CVE-2019-16228
CVE-2019-16228 is a high-severity vulnerability in Py-lmdb Project Py-lmdb with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-369.
Key facts
- Severity: High (CVSS 3.x base score 7.5)
- CVSS v2: 5.0
- EPSS exploit prediction: 2% (76th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-369
- Affected product: Py-lmdb Project Py-lmdb
- Published:
- Last modified:
Description
An issue was discovered in py-lmdb 0.97. There is a divide-by-zero error in the function mdb_env_open2 if mdb_env_read_header obtains a zero value for a certain size field. NOTE: this outcome occurs when accessing a data.mdb file supplied by an attacker.
Frequently asked questions
- What is CVE-2019-16228?
- An issue was discovered in py-lmdb 0.97. There is a divide-by-zero error in the function mdb_env_open2 if mdb_env_read_header obtains a zero value for a certain size field. NOTE: this outcome occurs when accessing a data.mdb file supplied by an attacker.
- How severe is CVE-2019-16228?
- CVE-2019-16228 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
- Is CVE-2019-16228 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2019-16228?
- CVE-2019-16228 affects Py-lmdb Project Py-lmdb. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2019-16228?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2019-16228 published?
- CVE-2019-16228 was published on 2019-09-11 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:py-lmdb_project:py-lmdb:*:*:*:*:*:*:*:*
More vulnerabilities in Py-lmdb Project Py-lmdb
- CVE-2019-16227 — Critical (CVSS 9.8): An issue was discovered in py-lmdb 0.97. For certain values of mn_flags, mdb_cursor_set triggers a memcpy with an…
- CVE-2019-16225 — Critical (CVSS 9.8): An issue was discovered in py-lmdb 0.97. For certain values of mp_flags, mdb_page_touch does not properly set up…
- CVE-2019-16224 — Critical (CVSS 9.8): An issue was discovered in py-lmdb 0.97. For certain values of md_flags, mdb_node_add does not properly set up a memcpy…
- CVE-2019-16226 — High (CVSS 7.5): An issue was discovered in py-lmdb 0.97. mdb_node_del does not validate a memmove in the case of an unexpected…
All CVEs affecting Py-lmdb Project Py-lmdb →
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