PT-2019-15801 · Python+1 · Typed Ast+1

Blarsen + 1 · Published 2019-11-26 · Updated 2020-06-10 · CVE-2019-19274

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions typed ast versions 1.3.0 through 1.3.1

Description The issue is related to an out-of-bounds read in the handle keywordonly args function. An attacker who can 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 in services that parse Python code without executing it, such as web-based services.

Recommendations For typed ast versions 1.3.0 through 1.3.1, at the moment, there is no information about a newer version that contains a fix for this vulnerability.

Out of bounds Read

Weakness Enumeration

CWE-125

Related Identifiers

CVE-2019-19274

GHSA-M3JW-62M7-JJCM

MGASA-2020-0249

OPENSUSE-SU-2020:0567-1

OPENSUSE-SU-2020:0609-1

OPENSUSE-SU-2020_0567-1

PYSEC-2019-130

Affected Products

Suse

Typed Ast

References · 32

• https://github.com/python/cpython/commit/dcfcd146f8e6fc5c2fc16a4c192a0c5f5ca8c53c · Patch
• https://github.com/python/cpython/commit/a4d78362397fc3bced6ea80fbc7b5f4827aec55e · Patch
• https://github.com/python/typed_ast/commit/dc317ac9cff859aa84eeabe03fb5004982545b3b · Patch
• https://github.com/python/typed_ast/commit/156afcb26c198e162504a57caddfe0acd9ed7dce · Patch
• https://osv.dev/vulnerability/MGASA-2020-0249 · Vendor Advisory
• https://bugs.python.org/issue36495 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2019-19274 · Security Note
• https://osv.dev/vulnerability/GHSA-m3jw-62m7-jjcm · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LG5H4Q6LFVRX7SFXLBEJMNQFI4T5SCEA · Vendor Advisory
• https://ubuntu.com/security/CVE-2019-19274 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2020:0567-1 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2019-19274 · Security Note
• https://osv.dev/vulnerability/PYSEC-2019-130 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2020:0609-1 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2019-19274 · Vendor Advisory