL pointer dereference in TagSection.keys() in python-apt on APT-based Linux systems allows a local attacker to cause a denial of service (process crash) via a crafted deb822 file with a malformed non-UTF-8 key.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
空指针解引用
Source: CVE Program / CVE List V5
Vulnerability Title
Python-apt 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Python-apt是Python基金会的一个可支持Apt软件包管理工具的Pypi代码库。 Python-apt存在安全漏洞，该漏洞源于TagSection.keys函数存在空指针取消引用，可能导致本地攻击者通过特制deb822文件造成拒绝服务。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Canonical | python-apt | 3.0 ~ 3.0.0ubuntu1.1 | - |
|
II. Public POCs for CVE-2025-6966
| # | POC Description | Source Link | Shenlong Link |
|---|
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