CVE-2024-12254
Description
Starting in Python 3.12.0, the asyncio._SelectorSocketTransport.writelines() method would not "pause" writing and signal to the Protocol to drain the buffer to the wire once the write buffer reached the "high-water mark". Because of this, Protocols would not periodically drain the write buffer potentially leading to memory exhaustion. This vulnerability likely impacts a small number of users, you must be using Python 3.12.0 or later, on macOS or Linux, using the asyncio module with protocols, and using .writelines() method which had new zero-copy-on-write behavior in Python 3.12.0 and later. If not all of these factors are true then your usage of Python is unaffected.
INFO
Published Date :
Dec. 6, 2024, 4:15 p.m.
Last Modified :
Dec. 6, 2024, 7:15 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
Exploitability Score :
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-2024-12254.
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).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2024-12254 vulnerability anywhere in the article.
-
Cybersecurity News
CVE-2024-12727 and More: Sophos Issues Urgent Firewall Security Update
Sophos has announced the resolution of three critical security vulnerabilities affecting its Sophos Firewall product, a widely used network security tool. These vulnerabilities, tracked as CVE-2024-12 ... Read more
-
Cybersecurity News
CVE-2024-49775 (CVSS 9.8): Critical Vulnerability in Siemens UMC Exposes Systems to Remote Exploitation
Siemens has disclosed a critical heap-based buffer overflow vulnerability (CVE-2024-49775) in its User Management Component (UMC), a core element integrated into several of its products. If exploited, ... Read more
-
Cybersecurity News
Apache Superset Patches Multi Security Flaws in Latest Release
The Apache Software Foundation has announced the release of Apache Superset 4.1.0, an important update that addresses three significant security vulnerabilities affecting the widely used open-source b ... Read more
-
Cybersecurity News
CVE-2024-12254: CPython Flaw Could Lead to Memory Exhaustion in asyncio Applications
A high-severity vulnerability (CVE-2024-12254) has been discovered in CPython, the reference implementation of the Python programming language. This vulnerability, with a CVSSv4 score of 8.7, affects ... Read more
-
Cybersecurity News
Veeam Backup & Replication Vulnerabilities Exposed: High-Severity Flaws Put Data at Risk
Veeam Software, a prominent provider of backup, recovery, and data management solutions, has released a security update to address multiple vulnerabilities in its Veeam Backup & Replication software. ... Read more
The following table lists the changes that have been made to the
CVE-2024-12254 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 af854a3a-2127-422b-91ae-364da2661108
Dec. 06, 2024
Action Type Old Value New Value Added Reference http://www.openwall.com/lists/oss-security/2024/12/06/1 -
New CVE Received by [email protected]
Dec. 06, 2024
Action Type Old Value New Value Added Description Starting in Python 3.12.0, the asyncio._SelectorSocketTransport.writelines() method would not "pause" writing and signal to the Protocol to drain the buffer to the wire once the write buffer reached the "high-water mark". Because of this, Protocols would not periodically drain the write buffer potentially leading to memory exhaustion. This vulnerability likely impacts a small number of users, you must be using Python 3.12.0 or later, on macOS or Linux, using the asyncio module with protocols, and using .writelines() method which had new zero-copy-on-write behavior in Python 3.12.0 and later. If not all of these factors are true then your usage of Python is unaffected. Added CVSS V4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/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 Added CWE CWE-400 Added CWE CWE-770 Added Reference https://github.com/python/cpython/commit/71e8429ac8e2adc10084ab5ec29a62f4b6671a82 Added Reference https://github.com/python/cpython/commit/9aa0deb2eef2655a1029ba228527b152353135b5 Added Reference https://github.com/python/cpython/issues/127655 Added Reference https://github.com/python/cpython/pull/127656 Added Reference https://mail.python.org/archives/list/[email protected]/thread/H4O3UBAOAQQXGT4RE3E4XQYR5XLROORB/
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2024-12254 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-2024-12254
weaknesses.