CVE-2018-20969
Public on 2019-08-16
Modified on 2019-11-07
Description
A flaw was found in GNU patch through version 2.7.6. Strings beginning with a exclamation mark are not blocked by default. When ed receives an exclamation mark-prefixed command line argument, the argument is executed as a shell command. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
Severity
Important
CVSS v3 Base Score
See breakdown
Affected Packages
| Platform | Package | Release Date | Advisory | Status |
|---|---|---|---|---|
| Amazon Linux 1 | patch | 2019-10-18 | ALAS-2019-1312 | Fixed |
| Amazon Linux 2 - Core | patch | 2019-10-21 | ALAS2-2019-1317 | Fixed |
CVSS Scores
| Score Type | Score | Vector | |
|---|---|---|---|
| Amazon Linux | CVSSv3 | 7.8 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVD | CVSSv2 | 9.3 | AV:N/AC:M/Au:N/C:C/I:C/A:C |
| NVD | CVSSv3 | 7.8 | CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |