Medium severity · published Jun 7, 2023
CVE-2023-33595
CPython v3.12.0 alpha 7 was discovered to contain a heap use-after-free via the function ascii_decode at /Objects/unicodeobject.c
5.5
CVSS
0.4%
EPSS
No
On KEV
Description
CPython v3.12.0 alpha 7 was discovered to contain a heap use-after-free via the function ascii_decode at /Objects/unicodeobject.c.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 31% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
PY
Python · Python
3.12.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-33595
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-33595
Issue Tracking
https://github.com/python/cpython/issues/103824
Patch
https://github.com/python/cpython/pull/103993/commits/c120bc2d354ca3d27d0c7a53bf65574ddaabaf3a
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