Vulnerability 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Python | Python | <= 2.7.16 |
| Fedoraproject | Fedora | 29 |
| Debian | Debian Linux | 8.0 |
| Canonical | Ubuntu Linux | 12.04 |
| Redhat | Software Collections | 1.0 |
| Oracle | Communications Operations Monitor | >= 4.1, <= 4.3 |
| Oracle | Peoplesoft Enterprise Peopletools | 8.57 |
| Oracle | Zfs Storage Appliance Kit | 8.8 |
| Oracle | Solaris | 11 |
| Opensuse | Leap | 15.0 |
References
- http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00062.htmlThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00063.htmlThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00012.htmlThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00021.htmlThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00040.htmlThird Party Advisory
- https://access.redhat.com/errata/RHSA-2019:3725Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:3948Third Party Advisory
- https://bugs.python.org/issue34155Issue TrackingVendor Advisory
- https://github.com/python/cpython/commit/8cb65d1381b027f0b09ee36bfed7f35bb4dec9aPatch
- https://lists.apache.org/thread.html/r1b103833cb5bc8466e24ff0ecc5e75b45a705334ab
- https://lists.debian.org/debian-lts-announce/2019/09/msg00018.htmlMailing ListThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/09/msg00019.htmlMailing ListThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/07/msg00011.htmlMailing ListThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/08/msg00034.htmlMailing ListThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
FAQ
What is CVE-2019-16056?
CVE-2019-16056 is a vulnerability with a CVSS score of 7.5 (HIGH). 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. A...
How severe is CVE-2019-16056?
CVE-2019-16056 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2019-16056?
Check the references section above for vendor advisories and patch information. Affected products include: Python Python, Fedoraproject Fedora, Debian Debian Linux, Canonical Ubuntu Linux, Redhat Software Collections.