7.5
HIGH
CVE-2023-49316
Phpseclib Math Binary Field Denial of Service Vulnerability
Description

In Math/BinaryField.php in phpseclib 3 before 3.0.34, excessively large degrees can lead to a denial of service.

INFO

Published Date :

Nov. 27, 2023, 6:15 p.m.

Last Modified :

Dec. 1, 2023, 8:54 p.m.

Remotely Exploitable :

Yes !

Impact Score :

3.6

Exploitability Score :

3.9
Affected Products

The following products are affected by CVE-2023-49316 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 Phpseclib phpseclib
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-2023-49316.

URL Resource
https://github.com/phpseclib/phpseclib/commit/964d78101a70305df33f442f5490f0adb3b7e77f Patch
https://github.com/phpseclib/phpseclib/releases/tag/3.0.34 Release Notes

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-2023-49316 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2023-49316 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 [email protected]

    May. 14, 2024

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

    Dec. 01, 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:N/A:H
    Changed Reference Type https://github.com/phpseclib/phpseclib/commit/964d78101a70305df33f442f5490f0adb3b7e77f No Types Assigned https://github.com/phpseclib/phpseclib/commit/964d78101a70305df33f442f5490f0adb3b7e77f Patch
    Changed Reference Type https://github.com/phpseclib/phpseclib/releases/tag/3.0.34 No Types Assigned https://github.com/phpseclib/phpseclib/releases/tag/3.0.34 Release Notes
    Added CWE NIST CWE-834
    Added CPE Configuration OR *cpe:2.3:a:phpseclib:phpseclib:*:*:*:*:*:*:*:* versions from (including) 3.0.0 up to (excluding) 3.0.34
  • CVE Modified by [email protected]

    Nov. 30, 2023

    Action Type Old Value New Value
    Changed Description In Math/BinaryField.php in phpseclib before 3.0.34, excessively large degrees can lead to a denial of service. In Math/BinaryField.php in phpseclib 3 before 3.0.34, excessively large degrees can lead to a denial of service.
  • CVE Received by [email protected]

    Nov. 27, 2023

    Action Type Old Value New Value
    Added Description In Math/BinaryField.php in phpseclib before 3.0.34, excessively large degrees can lead to a denial of service.
    Added Reference MITRE https://github.com/phpseclib/phpseclib/commit/964d78101a70305df33f442f5490f0adb3b7e77f [No types assigned]
    Added Reference MITRE https://github.com/phpseclib/phpseclib/releases/tag/3.0.34 [No types assigned]
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.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2023-49316 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-2023-49316 weaknesses.

Exploit Prediction

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

0.06 }} 0.01%

score

0.23978

percentile

CVSS31 - Vulnerability Scoring System
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