CVE-2017-15906

2017-10-2500:00:00

ubuntu.com

5 Medium

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

5.3 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

LOW

Availability Impact

NONE

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

0.007 Low

EPSS

Percentile

79.7%

JSON

The process_open function in sftp-server.c in OpenSSH before 7.6 does not
properly prevent write operations in readonly mode, which allows attackers
to create zero-length files.

Notes

Author	Note
leosilva	file structure and patch mismatch, some ajustments required

OSVersionArchitecturePackageVersionFilename
ubuntu17.10noarchopenssh< 1:7.5p1-10ubuntu0.1UNKNOWN
ubuntu18.04noarchopenssh< 1:7.6p1-4UNKNOWN
ubuntu18.10noarchopenssh< 1:7.6p1-4UNKNOWN
ubuntu19.04noarchopenssh< 1:7.6p1-4UNKNOWN
ubuntu19.10noarchopenssh< 1:7.6p1-4UNKNOWN
ubuntu20.04noarchopenssh< 1:7.6p1-4UNKNOWN
ubuntu20.10noarchopenssh< 1:7.6p1-4UNKNOWN
ubuntu21.04noarchopenssh< 1:7.6p1-4UNKNOWN
ubuntu14.04noarchopenssh< 1:6.6p1-2ubuntu2.10UNKNOWN
ubuntu16.04noarchopenssh< 1:7.2p2-4ubuntu2.4UNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	17.10	noarch	openssh	< 1:7.5p1-10ubuntu0.1	UNKNOWN
ubuntu	18.04	noarch	openssh	< 1:7.6p1-4	UNKNOWN
ubuntu	18.10	noarch	openssh	< 1:7.6p1-4	UNKNOWN
ubuntu	19.04	noarch	openssh	< 1:7.6p1-4	UNKNOWN
ubuntu	19.10	noarch	openssh	< 1:7.6p1-4	UNKNOWN
ubuntu	20.04	noarch	openssh	< 1:7.6p1-4	UNKNOWN
ubuntu	20.10	noarch	openssh	< 1:7.6p1-4	UNKNOWN
ubuntu	21.04	noarch	openssh	< 1:7.6p1-4	UNKNOWN
ubuntu	14.04	noarch	openssh	< 1:6.6p1-2ubuntu2.10	UNKNOWN
ubuntu	16.04	noarch	openssh	< 1:7.2p2-4ubuntu2.4	UNKNOWN