CVE-2023-28631
Comrak Unvalidated Byte Array Vulnerability
Description
comrak is a CommonMark + GFM compatible Markdown parser and renderer written in rust. A Comrak AST can be constructed manually by a program instead of parsing a Markdown document with `parse_document`. This AST can then be converted to HTML via `html::format_document_with_plugins`. However, the HTML formatting code assumes that the AST is well-formed. For example, many AST notes contain `[u8]` fields which the formatting code assumes is valid UTF-8 data. Several bugs can be triggered if this is not the case. Version 0.17.0 contains adjustments to the AST, storing strings instead of unvalidated byte arrays. Users are advised to upgrade. Users unable to upgrade may manually validate UTF-8 correctness of all data when assigning to `&[u8]` and `Vec<u8>` fields in the AST. This issue is also tracked as `GHSL-2023-049`.
INFO
Published Date :
March 28, 2023, 9:15 p.m.
Last Modified :
Nov. 21, 2024, 7:55 a.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | [email protected] | ||||
| CVSS 3.1 | CRITICAL | [email protected] |
Solution
- Update the affected rust-askama, rust-askama_shared, and/or rust-comrak packages.
- If unable to update, manually validate UTF-8 correctness of all data when assigning to `&[u8]` and `Vec<u8>` fields in the AST.
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-2023-28631.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2023-28631 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-2023-28631
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-2023-28631 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2023-28631 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/kivikakk/comrak/commit/9ff5f8df0ac951f5742d22a72c39b89a15f56639 Added Reference https://github.com/kivikakk/comrak/security/advisories/GHSA-5r3x-p7xx-x6q5 Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/OUYME2VA555X6567H7ORIJQFN4BVGT6N/ Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/PTWZWCT7KCX2KTXTLPUYZ3EHOONG4X46/ Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/VQ3UBC7LE4VPCMZBTADIBL353CH7CPVV/ -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Apr. 29, 2023
Action Type Old Value New Value Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/VQ3UBC7LE4VPCMZBTADIBL353CH7CPVV/ [No Types Assigned] Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/OUYME2VA555X6567H7ORIJQFN4BVGT6N/ [No Types Assigned] -
CVE Modified by [email protected]
Apr. 29, 2023
Action Type Old Value New Value Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/PTWZWCT7KCX2KTXTLPUYZ3EHOONG4X46/ [No Types Assigned] -
Initial Analysis by [email protected]
Apr. 06, 2023
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/kivikakk/comrak/commit/9ff5f8df0ac951f5742d22a72c39b89a15f56639 No Types Assigned https://github.com/kivikakk/comrak/commit/9ff5f8df0ac951f5742d22a72c39b89a15f56639 Patch Changed Reference Type https://github.com/kivikakk/comrak/security/advisories/GHSA-5r3x-p7xx-x6q5 No Types Assigned https://github.com/kivikakk/comrak/security/advisories/GHSA-5r3x-p7xx-x6q5 Vendor Advisory Added CWE NIST CWE-755 Added CPE Configuration OR *cpe:2.3:a:comrak_project:comrak:*:*:*:*:*:rust:*:* versions up to (excluding) 0.17.0
Vulnerability Scoring Details
Base CVSS Score: 9.8
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.25 }} -0.70%
score
0.48020
percentile