6.5
MEDIUM CVSS 3.1
CVE-2023-23931
"Cryptography update_into Buffer Mutability Vulnerability"
Description

cryptography is a package designed to expose cryptographic primitives and recipes to Python developers. In affected versions `Cipher.update_into` would accept Python objects which implement the buffer protocol, but provide only immutable buffers. This would allow immutable objects (such as `bytes`) to be mutated, thus violating fundamental rules of Python and resulting in corrupted output. This now correctly raises an exception. This issue has been present since `update_into` was originally introduced in cryptography 1.8.

INFO

Published Date :

Feb. 7, 2023, 9:15 p.m.

Last Modified :

Nov. 21, 2024, 7:47 a.m.

Remotely Exploit :

Yes !

Source :

[email protected]
Affected Products

The following products are affected by CVE-2023-23931 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Cryptography_project cryptography
1 Cryptography.io cryptography
: Total Affected Vendor : 2 | Products : 2
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 3.1 MEDIUM [email protected]
CVSS 3.1 MEDIUM [email protected]
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2023-23931.

URL Resource
https://github.com/pyca/cryptography/pull/8230/commits/94a50a9731f35405f0357fa5f3b177d46a726ab3 Patch
https://github.com/pyca/cryptography/security/advisories/GHSA-w7pp-m8wf-vj6r Exploit Vendor Advisory
https://github.com/pyca/cryptography/pull/8230/commits/94a50a9731f35405f0357fa5f3b177d46a726ab3 Patch
https://github.com/pyca/cryptography/security/advisories/GHSA-w7pp-m8wf-vj6r Exploit Vendor Advisory
https://security.netapp.com/advisory/ntap-20230324-0007/
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2023-23931 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2023-23931 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2023-23931 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2023-23931 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference https://github.com/pyca/cryptography/pull/8230/commits/94a50a9731f35405f0357fa5f3b177d46a726ab3
    Added Reference https://github.com/pyca/cryptography/security/advisories/GHSA-w7pp-m8wf-vj6r
    Added Reference https://security.netapp.com/advisory/ntap-20230324-0007/
  • CPE Deprecation Remap by [email protected]

    Sep. 05, 2024

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:a:cryptography_project:cryptography:*:*:*:*:*:python:*:* versions from (including) 1.8 from (excluding) 39.0.1 OR *cpe:2.3:a:cryptography.io:cryptography:*:*:*:*:*:python:*:* versions from (including) 1.8 from (excluding) 39.0.1
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Initial Analysis by [email protected]

    Feb. 16, 2023

    Action Type Old Value New Value
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
    Changed Reference Type https://github.com/pyca/cryptography/pull/8230/commits/94a50a9731f35405f0357fa5f3b177d46a726ab3 No Types Assigned https://github.com/pyca/cryptography/pull/8230/commits/94a50a9731f35405f0357fa5f3b177d46a726ab3 Patch
    Changed Reference Type https://github.com/pyca/cryptography/security/advisories/GHSA-w7pp-m8wf-vj6r No Types Assigned https://github.com/pyca/cryptography/security/advisories/GHSA-w7pp-m8wf-vj6r Exploit, Vendor Advisory
    Added CPE Configuration OR *cpe:2.3:a:cryptography_project:cryptography:*:*:*:*:*:python:*:* versions from (including) 1.8 up to (excluding) 39.0.1
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
Base CVSS Score: 6.5
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact
Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.74 }} 0.40%

score

0.71871

percentile