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PYSEC-2018-66

Quick fix

PYSEC-2018-66 — flask: upgrade to the fixed version with the command below.

pip install --upgrade 'flask>=0.12.3'

Details

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. NOTE: this may overlap CVE-2019-1010083.

Are you affected?

Enter the version of the package you're using.

Affected packages

PyPI/flask

Introduced in: 0Fixed in: 0.12.3

Fixpip install --upgrade 'flask>=0.12.3'

References

https://github.com/pallets/flask/releases/tag/0.12.3[WEB]
https://github.com/pallets/flask/pull/2691[WEB]
https://security.netapp.com/advisory/ntap-20190221-0001/[ADVISORY]
https://lists.debian.org/debian-lts-announce/2019/08/msg00025.html[WEB]
https://usn.ubuntu.com/4378-1/[WEB]
https://github.com/advisories/GHSA-562c-5r94-xh97[ADVISORY]