Описание
An attacker may cause an HTTP/2 endpoint to read arbitrary amounts of header data by sending an excessive number of CONTINUATION frames. Maintaining HPACK state requires parsing and processing all HEADERS and CONTINUATION frames on a connection. When a request's headers exceed MaxHeaderBytes, no memory is allocated to store the excess headers, but they are still parsed. This permits an attacker to cause an HTTP/2 endpoint to read arbitrary amounts of header data, all associated with a request which is going to be rejected. These headers can include Huffman-encoded data which is significantly more expensive for the receiver to decode than for an attacker to send. The fix sets a limit on the amount of excess header frames we will process before closing a connection.
| Релиз | Статус | Примечание |
|---|---|---|
| devel | DNE | |
| esm-infra/focal | DNE | |
| focal | DNE | |
| jammy | DNE | |
| mantic | DNE | |
| noble | DNE | |
| oracular | DNE | |
| plucky | DNE | |
| upstream | needs-triage |
Показывать по
| Релиз | Статус | Примечание |
|---|---|---|
| devel | DNE | |
| esm-infra-legacy/trusty | needs-triage | |
| esm-infra/bionic | needs-triage | |
| esm-infra/focal | DNE | |
| esm-infra/xenial | needs-triage | |
| focal | DNE | |
| jammy | DNE | |
| mantic | DNE | |
| noble | DNE | |
| oracular | DNE |
Показывать по
| Релиз | Статус | Примечание |
|---|---|---|
| devel | DNE | |
| esm-apps/bionic | needs-triage | |
| esm-apps/jammy | needs-triage | |
| esm-apps/xenial | needs-triage | |
| esm-infra/focal | needs-triage | |
| focal | ignored | end of standard support, was needs-triage |
| jammy | needs-triage | |
| mantic | DNE | |
| noble | DNE | |
| oracular | DNE |
Показывать по
| Релиз | Статус | Примечание |
|---|---|---|
| devel | DNE | |
| esm-infra/focal | needs-triage | |
| focal | ignored | end of standard support, was needs-triage |
| jammy | DNE | |
| mantic | DNE | |
| noble | DNE | |
| oracular | DNE | |
| plucky | DNE | |
| upstream | needs-triage |
Показывать по
| Релиз | Статус | Примечание |
|---|---|---|
| devel | DNE | |
| esm-apps/bionic | needs-triage | |
| esm-apps/focal | needs-triage | |
| focal | ignored | end of standard support, was needs-triage |
| jammy | DNE | |
| mantic | DNE | |
| noble | DNE | |
| oracular | DNE | |
| plucky | DNE | |
| upstream | needs-triage |
Показывать по
| Релиз | Статус | Примечание |
|---|---|---|
| devel | DNE | |
| esm-infra/focal | DNE | |
| focal | DNE | |
| jammy | released | 1.17.13-3ubuntu1.3 |
| mantic | DNE | |
| noble | DNE | |
| oracular | DNE | |
| plucky | DNE | |
| upstream | needs-triage |
Показывать по
| Релиз | Статус | Примечание |
|---|---|---|
| devel | DNE | |
| esm-apps/bionic | released | 1.18.1-1ubuntu1~18.04.4+esm1 |
| esm-apps/xenial | released | 1.18.1-1ubuntu1~16.04.6+esm1 |
| esm-infra/focal | DNE | focal was released [1.18.1-1ubuntu1~20.04.3] |
| focal | released | 1.18.1-1ubuntu1~20.04.3 |
| jammy | released | 1.18.1-1ubuntu1.2 |
| mantic | DNE | |
| noble | DNE | |
| oracular | DNE | |
| plucky | DNE |
Показывать по
| Релиз | Статус | Примечание |
|---|---|---|
| devel | DNE | |
| esm-infra/focal | DNE | |
| focal | DNE | |
| jammy | DNE | |
| mantic | DNE | |
| noble | DNE | |
| oracular | DNE | |
| plucky | DNE | |
| upstream | needs-triage |
Показывать по
| Релиз | Статус | Примечание |
|---|---|---|
| devel | DNE | |
| esm-infra/focal | DNE | focal was needs-triage |
| focal | ignored | end of standard support, was needs-triage |
| jammy | needs-triage | |
| mantic | ignored | end of life, was needs-triage |
| noble | DNE | |
| oracular | DNE | |
| plucky | DNE | |
| upstream | needs-triage |
Показывать по
| Релиз | Статус | Примечание |
|---|---|---|
| devel | DNE | |
| esm-apps/noble | not-affected | |
| esm-infra/focal | DNE | focal was released [1.21.1-1~ubuntu20.04.3] |
| focal | released | 1.21.1-1~ubuntu20.04.3 |
| jammy | released | 1.21.1-1~ubuntu22.04.3 |
| mantic | ignored | end of life, was needs-triage |
| noble | not-affected | 1.21.9-1 |
| oracular | DNE | |
| plucky | DNE | |
| upstream | needs-triage |
Показывать по
| Релиз | Статус | Примечание |
|---|---|---|
| devel | DNE | |
| esm-infra/focal | DNE | focal was not-affected [1.22.2-2~20.04] |
| focal | not-affected | 1.22.2-2~20.04 |
| jammy | not-affected | 1.22.2-2~22.04 |
| mantic | not-affected | 1.22.2-2~23.10 |
| noble | not-affected | 1.22.2-2 |
| oracular | not-affected | 1.22.4-1 |
| plucky | DNE | |
| upstream | needs-triage |
Показывать по
| Релиз | Статус | Примечание |
|---|---|---|
| devel | DNE | |
| esm-infra/focal | DNE | |
| esm-infra/xenial | needs-triage | |
| focal | DNE | |
| jammy | DNE | |
| mantic | DNE | |
| noble | DNE | |
| oracular | DNE | |
| plucky | DNE | |
| upstream | needs-triage |
Показывать по
| Релиз | Статус | Примечание |
|---|---|---|
| devel | DNE | |
| esm-apps/bionic | needs-triage | |
| esm-infra/focal | DNE | |
| focal | DNE | |
| jammy | DNE | |
| mantic | DNE | |
| noble | DNE | |
| oracular | DNE | |
| plucky | DNE | |
| upstream | needs-triage |
Показывать по
| Релиз | Статус | Примечание |
|---|---|---|
| devel | DNE | |
| esm-apps/bionic | needs-triage | |
| esm-infra/focal | DNE | |
| focal | DNE | |
| jammy | DNE | |
| mantic | DNE | |
| noble | DNE | |
| oracular | DNE | |
| plucky | DNE | |
| upstream | needs-triage |
Показывать по
Ссылки на источники
EPSS
7.5 High
CVSS3
Связанные уязвимости
An attacker may cause an HTTP/2 endpoint to read arbitrary amounts of header data by sending an excessive number of CONTINUATION frames. Maintaining HPACK state requires parsing and processing all HEADERS and CONTINUATION frames on a connection. When a request's headers exceed MaxHeaderBytes, no memory is allocated to store the excess headers, but they are still parsed. This permits an attacker to cause an HTTP/2 endpoint to read arbitrary amounts of header data, all associated with a request which is going to be rejected. These headers can include Huffman-encoded data which is significantly more expensive for the receiver to decode than for an attacker to send. The fix sets a limit on the amount of excess header frames we will process before closing a connection.
An attacker may cause an HTTP/2 endpoint to read arbitrary amounts of ...
EPSS
7.5 High
CVSS3