Improper resource allocation In python3.13
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.
Mitigation
Update Impact
Minimal update. May introduce new vulnerabilities or breaking changes.
Ecosystem | Package | Affected version | Patched versions |
|---|---|---|---|
 debian 13 | >=0 <3.13.1-2 | 3.13.1-2 | |
 alpine v3.20 | =3.1.3-r0 || =3.10.0-r0 || =3.10.0-r1 || =3.10.1-r0 || =3.10.2-r0 || =3.10.2-r1 || =3.10.3-r0 || =3.10.3-r1 || =3.10.4-r0 || =3.10.5-r0 || =3.10.5-r1 || =3.10.5-r2 || =3.10.6-r0 || =3.10.6-r1 || =3.10.7-r0 || =3.10.8-r0 || =3.10.8-r1 || =3.10.8-r2 || =3.10.8-r3 || =3.11.0-r0 || =3.11.0-r1 || =3.11.0-r2 || =3.11.1-r0 || =3.11.1-r1 || =3.11.1-r2 || =3.11.1-r3 || =3.11.1-r4 || =3.11.2-r0 || =3.11.3-r0 || =3.11.3-r1 || =3.11.3-r10 || =3.11.3-r11 || =3.11.3-r2 || =3.11.3-r3 || =3.11.3-r4 || =3.11.3-r5 || =3.11.3-r6 || =3.11.3-r7 || =3.11.3-r8 || =3.11.3-r9 || =3.11.4-r0 || =3.11.4-r1 || =3.11.4-r2 || =3.11.4-r3 || =3.11.4-r4 || =3.11.5-r0 || =3.11.6-r0 || =3.11.6-r1 || =3.11.6-r2 || =3.11.7-r0 || =3.11.7-r1 || =3.11.8-r0 || =3.12.2-r0 || =3.12.2-r1 || =3.12.3-r0 || =3.12.3-r1 || =3.12.3-r2 || =3.12.6-r0 || =3.12.7-r0 || =3.12.8-r0 || =3.2.0-r0 || =3.2.3-r0 || =3.3.0-r0 || =3.3.2-r0 || =3.3.3-r0 || =3.3.4-r0 || =3.4.1-r0 || =3.4.2-r0 || =3.4.2-r1 || =3.4.3-r1 || =3.4.3-r2 || =3.5.0-r0 || =3.5.1-r0 || =3.5.1-r1 || =3.5.1-r2 || =3.5.1-r3 || =3.5.2-r0 || =3.5.2-r1 || =3.5.2-r10 || =3.5.2-r2 || =3.5.2-r3 || =3.5.2-r4 || =3.5.2-r5 || =3.5.2-r6 || =3.5.2-r7 || =3.5.2-r8 || =3.5.2-r9 || =3.6.0-r0 || =3.6.1-r0 || =3.6.1-r1 || =3.6.1-r2 || =3.6.1-r3 || =3.6.1-r4 || =3.6.2-r0 || =3.6.2-r1 || =3.6.2-r2 || =3.6.2-r3 || =3.6.3-r3 || =3.6.3-r4 || =3.6.3-r5 || =3.6.3-r6 || =3.6.3-r7 || =3.6.3-r8 || =3.6.3-r9 || =3.6.4-r0 || =3.6.4-r1 || =3.6.6-r0 || =3.6.6-r1 || =3.6.6-r2 || =3.6.6-r3 || =3.6.7-r0 || =3.6.8-r0 || =3.6.8-r1 || =3.6.8-r2 || =3.7.2-r0 || =3.7.3-r0 || =3.7.3-r1 || =3.7.4-r0 || =3.7.5-r0 || =3.7.5-r1 || =3.8.0-r0 || =3.8.1-r0 || =3.8.1-r1 || =3.8.1-r2 || =3.8.1-r3 || =3.8.2-r0 || =3.8.2-r1 || =3.8.2-r2 || =3.8.2-r3 || =3.8.2-r4 || =3.8.2-r5 || =3.8.2-r6 || =3.8.2-r7 || =3.8.3-r0 || =3.8.4-r0 || =3.8.5-r0 || =3.8.5-r1 || =3.8.5-r2 || =3.8.6-r0 || =3.8.7-r0 || =3.8.7-r1 || =3.8.7-r2 || =3.8.7-r3 || =3.8.8-r0 || =3.9.1-r0 || =3.9.2-r0 || =3.9.4-r0 || =3.9.5-r0 || =3.9.5-r1 || =3.9.6-r0 || =3.9.6-r1 || =3.9.6-r2 || =3.9.7-r2 || =3.9.7-r3 || =3.9.7-r4 || >=0 <3.12.8-r1 | 3.12.8-r1 | |
alpine v3.22 | =3.1.3-r0 || =3.10.0-r0 || =3.10.0-r1 || =3.10.1-r0 || =3.10.2-r0 || =3.10.2-r1 || =3.10.3-r0 || =3.10.3-r1 || =3.10.4-r0 || =3.10.5-r0 || =3.10.5-r1 || =3.10.5-r2 || =3.10.6-r0 || =3.10.6-r1 || =3.10.7-r0 || =3.10.8-r0 || =3.10.8-r1 || =3.10.8-r2 || =3.10.8-r3 || =3.11.0-r0 || =3.11.0-r1 || =3.11.0-r2 || =3.11.1-r0 || =3.11.1-r1 || =3.11.1-r2 || =3.11.1-r3 || =3.11.1-r4 || =3.11.2-r0 || =3.11.3-r0 || =3.11.3-r1 || =3.11.3-r10 || =3.11.3-r11 || =3.11.3-r2 || =3.11.3-r3 || =3.11.3-r4 || =3.11.3-r5 || =3.11.3-r6 || =3.11.3-r7 || =3.11.3-r8 || =3.11.3-r9 || =3.11.4-r0 || =3.11.4-r1 || =3.11.4-r2 || =3.11.4-r3 || =3.11.4-r4 || =3.11.5-r0 || =3.11.6-r0 || =3.11.6-r1 || =3.11.6-r2 || =3.11.7-r0 || =3.11.7-r1 || =3.11.8-r0 || =3.12.2-r0 || =3.12.2-r1 || =3.12.3-r0 || =3.12.3-r1 || =3.12.4-r0 || =3.12.5-r0 || =3.12.5-r1 || =3.12.6-r0 || =3.12.7-r0 || =3.12.7-r1 || =3.12.8-r0 || =3.2.0-r0 || =3.2.3-r0 || =3.3.0-r0 || =3.3.2-r0 || =3.3.3-r0 || =3.3.4-r0 || =3.4.1-r0 || =3.4.2-r0 || =3.4.2-r1 || =3.4.3-r1 || =3.4.3-r2 || =3.5.0-r0 || =3.5.1-r0 || =3.5.1-r1 || =3.5.1-r2 || =3.5.1-r3 || =3.5.2-r0 || =3.5.2-r1 || =3.5.2-r10 || =3.5.2-r2 || =3.5.2-r3 || =3.5.2-r4 || =3.5.2-r5 || =3.5.2-r6 || =3.5.2-r7 || =3.5.2-r8 || =3.5.2-r9 || =3.6.0-r0 || =3.6.1-r0 || =3.6.1-r1 || =3.6.1-r2 || =3.6.1-r3 || =3.6.1-r4 || =3.6.2-r0 || =3.6.2-r1 || =3.6.2-r2 || =3.6.2-r3 || =3.6.3-r3 || =3.6.3-r4 || =3.6.3-r5 || =3.6.3-r6 || =3.6.3-r7 || =3.6.3-r8 || =3.6.3-r9 || =3.6.4-r0 || =3.6.4-r1 || =3.6.6-r0 || =3.6.6-r1 || =3.6.6-r2 || =3.6.6-r3 || =3.6.7-r0 || =3.6.8-r0 || =3.6.8-r1 || =3.6.8-r2 || =3.7.2-r0 || =3.7.3-r0 || =3.7.3-r1 || =3.7.4-r0 || =3.7.5-r0 || =3.7.5-r1 || =3.8.0-r0 || =3.8.1-r0 || =3.8.1-r1 || =3.8.1-r2 || =3.8.1-r3 || =3.8.2-r0 || =3.8.2-r1 || =3.8.2-r2 || =3.8.2-r3 || =3.8.2-r4 || =3.8.2-r5 || =3.8.2-r6 || =3.8.2-r7 || =3.8.3-r0 || =3.8.4-r0 || =3.8.5-r0 || =3.8.5-r1 || =3.8.5-r2 || =3.8.6-r0 || =3.8.7-r0 || =3.8.7-r1 || =3.8.7-r2 || =3.8.7-r3 || =3.8.8-r0 || =3.9.1-r0 || =3.9.2-r0 || =3.9.4-r0 || =3.9.5-r0 || =3.9.5-r1 || =3.9.6-r0 || =3.9.6-r1 || =3.9.6-r2 || =3.9.7-r2 || =3.9.7-r3 || =3.9.7-r4 || >=0 <3.12.8-r1 | 3.12.8-r1 | |
debian 14 | >=0 <3.13.1-2 | 3.13.1-2 | |
alpine v3.21 | =3.1.3-r0 || =3.10.0-r0 || =3.10.0-r1 || =3.10.1-r0 || =3.10.2-r0 || =3.10.2-r1 || =3.10.3-r0 || =3.10.3-r1 || =3.10.4-r0 || =3.10.5-r0 || =3.10.5-r1 || =3.10.5-r2 || =3.10.6-r0 || =3.10.6-r1 || =3.10.7-r0 || =3.10.8-r0 || =3.10.8-r1 || =3.10.8-r2 || =3.10.8-r3 || =3.11.0-r0 || =3.11.0-r1 || =3.11.0-r2 || =3.11.1-r0 || =3.11.1-r1 || =3.11.1-r2 || =3.11.1-r3 || =3.11.1-r4 || =3.11.2-r0 || =3.11.3-r0 || =3.11.3-r1 || =3.11.3-r10 || =3.11.3-r11 || =3.11.3-r2 || =3.11.3-r3 || =3.11.3-r4 || =3.11.3-r5 || =3.11.3-r6 || =3.11.3-r7 || =3.11.3-r8 || =3.11.3-r9 || =3.11.4-r0 || =3.11.4-r1 || =3.11.4-r2 || =3.11.4-r3 || =3.11.4-r4 || =3.11.5-r0 || =3.11.6-r0 || =3.11.6-r1 || =3.11.6-r2 || =3.11.7-r0 || =3.11.7-r1 || =3.11.8-r0 || =3.12.2-r0 || =3.12.2-r1 || =3.12.3-r0 || =3.12.3-r1 || =3.12.4-r0 || =3.12.5-r0 || =3.12.5-r1 || =3.12.6-r0 || =3.12.7-r0 || =3.12.7-r1 || =3.12.8-r0 || =3.2.0-r0 || =3.2.3-r0 || =3.3.0-r0 || =3.3.2-r0 || =3.3.3-r0 || =3.3.4-r0 || =3.4.1-r0 || =3.4.2-r0 || =3.4.2-r1 || =3.4.3-r1 || =3.4.3-r2 || =3.5.0-r0 || =3.5.1-r0 || =3.5.1-r1 || =3.5.1-r2 || =3.5.1-r3 || =3.5.2-r0 || =3.5.2-r1 || =3.5.2-r10 || =3.5.2-r2 || =3.5.2-r3 || =3.5.2-r4 || =3.5.2-r5 || =3.5.2-r6 || =3.5.2-r7 || =3.5.2-r8 || =3.5.2-r9 || =3.6.0-r0 || =3.6.1-r0 || =3.6.1-r1 || =3.6.1-r2 || =3.6.1-r3 || =3.6.1-r4 || =3.6.2-r0 || =3.6.2-r1 || =3.6.2-r2 || =3.6.2-r3 || =3.6.3-r3 || =3.6.3-r4 || =3.6.3-r5 || =3.6.3-r6 || =3.6.3-r7 || =3.6.3-r8 || =3.6.3-r9 || =3.6.4-r0 || =3.6.4-r1 || =3.6.6-r0 || =3.6.6-r1 || =3.6.6-r2 || =3.6.6-r3 || =3.6.7-r0 || =3.6.8-r0 || =3.6.8-r1 || =3.6.8-r2 || =3.7.2-r0 || =3.7.3-r0 || =3.7.3-r1 || =3.7.4-r0 || =3.7.5-r0 || =3.7.5-r1 || =3.8.0-r0 || =3.8.1-r0 || =3.8.1-r1 || =3.8.1-r2 || =3.8.1-r3 || =3.8.2-r0 || =3.8.2-r1 || =3.8.2-r2 || =3.8.2-r3 || =3.8.2-r4 || =3.8.2-r5 || =3.8.2-r6 || =3.8.2-r7 || =3.8.3-r0 || =3.8.4-r0 || =3.8.5-r0 || =3.8.5-r1 || =3.8.5-r2 || =3.8.6-r0 || =3.8.7-r0 || =3.8.7-r1 || =3.8.7-r2 || =3.8.7-r3 || =3.8.8-r0 || =3.9.1-r0 || =3.9.2-r0 || =3.9.4-r0 || =3.9.5-r0 || =3.9.5-r1 || =3.9.6-r0 || =3.9.6-r1 || =3.9.6-r2 || =3.9.7-r2 || =3.9.7-r3 || =3.9.7-r4 || >=0 <3.12.8-r1 | 3.12.8-r1 | |
alpine v3.23 | =3.1.3-r0 || =3.10.0-r0 || =3.10.0-r1 || =3.10.1-r0 || =3.10.2-r0 || =3.10.2-r1 || =3.10.3-r0 || =3.10.3-r1 || =3.10.4-r0 || =3.10.5-r0 || =3.10.5-r1 || =3.10.5-r2 || =3.10.6-r0 || =3.10.6-r1 || =3.10.7-r0 || =3.10.8-r0 || =3.10.8-r1 || =3.10.8-r2 || =3.10.8-r3 || =3.11.0-r0 || =3.11.0-r1 || =3.11.0-r2 || =3.11.1-r0 || =3.11.1-r1 || =3.11.1-r2 || =3.11.1-r3 || =3.11.1-r4 || =3.11.2-r0 || =3.11.3-r0 || =3.11.3-r1 || =3.11.3-r10 || =3.11.3-r11 || =3.11.3-r2 || =3.11.3-r3 || =3.11.3-r4 || =3.11.3-r5 || =3.11.3-r6 || =3.11.3-r7 || =3.11.3-r8 || =3.11.3-r9 || =3.11.4-r0 || =3.11.4-r1 || =3.11.4-r2 || =3.11.4-r3 || =3.11.4-r4 || =3.11.5-r0 || =3.11.6-r0 || =3.11.6-r1 || =3.11.6-r2 || =3.11.7-r0 || =3.11.7-r1 || =3.11.8-r0 || =3.12.2-r0 || =3.12.2-r1 || =3.12.3-r0 || =3.12.3-r1 || =3.12.4-r0 || =3.12.5-r0 || =3.12.5-r1 || =3.12.6-r0 || =3.12.7-r0 || =3.12.7-r1 || =3.12.8-r0 || =3.2.0-r0 || =3.2.3-r0 || =3.3.0-r0 || =3.3.2-r0 || =3.3.3-r0 || =3.3.4-r0 || =3.4.1-r0 || =3.4.2-r0 || =3.4.2-r1 || =3.4.3-r1 || =3.4.3-r2 || =3.5.0-r0 || =3.5.1-r0 || =3.5.1-r1 || =3.5.1-r2 || =3.5.1-r3 || =3.5.2-r0 || =3.5.2-r1 || =3.5.2-r10 || =3.5.2-r2 || =3.5.2-r3 || =3.5.2-r4 || =3.5.2-r5 || =3.5.2-r6 || =3.5.2-r7 || =3.5.2-r8 || =3.5.2-r9 || =3.6.0-r0 || =3.6.1-r0 || =3.6.1-r1 || =3.6.1-r2 || =3.6.1-r3 || =3.6.1-r4 || =3.6.2-r0 || =3.6.2-r1 || =3.6.2-r2 || =3.6.2-r3 || =3.6.3-r3 || =3.6.3-r4 || =3.6.3-r5 || =3.6.3-r6 || =3.6.3-r7 || =3.6.3-r8 || =3.6.3-r9 || =3.6.4-r0 || =3.6.4-r1 || =3.6.6-r0 || =3.6.6-r1 || =3.6.6-r2 || =3.6.6-r3 || =3.6.7-r0 || =3.6.8-r0 || =3.6.8-r1 || =3.6.8-r2 || =3.7.2-r0 || =3.7.3-r0 || =3.7.3-r1 || =3.7.4-r0 || =3.7.5-r0 || =3.7.5-r1 || =3.8.0-r0 || =3.8.1-r0 || =3.8.1-r1 || =3.8.1-r2 || =3.8.1-r3 || =3.8.2-r0 || =3.8.2-r1 || =3.8.2-r2 || =3.8.2-r3 || =3.8.2-r4 || =3.8.2-r5 || =3.8.2-r6 || =3.8.2-r7 || =3.8.3-r0 || =3.8.4-r0 || =3.8.5-r0 || =3.8.5-r1 || =3.8.5-r2 || =3.8.6-r0 || =3.8.7-r0 || =3.8.7-r1 || =3.8.7-r2 || =3.8.7-r3 || =3.8.8-r0 || =3.9.1-r0 || =3.9.2-r0 || =3.9.4-r0 || =3.9.5-r0 || =3.9.5-r1 || =3.9.6-r0 || =3.9.6-r1 || =3.9.6-r2 || =3.9.7-r2 || =3.9.7-r3 || =3.9.7-r4 || >=0 <3.12.8-r1 | 3.12.8-r1 | |
 rpm rhel10 | - | - | |
rpm rhel9.4 | <0:3.12.1-4.el9_4.5 | 0:3.12.1-4.el9_4.5 | |
rpm rhel8 | <0:3.12.8-1.el8_10 | 0:3.12.8-1.el8_10 | |
rpm rhel9 | <0:3.12.5-2.el9_5.2 | 0:3.12.5-2.el9_5.2 |
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