0.0
NA
CVE-2024-5642
Python OpenSSL NPN Configuration Buffer Over-read
Description

CPython 3.9 and earlier doesn't disallow configuring an empty list ("[]") for SSLContext.set_npn_protocols() which is an invalid value for the underlying OpenSSL API. This results in a buffer over-read when NPN is used (see CVE-2024-5535 for OpenSSL). This vulnerability is of low severity due to NPN being not widely used and specifying an empty list likely being uncommon in-practice (typically a protocol name would be configured).

INFO

Published Date :

June 27, 2024, 9:15 p.m.

Last Modified :

July 28, 2024, 2:15 p.m.

Source :

[email protected]

Remotely Exploitable :

No

Impact Score :

Exploitability Score :

Public PoC/Exploit Available at Github

CVE-2024-5642 has a 1 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

Affected Products

The following products are affected by CVE-2024-5642 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Python python
: Total Affected Vendor : 1 | Products : 1
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2024-5642.

URL Resource
http://www.openwall.com/lists/oss-security/2024/06/28/4
https://github.com/python/cpython/commit/39258d3595300bc7b952854c915f63ae2d4b9c3e
https://github.com/python/cpython/issues/121227
https://github.com/python/cpython/pull/23014
https://jbp.io/2024/06/27/cve-2024-5535-openssl-memory-safety.html
https://mail.python.org/archives/list/[email protected]/thread/PLP2JI3PJY33YG6P5BZYSSNU66HASXBQ/
https://security.netapp.com/advisory/ntap-20240726-0005/

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Profile Photo
chnzzh/OpenSSL-CVE-lib

None

Updated: 3 weeks, 6 days ago
5 stars 0 fork 0 watcher
Born at : Feb. 23, 2023, 5:42 a.m. This repo has been linked 455 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2024-5642 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2024-5642 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    Jul. 28, 2024

    Action Type Old Value New Value
    Added Reference Python Software Foundation https://security.netapp.com/advisory/ntap-20240726-0005/ [No types assigned]
  • CVE Modified by [email protected]

    Jul. 01, 2024

    Action Type Old Value New Value
    Added Reference Python Software Foundation https://github.com/python/cpython/issues/121227 [No types assigned]
  • CVE Modified by [email protected]

    Jun. 28, 2024

    Action Type Old Value New Value
    Added Reference Python Software Foundation http://www.openwall.com/lists/oss-security/2024/06/28/4 [No types assigned]
  • CVE Modified by [email protected]

    Jun. 27, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Jun. 27, 2024

    Action Type Old Value New Value
    Added Reference Python Software Foundation https://mail.python.org/archives/list/[email protected]/thread/PLP2JI3PJY33YG6P5BZYSSNU66HASXBQ/ [No types assigned]
    Added Reference Python Software Foundation https://github.com/python/cpython/commit/39258d3595300bc7b952854c915f63ae2d4b9c3e [No types assigned]
  • CVE Received by [email protected]

    Jun. 27, 2024

    Action Type Old Value New Value
    Added Description CPython 3.9 and earlier doesn't disallow configuring an empty list ("[]") for SSLContext.set_npn_protocols() which is an invalid value for the underlying OpenSSL API. This results in a buffer over-read when NPN is used (see CVE-2024-5535 for OpenSSL). This vulnerability is of low severity due to NPN being not widely used and specifying an empty list likely being uncommon in-practice (typically a protocol name would be configured).
    Added Reference Python Software Foundation https://jbp.io/2024/06/27/cve-2024-5535-openssl-memory-safety.html [No types assigned]
    Added Reference Python Software Foundation https://github.com/python/cpython/pull/23014 [No types assigned]
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2024-5642 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2024-5642 weaknesses.

NONE - Vulnerability Scoring System
: