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gitlabHttps://gitlab.com/gitlab-org/security-products/gemnasium-dbGITLAB-80C6E4F41FA90D4FC555D4C86AD52470
HistoryApr 03, 2024 - 12:00 a.m.

AMPHP Denial of Service via HTTP/2 CONTINUATION Frames

2024-04-0300:00:00
https://gitlab.com/gitlab-org/security-products/gemnasium-db
gitlab.com
6
amphp
http/2
continuation frames
oom crash
http-client
http-server
unbounded buffer
header size limit
denial of service
software

CVSS3

8.2

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

LOW

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H

AI Score

7.3

Confidence

High

EPSS

0

Percentile

15.5%

amphp/http will collect HTTP/2 CONTINUATION frames in an unbounded buffer and will not check the header size limit until it has received the END_HEADERS flag, resulting in an OOM crash. amphp/http-client and amphp/http-server are indirectly affected if they’re used with an unpatched version of amphp/http. Early versions of amphp/http-client with HTTP/2 support (v4.0.0-rc10 to 4.0.0) are also directly affected.

Affected configurations

Vulners
Node
packagisthttp-clientRange4.0.0-rc10
OR
packagisthttp-clientRange4.0.0
VendorProductVersionCPE
packagisthttp-client*cpe:2.3:a:packagist:http-client:*:*:*:*:*:*:*:*

CVSS3

8.2

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

LOW

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H

AI Score

7.3

Confidence

High

EPSS

0

Percentile

15.5%