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QSN-8874-1: sg3_utils vulnerability
October 6, 2026
Summary
sg3_utils could be made to run programs as an administrator if it received specially crafted input.
Details
Shaomin Chen discovered that sg3_utils did not properly sanitize device identification data. An attacker could possibly use this issue to execute arbitrary commands.
Affected QuantaStor releases
| Release | Platform | Package | Exposure | Shipped version | Fixed version | Status |
|---|---|---|---|---|---|---|
| 6.9.1.001 | Ubuntu 22.04 LTS | libsgutils2-2 | Internally-facing | 1.47-0.1 | 1.46-1ubuntu0.22.04.2 | Fixed in this release |
| 6.9.1.001 | Ubuntu 22.04 LTS | sg3-utils | Internally-facing | 1.47-0.1 | 1.46-1ubuntu0.22.04.2 | Fixed in this release |
| 6.9.1.001 | Ubuntu 22.04 LTS | sg3-utils-udev | Internally-facing | 1.46-1ubuntu0.22.04.2 | 1.46-1ubuntu0.22.04.2 | Fixed in this release |
| 6.9.0.464 | Ubuntu 22.04 LTS | libsgutils2-2 | Internally-facing | 1.47-0.1 | 1.46-1ubuntu0.22.04.2 | Fixed in this release |
| 6.9.0.464 | Ubuntu 22.04 LTS | sg3-utils | Internally-facing | 1.47-0.1 | 1.46-1ubuntu0.22.04.2 | Fixed in this release |
| 6.9.0.464 | Ubuntu 22.04 LTS | sg3-utils-udev | Internally-facing | 1.46-1ubuntu0.22.04.2 | 1.46-1ubuntu0.22.04.2 | Fixed in this release |
| 6.8.6.015 | Ubuntu 22.04 LTS | libsgutils2-2 | Internally-facing | 1.47-0.1 | 1.46-1ubuntu0.22.04.2 | Fixed in this release |
| 6.8.6.015 | Ubuntu 22.04 LTS | sg3-utils | Internally-facing | 1.47-0.1 | 1.46-1ubuntu0.22.04.2 | Fixed in this release |
| 6.8.6.015 | Ubuntu 22.04 LTS | sg3-utils-udev | Internally-facing | 1.46-1ubuntu0.22.04.1 | 1.46-1ubuntu0.22.04.2 | Fixed by QuantaStor security update |
| 6.8.5.018 | Ubuntu 22.04 LTS | libsgutils2-2 | Internally-facing | 1.47-0.1 | 1.46-1ubuntu0.22.04.2 | Fixed in this release |
| 6.8.5.018 | Ubuntu 22.04 LTS | sg3-utils | Internally-facing | 1.47-0.1 | 1.46-1ubuntu0.22.04.2 | Fixed in this release |
| 6.8.5.018 | Ubuntu 22.04 LTS | sg3-utils-udev | Internally-facing | 1.46-1ubuntu0.22.04.1 | 1.46-1ubuntu0.22.04.2 | Fixed by QuantaStor security update |
| 6.8.4.038 | Ubuntu 22.04 LTS | libsgutils2-2 | Internally-facing | 1.47-0.1 | 1.46-1ubuntu0.22.04.2 | Fixed in this release |
| 6.8.4.038 | Ubuntu 22.04 LTS | sg3-utils | Internally-facing | 1.47-0.1 | 1.46-1ubuntu0.22.04.2 | Fixed in this release |
| 6.8.4.038 | Ubuntu 22.04 LTS | sg3-utils-udev | Internally-facing | 1.46-1ubuntu0.22.04.1 | 1.46-1ubuntu0.22.04.2 | Fixed by QuantaStor security update |
| 6.8.3.018 | Ubuntu 22.04 LTS | libsgutils2-2 | Internally-facing | 1.47-0.1 | 1.46-1ubuntu0.22.04.2 | Fixed in this release |
| 6.8.3.018 | Ubuntu 22.04 LTS | sg3-utils | Internally-facing | 1.47-0.1 | 1.46-1ubuntu0.22.04.2 | Fixed in this release |
| 6.8.3.018 | Ubuntu 22.04 LTS | sg3-utils-udev | Internally-facing | 1.46-1ubuntu0.22.04.1 | 1.46-1ubuntu0.22.04.2 | Fixed by QuantaStor security update |
| 6.8.2.002 | Ubuntu 22.04 LTS | libsgutils2-2 | Internally-facing | 1.47-0.1 | 1.46-1ubuntu0.22.04.2 | Fixed in this release |
| 6.8.2.002 | Ubuntu 22.04 LTS | sg3-utils | Internally-facing | 1.47-0.1 | 1.46-1ubuntu0.22.04.2 | Fixed in this release |
| 6.8.2.002 | Ubuntu 22.04 LTS | sg3-utils-udev | Internally-facing | 1.46-1ubuntu0.22.04.1 | 1.46-1ubuntu0.22.04.2 | Fixed by QuantaStor security update |
| 6.8.1.007 | Ubuntu 22.04 LTS | libsgutils2-2 | Internally-facing | 1.47-0.1 | 1.46-1ubuntu0.22.04.2 | Fixed in this release |
| 6.8.1.007 | Ubuntu 22.04 LTS | sg3-utils | Internally-facing | 1.47-0.1 | 1.46-1ubuntu0.22.04.2 | Fixed in this release |
| 6.8.1.007 | Ubuntu 22.04 LTS | sg3-utils-udev | Internally-facing | 1.46-1ubuntu0.22.04.1 | 1.46-1ubuntu0.22.04.2 | Fixed by QuantaStor security update |
| 6.8.0.205 | Ubuntu 22.04 LTS | libsgutils2-2 | Internally-facing | 1.47-0.1 | 1.46-1ubuntu0.22.04.2 | Fixed in this release |
| 6.8.0.205 | Ubuntu 22.04 LTS | sg3-utils | Internally-facing | 1.47-0.1 | 1.46-1ubuntu0.22.04.2 | Fixed in this release |
| 6.8.0.205 | Ubuntu 22.04 LTS | sg3-utils-udev | Internally-facing | 1.46-1ubuntu0.22.04.1 | 1.46-1ubuntu0.22.04.2 | Fixed by QuantaStor security update |
Internally-facing: only accessible when logged into the QuantaStor console/ssh as the qadmin administrative sudo user; generally lower priority. Externally-facing: part of a service the storage platform presents on the network (or the kernel), so potentially reachable over the network.
CVEs
References
https://ubuntu.com/security/notices/USN-8874-1
https://nvd.nist.gov/vuln/detail/CVE-2026-16313
Update
Fixes marked Fixed by QuantaStor security update are applied by upgrading QuantaStor with security patches included (Upgrade Manager). Fixed package versions:
| Platform | Package | Version |
|---|---|---|
| bionic | sg3-utils | 1.42-2ubuntu1.18.04.2+esm1 |
| Ubuntu 20.04 LTS | sg3-utils | 1.44-1ubuntu2+esm1 |
| Ubuntu 22.04 LTS | sg3-utils | 1.46-1ubuntu0.22.04.2 |
| Ubuntu 24.04 LTS | sg3-utils | 1.46-3ubuntu4.1 |
| resolute | sg3-utils | 1.48-3ubuntu3.2 |
| trusty | sg3-utils | 1.36-1ubuntu1+esm1 |
| xenial | sg3-utils | 1.40-0ubuntu1+esm1 |