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githubGitHub Advisory DatabaseGHSA-F256-J965-7F32
HistoryMar 30, 2021 - 3:10 p.m.

Possible request smuggling in HTTP/2 due missing validation of content-length

2021-03-3015:10:38
CWE-444
GitHub Advisory Database
github.com
33

5.9 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

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

4.3 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:M/Au:N/C:N/I:P/A:N

0.024 Low

EPSS

Percentile

89.8%

JSON

Impact

The content-length header is not correctly validated if the request only use a single Http2HeaderFrame with the endStream set to to true. This could lead to request smuggling if the request is proxied to a remote peer and translated to HTTP/1.1

This is a followup of https://github.com/netty/netty/security/advisories/GHSA-wm47-8v5p-wjpj which did miss to fix this one case.

Patches

This was fixed as part of 4.1.61.Final

Workarounds

Validation can be done by the user before proxy the request by validating the header.

References

Related

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mageia 1
ubuntucve 1
photon 5
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ubuntu 1
rocky 1
oracle 5
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Possible request smuggling in HTTP/2 due missing validation
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(RHSA-2021:2696) Moderate: Red Hat JBoss Enterprise Application Platform 7.3.8 security update
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2021-07-13 12:48:53
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2021-07-27 23:21:53
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2021-04-05 19:06:20
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2023-04-28 00:00:00
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5.9 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

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

4.3 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:M/Au:N/C:N/I:P/A:N

0.024 Low

EPSS

Percentile

89.8%

JSON
Related for GHSA-F256-J965-7F32
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