Описание
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.
| Релиз | Статус | Примечание |
|---|---|---|
| bionic | ignored | end of standard support |
| devel | DNE | |
| esm-apps/focal | not-affected | code not present |
| esm-apps/jammy | not-affected | code not present |
| esm-infra-legacy/trusty | not-affected | code not present |
| esm-infra/bionic | not-affected | code not present |
| esm-infra/xenial | not-affected | code not present |
| focal | not-affected | code not present |
| jammy | not-affected | code not present |
| noble | DNE |
Показывать по
| Релиз | Статус | Примечание |
|---|---|---|
| bionic | DNE | |
| devel | DNE | |
| esm-infra-legacy/trusty | DNE | |
| esm-infra/focal | DNE | |
| focal | DNE | |
| jammy | not-affected | code not present |
| noble | DNE | |
| oracular | DNE | |
| plucky | DNE | |
| questing | DNE |
Показывать по
| Релиз | Статус | Примечание |
|---|---|---|
| bionic | DNE | |
| devel | DNE | |
| esm-apps/jammy | not-affected | code not present |
| esm-infra-legacy/trusty | DNE | |
| esm-infra/focal | DNE | |
| focal | DNE | |
| jammy | not-affected | code not present |
| noble | DNE | |
| oracular | DNE | |
| plucky | DNE |
Показывать по
| Релиз | Статус | Примечание |
|---|---|---|
| bionic | DNE | |
| devel | DNE | |
| esm-infra-legacy/trusty | DNE | |
| esm-infra/focal | DNE | |
| focal | DNE | |
| jammy | DNE | |
| noble | released | 3.12.3-1ubuntu0.4 |
| oracular | released | 3.12.7-1ubuntu1.1 |
| plucky | DNE | |
| questing | DNE |
Показывать по
| Релиз | Статус | Примечание |
|---|---|---|
| bionic | DNE | |
| devel | not-affected | 3.13.1-2 |
| esm-infra-legacy/trusty | DNE | |
| esm-infra/focal | DNE | |
| focal | DNE | |
| jammy | DNE | |
| noble | DNE | |
| oracular | ignored | end of life, was needs-triage |
| plucky | not-affected | 3.13.1-2 |
| questing | not-affected | 3.13.1-2 |
Показывать по
| Релиз | Статус | Примечание |
|---|---|---|
| bionic | DNE | |
| devel | DNE | |
| esm-infra-legacy/trusty | not-affected | code not present |
| esm-infra/focal | DNE | |
| focal | DNE | |
| jammy | DNE | |
| noble | DNE | |
| oracular | DNE | |
| plucky | DNE | |
| questing | DNE |
Показывать по
| Релиз | Статус | Примечание |
|---|---|---|
| bionic | DNE | |
| devel | DNE | |
| esm-infra-legacy/trusty | not-affected | code not present |
| esm-infra/focal | DNE | |
| esm-infra/xenial | not-affected | code not present |
| focal | DNE | |
| jammy | DNE | |
| noble | DNE | |
| oracular | DNE | |
| plucky | DNE |
Показывать по
| Релиз | Статус | Примечание |
|---|---|---|
| bionic | ignored | end of standard support |
| devel | DNE | |
| esm-infra-legacy/trusty | DNE | |
| esm-infra/bionic | not-affected | code not present |
| esm-infra/focal | DNE | |
| focal | DNE | |
| jammy | DNE | |
| noble | DNE | |
| oracular | DNE | |
| plucky | DNE |
Показывать по
| Релиз | Статус | Примечание |
|---|---|---|
| bionic | ignored | end of standard support |
| devel | DNE | |
| esm-apps/bionic | not-affected | code not present |
| esm-infra-legacy/trusty | DNE | |
| esm-infra/focal | DNE | |
| focal | DNE | |
| jammy | DNE | |
| noble | DNE | |
| oracular | DNE | |
| plucky | DNE |
Показывать по
| Релиз | Статус | Примечание |
|---|---|---|
| bionic | ignored | end of standard support |
| devel | DNE | |
| esm-apps/bionic | not-affected | code not present |
| esm-infra-legacy/trusty | DNE | |
| esm-infra/focal | not-affected | code not present |
| focal | not-affected | code not present |
| jammy | DNE | |
| noble | DNE | |
| oracular | DNE | |
| plucky | DNE |
Показывать по
| Релиз | Статус | Примечание |
|---|---|---|
| bionic | DNE | |
| devel | DNE | |
| esm-apps/focal | not-affected | code not present |
| esm-infra-legacy/trusty | DNE | |
| focal | not-affected | code not present |
| jammy | DNE | |
| noble | DNE | |
| oracular | DNE | |
| plucky | DNE | |
| questing | DNE |
Показывать по
Ссылки на источники
EPSS
7.5 High
CVSS3
Связанные уязвимости
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.
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.
Unbounded memory buffering in SelectorSocketTransport.writelines()
Starting in Python 3.12.0, the asyncio._SelectorSocketTransport.writel ...
EPSS
7.5 High
CVSS3