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githubGitHub Advisory DatabaseGHSA-5MQJ-XC49-246P
HistoryMar 22, 2023 - 9:23 p.m.

crewjam/saml vulnerable to Denial Of Service Via Deflate Decompression Bomb

2023-03-2221:23:25
CWE-770
GitHub Advisory Database
github.com
23
crewjam/saml
vulnerability
denial of service
deflate
decompression bomb
http request
operating system
process
software

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

0.001 Low

EPSS

Percentile

47.5%

Our use of flate.NewReader does not limit the size of the input. The user could pass more than 1 MB of data in the HTTP request to the processing functions, which will be decompressed server-side using the Deflate algorithm. Therefore, after repeating the same request multiple times, it is possible to achieve a reliable crash since the operating system kills the process.

Affected configurations

Vulners
Node
crewjamsamlRange<0.4.13
CPENameOperatorVersion
github.com/crewjam/samllt0.4.13

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

0.001 Low

EPSS

Percentile

47.5%