CVE-2024-6232: Regular-expression DoS when parsing TarFile headers

High severity · published Sep 3, 2024

CVE-2024-6232

Regular-expression DoS when parsing TarFile headers

7.5

CVSS

2.2%

EPSS

On KEV

Description

There is a MEDIUM severity vulnerability affecting CPython. Regular expressions that allowed excessive backtracking during tarfile.TarFile header parsing are vulnerable to ReDoS via specifically-crafted tar archives.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack vector

Network

Complexity

Low

Privileges

None

User interaction

None

Confidentiality

None

Integrity

None

Availability

High

Scope

Unchanged

Exploitation

Is it being used?

Exploit prediction (EPSS)2.2% · higher than 82% of CVEs

Exploited in the wildNo evidence yet

CISA KEVNot listed

Ransomware campaign useNot known

Affected products

Which versions

CPython · Python Software Foundation

before 3.8.20; 3.9.0 before 3.9.20; 3.10.0 before 3.10.15; 3.11.0 before 3.11.10; 3.12.0 before 3.12.6; 3.13.0a1 before 3.13.0rc2 · source: vendor, CISA

Python · Python

before 3.8.20; 3.9.0 before 3.9.20; 3.10.0 before 3.10.15; 3.11.0 before 3.11.10; 3.12.0 before 3.12.6; 3.13.0; +11 more · source: NVD

Affected product

CPython

Python Software Foundation

All CPython CVEs

References

NVD

https://nvd.nist.gov/vuln/detail/CVE-2024-6232

CVE.org

https://www.cve.org/CVERecord?id=CVE-2024-6232

Patch