Is CVE-2023-41039 in the CISA KEV catalog?

No. CVE-2023-41039 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2023-41039?

CVE-2023-41039 has a CVSS v3 base score of 8.3 (HIGH).

What is the EPSS score for CVE-2023-41039?

CVE-2023-41039 has an EPSS score of 0.64% (46th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2023-41039?

Upgrade restrictedpython on debian 13 to 6.2-1 or later. Fixes are available for 3 affected products.

CVE & CISA-KEV Catalog

CVE-2023-41039

HIGH

8.3

CVSS v3

NVD

Description

RestrictedPython is a restricted execution environment for Python to run untrusted code. Python's "format" functionality allows someone controlling the format string to "read" all objects accessible through recursive attribute lookup and subscription from objects he can access. This can lead to critical information disclosure. With `RestrictedPython`, the format functionality is available via the `format` and `format_map` methods of `str` (and `unicode`) (accessed either via the class or its instances) and via `string.Formatter`. All known versions of `RestrictedPython` are vulnerable. This issue has been addressed in commit `4134aedcff1` which has been included in the 5.4 and 6.2 releases. Users are advised to upgrade. There are no known workarounds for this vulnerability.

CWE-74Injection

How to fix

Remediation Available

restrictedpythonDebian

Fixed in:6.2-1CVE-2023-41039

python3-restrictedpythonUbuntu

Fixed in:4.0~b3-2ubuntu0.1~esm1USN-7355-1

Fixed in:4.0~b3-3ubuntu0.1~esm1USN-7355-1

Fixed in:6.2-1ubuntu0.24.04.1~esm1USN-7355-1

restrictedpythonUbuntu

Fixed in:4.0~b3-2ubuntu0.1~esm1USN-7355-1

Fixed in:4.0~b3-3ubuntu0.1~esm1USN-7355-1

Fixed in:6.2-1ubuntu0.24.04.1~esm1USN-7355-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredHigh

User InteractionRequired

ScopeChanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityLow

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

Exploit Intelligence

0.64%probability of exploitation in 30 days

46thpercentile

Moderate risk: more likely to be exploited than 46% of all known CVEs.

References

Patch1

github.com

Vendor Advisory1

github.com

Related Vulnerabilities

Other CWE-74 (Injection) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2013-2251	Critical	9.8	100%	KEV	Fix
CVE-2023-22527	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2019-2725	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2022-46169	Critical	9.8	100%	KEV	Fix
CVE-2022-35914	Critical	9.8	100%	KEV	-
CVE-2019-17558	High	7.5	99%	KEV	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.