CVE-2023-7258: gvisor DoS — Fix

Description

A denial of service exists in Gvisor Sandbox where a bug in reference counting code in mount point tracking could lead to a panic, making it possible for an attacker running as root and with permission to mount volumes to kill the sandbox. We recommend upgrading past commit 6a112c60a257dadac59962e0bc9e9b5aee70b5b6

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CVSS v3.1 Score

4.8

MEDIUM

CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:N/A:H

Weakness Type (CWE)

CWE-400 Uncontrolled Resource Consumption

Affected Products

Vendor	Product	Versions
google	gvisor	< 20231204.0

References

Advisories & Patches

https://github.com/google/gvisor/commit/6a112c60a257dadac59962e0bc9e9b5aee70b5b6 https://github.com/google/gvisor/commit/6a112c60a257dadac59962e0bc9e9b5aee70b5b6

Frequently Asked Questions

What is CVE-2023-7258? +

A denial of service exists in Gvisor Sandbox where a bug in reference counting code in mount point tracking could lead to a panic, making it possible for an attacker running as root and with permission to mount volumes to kill the sandbox. We recommend upgrading past commit 6a112c60a257dadac59962e0bc9e9b5aee70b5b6 It has a CVSS v3.1 base score of 4.8 (MEDIUM).

How severe is CVE-2023-7258? +

CVE-2023-7258 has a CVSS v3.1 score of 4.8 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2023-7258? +

CVE-2023-7258 affects products from google, specifically: gvisor. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2023-7258? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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