CVE-2019-16056

Public on 2019-10-28
Modified on 2019-11-22
Description
An issue was discovered in Python through 2.7.16, 3.x through 3.5.7, 3.6.x through 3.6.9, and 3.7.x through 3.7.4. The email module wrongly parses email addresses that contain multiple @ characters. An application that uses the email module and implements some kind of checks on the From/To headers of a message could be tricked into accepting an email address that should be denied. An attack may be the same as in CVE-2019-11340; however, this CVE applies to Python more generally.
Severity
Medium
CVSS v3 Base Score
7.3
See breakdown

Affected Packages

Platform Package Release Date Advisory
Amazon Linux 2 python 2019-11-19 17:53 ALAS2-2019-1368
Amazon Linux 2 python3 2019-11-19 17:53 ALAS2-2019-1368
Amazon Linux 1 python34 2019-11-19 17:31 ALAS-2019-1324
Amazon Linux 1 python34 2019-10-28 17:10 ALAS-2019-1314
Amazon Linux 1 python34 2019-11-19 17:31 ALAS-2019-1324
Amazon Linux 1 python34 2019-10-28 17:10 ALAS-2019-1314
Amazon Linux 1 python35 2019-10-28 17:10 ALAS-2019-1314
Amazon Linux 1 python27 2019-10-28 17:10 ALAS-2019-1314
Amazon Linux 1 python36 2019-10-28 17:10 ALAS-2019-1314

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 7.3 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
NVD CVSSv2 5.0 AV:N/AC:L/Au:N/C:P/I:N/A:N
NVD CVSSv3 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N