CVE-2024-12254

描述

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.

如何修補 CVE-2024-12254

要修補 CVE-2024-12254,請將受影響套件升級到下列已修補版本。

• —升級至 3.12.8-r1 或更新版本
• —升級至 3.12.9 或更新版本
• —升級至 3.12.9 或更新版本
• —升級至 3.12.9 或更新版本
• —升級至 3.13.1-2 或更新版本

CVE-2024-12254 正在被利用嗎?

低 — EPSS 為 1.9%,目前沒有觀察到大規模利用活動。

受影響套件(5)

• from 0, < 3.12.8-r1
• >= 3.12.0, < 3.12.9, >= 3.13.0, < 3.13.2
• >= 3.12.0, < 3.12.9, >= 3.13.0, < 3.13.2
• >= 3.12.0, < 3.12.9, >= 3.13.0, < 3.13.2
• from 0, < 3.13.1-2

CVSS 分數

參考連結(11)

• ADVISORYsecurity-tracker.debian.org/tracker/CVE-2024-12254
• ADVISORYsecurity.alpinelinux.org/vuln/CVE-2024-12254
• WEBwww.openwall.com/lists/oss-security/2024/12/06/1
• WEBgithub.com/python/cpython/commit/71e8429ac8e2adc10084ab5ec29a62f4b6671a82