CVE-2020-15694

2020-08-1400:00:00

ubuntu.com

nim 1.2.4

standard library

httpclient

server response validation

content-length

unix

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

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

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

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

EPSS

0.002

Percentile

59.9%

JSON

In Nim 1.2.4, the standard library httpClient fails to properly validate
the server response. For example, httpClient.get().contentLength() does not
raise any error if a malicious server provides a negative Content-Length.

OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchnim< anyUNKNOWN
ubuntu20.04noarchnim< anyUNKNOWN
ubuntu20.10noarchnim< 1.2.6-1UNKNOWN
ubuntu21.04noarchnim< 1.2.6-1UNKNOWN
ubuntu21.10noarchnim< 1.2.6-1UNKNOWN
ubuntu23.04noarchnim< 1.2.6-1UNKNOWN
ubuntu23.10noarchnim< 1.2.6-1UNKNOWN
ubuntu24.04noarchnim< 1.2.6-1UNKNOWN
ubuntu16.04noarchnim< anyUNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	18.04	noarch	nim	< any	UNKNOWN
ubuntu	20.04	noarch	nim	< any	UNKNOWN
ubuntu	20.10	noarch	nim	< 1.2.6-1	UNKNOWN
ubuntu	21.04	noarch	nim	< 1.2.6-1	UNKNOWN
ubuntu	21.10	noarch	nim	< 1.2.6-1	UNKNOWN
ubuntu	23.04	noarch	nim	< 1.2.6-1	UNKNOWN
ubuntu	23.10	noarch	nim	< 1.2.6-1	UNKNOWN
ubuntu	24.04	noarch	nim	< 1.2.6-1	UNKNOWN
ubuntu	16.04	noarch	nim	< any	UNKNOWN