Home/CVE/The Pallets Project flask version Before 0.12.3 contains a CWE-20: Improper Input Validation vulnerability in flask that
CVE

CVE-2018-1000656

The Pallets Project flask version Before 0.12.3 contains a CWE-20: Improper Input Validation vulnerability in flask that

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.

HIGH · CVSS 7.5 EPSS 0.00575
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-20Improper Input Validation
▤

Affected Products & Versions

4
palletsprojects flask< 0.12.3
netapp active iqall versions
netapp hyper converged infrastructureall versions
netapp ontap select deploy utilityall versions
▤

Affected Packages

1
Language-ecosystem packages (from OSV) tied to this CVE, with the version that fixes it - the dependency-level detail NVD doesn’t carry.
PyPI flask HIGH fixed in 0.12.3
▣

Scoring & Timeline

7.5
HIGH · CVSS v3.0 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD20 Aug 2018 · 07:31 PM
CVSS VectorCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
⚑

Vendor Advisories

6
suse-csafSUSE-SU-2023:1928-1
suse-csafSUSE-SU-2020:1901-1
usnUSN-4378-1
suse-csafopenSUSE-SU-2019:1112-1
suse-csafSUSE-SU-2019:0657-1
🔗

References & Sources

5
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://github.com/pallets/flask/pull/2691Issue TrackingPatchThird Party Advisory
https://github.com/pallets/flask/releases/tag/0.12.3Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/08/msg00025.html
https://security.netapp.com/advisory/ntap-20190221-0001/PatchThird Party Advisory
https://usn.ubuntu.com/4378-1/
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