5.3
MEDIUM
CVE-2024-34702
Botan X.509 Certificate Denial of Service Vulnerability
Description

Botan is a C++ cryptography library. X.509 certificates can identify elliptic curves using either an object identifier or using explicit encoding of the parameters. Prior to 3.5.0 and 2.19.5, checking name constraints in X.509 certificates is quadratic in the number of names and name constraints. An attacker who presented a certificate chain which contained a very large number of names in the SubjectAlternativeName, signed by a CA certificate which contained a large number of name constraints, could cause a denial of service. The problem has been addressed in Botan 3.5.0 and a partial backport has also been applied and is included in Botan 2.19.5.

INFO

Published Date :

July 8, 2024, 5:15 p.m.

Last Modified :

July 9, 2024, 6:19 p.m.

Remotely Exploitable :

Yes !

Impact Score :

1.4

Exploitability Score :

3.9
Affected Products

The following products are affected by CVE-2024-34702 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 Botan_project botan

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-2024-34702 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2024-34702 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 Received by [email protected]

    Jul. 08, 2024

    Action Type Old Value New Value
    Added Description Botan is a C++ cryptography library. X.509 certificates can identify elliptic curves using either an object identifier or using explicit encoding of the parameters. Prior to 3.5.0 and 2.19.5, checking name constraints in X.509 certificates is quadratic in the number of names and name constraints. An attacker who presented a certificate chain which contained a very large number of names in the SubjectAlternativeName, signed by a CA certificate which contained a large number of name constraints, could cause a denial of service. The problem has been addressed in Botan 3.5.0 and a partial backport has also been applied and is included in Botan 2.19.5.
    Added Reference GitHub, Inc. https://github.com/randombit/botan/security/advisories/GHSA-5gg9-hqpr-r58j [No types assigned]
    Added Reference GitHub, Inc. https://github.com/randombit/botan/pull/4034 [No types assigned]
    Added Reference GitHub, Inc. https://github.com/randombit/botan/pull/4045 [No types assigned]
    Added Reference GitHub, Inc. https://github.com/randombit/botan/pull/4047 [No types assigned]
    Added Reference GitHub, Inc. https://github.com/randombit/botan/pull/4052 [No types assigned]
    Added Reference GitHub, Inc. https://github.com/randombit/botan/pull/4186 [No types assigned]
    Added Reference GitHub, Inc. https://github.com/randombit/botan/pull/4187 [No types assigned]
    Added Reference GitHub, Inc. https://github.com/randombit/botan/commit/21dccc8fef18c165ba3301d850ac61521f85637e [No types assigned]
    Added Reference GitHub, Inc. https://github.com/randombit/botan/commit/39535f13c322f56aa3da2f44b2b6abb8619a82ac [No types assigned]
    Added Reference GitHub, Inc. https://github.com/randombit/botan/commit/477822a2d10f02d8ba46c9d8a5132f25843f5cc1 [No types assigned]
    Added Reference GitHub, Inc. https://github.com/randombit/botan/commit/7606d70d3a2ac7114476ec2651ca0243c4536fdf [No types assigned]
    Added Reference GitHub, Inc. https://github.com/randombit/botan/commit/c3264821b9f6286ee4e6e3e06826f6b7177e6d41 [No types assigned]
    Added Reference GitHub, Inc. https://github.com/randombit/botan/commit/ff704b12e6fa351aaedd07bffdc91722e84586b8 [No types assigned]
    Added CWE GitHub, Inc. CWE-405
    Added CVSS V3.1 GitHub, Inc. AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
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-2024-34702 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-2024-34702 weaknesses.

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability