CVE-2023-37475
Hamba Avro Memory Exhaustion Denial of Service (DoS) Vulnerability
Description
Hamba avro is a go lang encoder/decoder implementation of the avro codec specification. In affected versions a well-crafted string passed to avro's `github.com/hamba/avro/v2.Unmarshal()` can throw a `fatal error: runtime: out of memory` which is unrecoverable and can cause denial of service of the consumer of avro. The root cause of the issue is that avro uses part of the input to `Unmarshal()` to determine the size when creating a new slice and hence an attacker may consume arbitrary amounts of memory which in turn may cause the application to crash. This issue has been addressed in commit `b4a402f4` which has been included in release version `2.13.0`. Users are advised to upgrade. There are no known workarounds for this vulnerability.
INFO
Published Date :
July 17, 2023, 5:15 p.m.
Last Modified :
July 26, 2023, 9:35 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
3.9
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-2023-37475.
| URL | Resource |
|---|---|
| https://github.com/hamba/avro/commit/b4a402f41cf44b6094b5131286830ba9bb1eb290 | Patch |
| https://github.com/hamba/avro/security/advisories/GHSA-9x44-9pgq-cf45 | Exploit 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).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2023-37475 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2023-37475 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]
Jul. 26, 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/hamba/avro/commit/b4a402f41cf44b6094b5131286830ba9bb1eb290 No Types Assigned https://github.com/hamba/avro/commit/b4a402f41cf44b6094b5131286830ba9bb1eb290 Patch Changed Reference Type https://github.com/hamba/avro/security/advisories/GHSA-9x44-9pgq-cf45 No Types Assigned https://github.com/hamba/avro/security/advisories/GHSA-9x44-9pgq-cf45 Exploit, Vendor Advisory Added CPE Configuration OR *cpe:2.3:a:avro_project:avro:*:*:*:*:*:go:*:* versions up to (excluding) 2.13.0
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2023-37475 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-2023-37475
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.08 }} 0.01%
score
0.36790
percentile