Fluid Attacks Database

Description

Flask is vulnerable to Denial of Service via incorrect encoding of JSON data 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.

Mitigation

Update Impact

Minimal update. May introduce new vulnerabilities or breaking changes.

Ecosystem	Component	Affected version	Patched versions
pypi	flask	>=0 <0.12.3	0.12.3
debian 13	flask	>=0 <1.0.2-1	1.0.2-1
debian 12	flask	>=0 <1.0.2-1	1.0.2-1
debian 14	flask	>=0 <1.0.2-1	1.0.2-1
debian 11	flask	>=0 <1.0.2-1	1.0.2-1

Aliases

1. CVE-2018-10006562. NVD-2018-10006563. OSV-2018-10006564. OSV-DEBIAN-2018-10006565. GHSA-562c-5r94-xh976. GCVE-2018-10006567. lists.debian.org8. SECURITY-TRACKER-CVE-2018-1000656

References

1. https://github.com/pallets/flask/pull/26912. https://github.com/pallets/flask/commit/b178e89e4456e777b1a7ac6d7199052d0dfdbbbe3. https://github.com/pallets/flask/releases/tag/0.12.34. https://github.com/pypa/advisory-database/tree/main/vulns/flask/PYSEC-2018-66.yaml5. https://security.netapp.com/advisory/ntap-20190221-00016. https://usn.ubuntu.com/4378-1

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