CVE-2018-1000656

Advisory

flask version Before 0.12.3 contains a CWE-20: Improper Input Validation vulnerability in flask that can result in Large amount of memory usage possibly leading to denial of service. This attack appear to be exploitable via Attacker provides JSON data in incorrect encoding. This vulnerability appears to have been fixed in 0.12.3.

Affected package

Affected versions

Fixed versions

Vulnerability changelog

The Pallets Project flask version Before 0.12.3 contains a CWE-20: Improper Input Validation vulnerability in flask that can result in Large amount of memory usage possibly leading to denial of service. This attack appear to be exploitable via Attacker provides JSON data in incorrect encoding. This vulnerability appears to have been fixed in 0.12.3.


CONFIRM:https://github.com/pallets/flask/pull/2691: https://github.com/pallets/flask/pull/2691
CONFIRM:https://github.com/pallets/flask/releases/tag/0.12.3: https://github.com/pallets/flask/releases/tag/0.12.3

Resources

• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-1000656
• https://github.com/pallets/flask/releases/tag/0.12.3
• https://github.com/pallets/flask/pull/2691
• https://security.netapp.com/advisory/ntap-20190221-0001/
• https://lists.debian.org/debian-lts-announce/2019/08/msg00025.html
• https://usn.ubuntu.com/4378-1/