jnwatson/py-lmdb · Security
LMDB invalid write
- GHSA ID
- GHSA-r8g9-w4f3-9crm
- CVE ID
- CVE-2019-16226
- Severity
- high
- Published
- Updated
- CVSS
- 7.5 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- CVSS v3
- 7.5 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- CVSS v4
- 8.7 · CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Description
An issue was discovered in py-lmdb 0.97. mdb_node_del does not validate a memmove in the case of an unexpected node->mn_hi, leading to an invalid write operation.
CWEs
- CWE-787 · Out-of-bounds Write
References
- https://nvd.nist.gov/vuln/detail/CVE-2019-16226 ↗
- https://github.com/TeamSeri0us/pocs/tree/master/lmdb/lmdb%20memory%20corruption%20vuln ↗
- https://github.com/jnwatson/py-lmdb/issues/210 ↗
- https://github.com/LMDB/lmdb/blob/mdb.master/libraries/liblmdb/mdb.c#L8443-L8498 ↗
- https://github.com/pypa/advisory-database/tree/main/vulns/lmdb/PYSEC-2019-238.yaml ↗
- https://pypi.org/project/lmdb ↗
- https://github.com/advisories/GHSA-r8g9-w4f3-9crm ↗