CVE-2016-2563
Published: 7 April 2016
Stack-based buffer overflow in the SCP command-line utility in PuTTY before 0.67 and KiTTY 0.66.6.3 and earlier allows remote servers to cause a denial of service (stack memory corruption) or execute arbitrary code via a crafted SCP-SINK file-size response to an SCP download request.
Priority
Status
| Package | Release | Status |
|---|---|---|
|
putty Launchpad, Ubuntu, Debian |
artful |
Not vulnerable
(0.67-1)
|
| bionic |
Not vulnerable
(0.67-1)
|
|
| cosmic |
Not vulnerable
(0.67-1)
|
|
| disco |
Not vulnerable
(0.67-1)
|
|
| precise |
Ignored
(end of life)
|
|
| trusty |
Does not exist
(trusty was needed)
|
|
| upstream |
Released
(0.67-1)
|
|
| wily |
Ignored
(end of life)
|
|
| xenial |
Not vulnerable
(0.67-1)
|
|
| yakkety |
Not vulnerable
(0.67-1)
|
|
| zesty |
Not vulnerable
(0.67-1)
|
|
|
Patches: upstream: http://tartarus.org/~simon-git/gitweb/?p=putty.git;a=commitdiff;h=bc6c15ab5f636e05b7e91883f0031a7e06117947 |
||
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 9.8 |
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity impact | High |
| Availability impact | High |
| Vector | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
References
- http://www.chiark.greenend.org.uk/~sgtatham/putty/wishlist/vuln-pscp-sink-sscanf.html
- http://tartarus.org/~simon-git/gitweb/?p=putty.git;a=commitdiff;h=bc6c15ab5f636e05b7e91883f0031a7e06117947
- https://github.com/tintinweb/pub/tree/master/pocs/cve-2016-2563
- https://www.cve.org/CVERecord?id=CVE-2016-2563
- NVD
- Launchpad
- Debian