high7.5
CVE-2018-1000656
Flask is vulnerable to Denial of Service via incorrect encoding of JSON data
Impact
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.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| pip | flask | < 0.12.3 | 0.12.3 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Palletsprojects | Flask | before 0.12.3 |
| Netapp | Active Iq | All versions |
| Netapp | Hyper Converged Infrastructure | All versions |
| Netapp | Ontap Select Deploy Utility | All versions |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/pallets/flask/pull/2691
- https://github.com/pallets/flask/releases/tag/0.12.3
- https://lists.debian.org/debian-lts-announce/2019/08/msg00025.html
- https://security.netapp.com/advisory/ntap-20190221-0001/
- https://usn.ubuntu.com/4378-1/
- https://github.com/advisories/GHSA-562c-5r94-xh97
- https://nvd.nist.gov/vuln/detail/CVE-2018-1000656
- https://github.com/pallets/flask/commit/b178e89e4456e777b1a7ac6d7199052d0dfdbbbe
- https://github.com/pypa/advisory-database/tree/main/vulns/flask/PYSEC-2018-66.yaml
- https://security.netapp.com/advisory/ntap-20190221-0001
- https://usn.ubuntu.com/4378-1