CVE-2023-27484
Crossplane Runtime Excessive Memory Vulnerability
Description
crossplane-runtime is a set of go libraries used to build Kubernetes controllers in Crossplane and its related stacks. In affected versions an already highly privileged user able to create or update Compositions can specify an arbitrarily high index in a patch's `ToFieldPath`, which could lead to excessive memory usage once such Composition is selected for a Composite resource. Compositions allow users to specify patches inserting elements into arrays at an arbitrary index. When a Composition is selected for a Composite Resource, patches are evaluated and if a specified index is greater than the current size of the target slice, Crossplane will grow that slice up to the specified index, which could lead to an excessive amount of memory usage and therefore the Pod being OOM-Killed. The index is already capped to the maximum value for a uint32 (4294967295) when parsed, but that is still an unnecessarily large value. This issue has been addressed in versions 1.11.2, 1.10.3, and 1.9.2. Users are advised to upgrade. Users unable to upgrade can restrict write privileges on Compositions to only admin users as a workaround.
INFO
Published Date :
March 9, 2023, 9:15 p.m.
Last Modified :
March 17, 2023, 3:03 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
4.0
Exploitability Score :
1.7
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-2023-27484
.
URL | Resource |
---|---|
https://github.com/crossplane/crossplane/security/advisories/GHSA-v829-x6hh-cqfq | 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-2023-27484
vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2023-27484
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]
Mar. 17, 2023
Action Type Old Value New Value Added CVSS V3.1 NIST AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H Changed Reference Type https://github.com/crossplane/crossplane/security/advisories/GHSA-v829-x6hh-cqfq No Types Assigned https://github.com/crossplane/crossplane/security/advisories/GHSA-v829-x6hh-cqfq Vendor Advisory Added CWE NIST CWE-400 Added CPE Configuration OR *cpe:2.3:a:crossplane:crossplane:*:*:*:*:*:*:*:* versions from (including) 1.9.0 up to (excluding) 1.9.2 *cpe:2.3:a:crossplane:crossplane:*:*:*:*:*:*:*:* versions from (including) 1.10.0 up to (excluding) 1.10.3 *cpe:2.3:a:crossplane:crossplane:*:*:*:*:*:*:*:* versions from (including) 1.11.0 up to (excluding) 1.11.2
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2023-27484
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-2023-27484
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.11 }} 0.03%
score
0.44188
percentile