Staging Environment: Content and features may be unstable or change without notice.
Advisory details: github_osv / GHSA-pf3p-v9xp-mrvf
Advisory ID github_osv/GHSA-pf3p-v9xp-mrvf
Aliases CVE-2019-16227
Summary py-lmdb Invalid write operation An issue was discovered in py-lmdb 0.97. For certain values of `mn_flags`, `mdb_cursor_set` triggers a memcpy with an invalid write operation within `mdb_xcursor_init1`. NOTE: this outcome occurs when accessing a `data.mdb` file supplied by an attacker.
Status Published
Exploitability 0.5
Weighted Severity 8.8
Risk 4.4
Affected and Fixed Packages Package Details
Introduced and Fixed Package Commit Patches Package Commit Patches Details
Weaknesses (1)
CWE-787 Out-of-bounds Write
System Score Found at
cvssv3.1 9.8 https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/05/GHSA-pf3p-v9xp-mrvf/GHSA-pf3p-v9xp-mrvf.json
cvssv4 9.3 https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/05/GHSA-pf3p-v9xp-mrvf/GHSA-pf3p-v9xp-mrvf.json
generic_textual CRITICAL
Reference id Reference type URL
https://github.com/jnwatson/py-lmdb
https://github.com/pypa/advisory-database/tree/main/vulns/lmdb/PYSEC-2019-239.yaml
https://github.com/TeamSeri0us/pocs/tree/master/lmdb/lmdb%20memcpy%20illegal%20dst
https://nvd.nist.gov/vuln/detail/CVE-2019-16227
https://pypi.org/project/lmdb
No exploits are available.

No EPSS data available for this advisory.

Patch URL
There are no known patches.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/05/GHSA-pf3p-v9xp-mrvf/GHSA-pf3p-v9xp-mrvf.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N Found at https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/05/GHSA-pf3p-v9xp-mrvf/GHSA-pf3p-v9xp-mrvf.json
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

local

physical

low

high

none

present

none

low

high

none

passive

active

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none

There are no SSVC decisions available.