CVE-2019-19274
typed-ast Out-of-bounds Read
7.5
HIGH
CVSS 3.1
EPSS 1.4%
Description
typed_ast 1.3.0 and 1.3.1 has a handle_keywordonly_args out-of-bounds read. An attacker with the ability to cause a Python interpreter to parse Python source (but not necessarily execute it) may be able to crash the interpreter process. This could be a concern, for example, in a web-based service that parses (but does not execute) Python code. (This issue also affected certain Python 3.8.0-alpha prereleases.)
How to fix CVE-2019-19274
To remediate CVE-2019-19274, upgrade the affected package to a fixed version below.
- —upgrade to 1.4.0-1 or later
- —upgrade to 1.3.2 or later
- —upgrade to 156afcb26c198e162504a57caddfe0acd9ed7dce or later
Is CVE-2019-19274 being exploited?
Low — EPSS is 1.4%, meaning exploitation activity has not been observed at scale.
Affected packages (3)
- from 0, < 1.4.0-1
- >= 1.3.0, < 1.3.2
- from 0, < 156afcb26c198e162504a57caddfe0acd9ed7dce, < dc317ac9cff859aa84eeabe03fb5004982545b3b | from 0, < dcfcd146f8e6fc5c2fc16a4c192a0c5f5ca8c53c, < a4d78362397fc3bced6ea80fbc7b5f4827aec55e | from 0, < 1.3.2
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |