DEBIAN-CVE-2024-12254
- Source
- https://security-tracker.debian.org/tracker/CVE-2024-12254
- Import Source
- https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2024-12254.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/DEBIAN-CVE-2024-12254
- Upstream
- Published
- 2024-12-06T16:15:20Z
- Modified
- 2025-10-15T03:01:12Z
- Severity
-
- 8.7 (High) CVSS_V4 - CVSS:4.0/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 CVSS Calculator
- Summary
- [none]
- Details
-
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.
- References
Affected packages
Debian:13 / python3.13
Package
- Name
- python3.13
- Purl
- pkg:deb/debian/python3.13?arch=source
Debian:14 / python3.13
Package
- Name
- python3.13
- Purl
- pkg:deb/debian/python3.13?arch=source