CVE-2017-15906
Published: 25 October 2017
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 |
Priority
Status
Package | Release | Status |
---|---|---|
openssh Launchpad, Ubuntu, Debian |
artful |
Released
(1:7.5p1-10ubuntu0.1)
|
bionic |
Released
(1:7.6p1-4)
|
|
cosmic |
Released
(1:7.6p1-4)
|
|
disco |
Released
(1:7.6p1-4)
|
|
eoan |
Released
(1:7.6p1-4)
|
|
focal |
Released
(1:7.6p1-4)
|
|
groovy |
Released
(1:7.6p1-4)
|
|
hirsute |
Released
(1:7.6p1-4)
|
|
trusty |
Released
(1:6.6p1-2ubuntu2.10)
|
|
upstream |
Released
(1:7.6p1-1)
|
|
xenial |
Released
(1:7.2p2-4ubuntu2.4)
|
|
zesty |
Ignored
(reached end-of-life)
|
|
Patches: upstream: https://github.com/openbsd/src/commit/a6981567e8e215acc1ef690c8dbb30f2d9b00a19 |
Severity score breakdown
Parameter | Value |
---|---|
Base score | 5.3 |
Attack vector | Network |
Attack complexity | Low |
Privileges required | None |
User interaction | None |
Scope | Unchanged |
Confidentiality | None |
Integrity impact | Low |
Availability impact | None |
Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N |