CVE-2024-12254 Affecting python312-devel package, versions <3.12.8-150600.3.12.1


Severity

Recommended
0.0
high
0
10

Based on SUSE Linux Enterprise Server security rating.

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  • Snyk IDSNYK-SLES156-PYTHON312DEVEL-8496677
  • published12 Dec 2024
  • disclosed11 Dec 2024

Introduced: 11 Dec 2024

NewCVE-2024-12254  (opens in a new tab)

How to fix?

Upgrade SLES:15.6 python312-devel to version 3.12.8-150600.3.12.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python312-devel package and not the python312-devel package as distributed by SLES. See How to fix? for SLES:15.6 relevant fixed versions and status.

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.

CVSS Scores

version 3.1