CVE-2024-45402
Picotls TLS Free Double-Free Vulnerability
Description
Picotls is a TLS protocol library that allows users select different crypto backends based on their use case. When parsing a spoofed TLS handshake message, picotls (specifically, bindings within picotls that call the crypto libraries) may attempt to free the same memory twice. This double free occurs during the disposal of multiple objects without any intervening calls to malloc Typically, this triggers the malloc implementation to detect the error and abort the process. However, depending on the internals of malloc and the crypto backend being used, the flaw could potentially lead to a use-after-free scenario, which might allow for arbitrary code execution. The vulnerability is addressed with commit 9b88159ce763d680e4a13b6e8f3171ae923a535d.
INFO
Published Date :
Oct. 11, 2024, 3:15 p.m.
Last Modified :
Nov. 12, 2024, 8:02 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
5.9
Exploitability Score :
3.9
Public PoC/Exploit Available at Github
CVE-2024-45402 has a 1 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
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-2024-45402.
| URL | Resource |
|---|---|
| https://github.com/h2o/picotls/commit/9b88159ce763d680e4a13b6e8f3171ae923a535d | Patch |
| https://github.com/h2o/picotls/security/advisories/GHSA-w7c8-wjx9-vvvv | Vendor Advisory |
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).
None
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2024-45402 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2024-45402 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.
-
Initial Analysis by [email protected]
Nov. 12, 2024
Action Type Old Value New Value Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://github.com/h2o/picotls/commit/9b88159ce763d680e4a13b6e8f3171ae923a535d No Types Assigned https://github.com/h2o/picotls/commit/9b88159ce763d680e4a13b6e8f3171ae923a535d Patch Changed Reference Type https://github.com/h2o/picotls/security/advisories/GHSA-w7c8-wjx9-vvvv No Types Assigned https://github.com/h2o/picotls/security/advisories/GHSA-w7c8-wjx9-vvvv Vendor Advisory Added CPE Configuration OR *cpe:2.3:a:dena:picotls:*:*:*:*:*:*:*:* versions from (including) 2024-08-12 up to (excluding) 2024-10-10 -
CVE Received by [email protected]
Oct. 11, 2024
Action Type Old Value New Value Added Description Picotls is a TLS protocol library that allows users select different crypto backends based on their use case. When parsing a spoofed TLS handshake message, picotls (specifically, bindings within picotls that call the crypto libraries) may attempt to free the same memory twice. This double free occurs during the disposal of multiple objects without any intervening calls to malloc Typically, this triggers the malloc implementation to detect the error and abort the process. However, depending on the internals of malloc and the crypto backend being used, the flaw could potentially lead to a use-after-free scenario, which might allow for arbitrary code execution. The vulnerability is addressed with commit 9b88159ce763d680e4a13b6e8f3171ae923a535d. Added Reference GitHub, Inc. https://github.com/h2o/picotls/security/advisories/GHSA-w7c8-wjx9-vvvv [No types assigned] Added Reference GitHub, Inc. https://github.com/h2o/picotls/commit/9b88159ce763d680e4a13b6e8f3171ae923a535d [No types assigned] Added CWE GitHub, Inc. CWE-415 Added CVSS V3.1 GitHub, Inc. AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2024-45402 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-2024-45402
weaknesses.