utodesk® AutoCAD®, Advance Steel and Civil 3D®: Out-of-bounds Read
CVE-2022-33884 is a high-severity out-of-bounds read vulnerability in utodesk® AutoCAD®, Advance Steel and Civil 3D®, with a CVSS 3.1 base score of 7.5 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, without any action from a user. Affected utodesk® AutoCAD®, Advance Steel and Civil 3D® versions: 2023, 2022. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 3.12% chance of exploitation within 30 days, higher than 88% of scored CVEs.
High severity with no evidence of exploitation so far.
What to do
- Update Autocad to 2020.1.6 or 2021.1.3 or 2022.1.3 or 2023.1.1, whichever matches your release line, or a later version.
- Update Autocad Advance Steel to 2020.1.6 or 2021.1.3 or 2022.1.3 or 2023.1.1, whichever matches your release line, or a later version.
- Update Autocad Architecture to 2020.1.6 or 2021.1.3 or 2022.1.3 or 2023.1.1, whichever matches your release line, or a later version.
- Read the advisory on autodesk.com for workarounds and exact fixed builds.
- Until you can update, restrict network access to the affected service so it is not reachable from untrusted networks.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| utodesk® AutoCAD®, Advance Steel and Civil 3D® | utodesk® AutoCAD®, Advance Steel and Civil 3D® | 2023, 2022 | Not stated |
| Autodesk | Autocad | 2020 up to, but not including, 2020.1.6; 2021 up to, but not including, 2021.1.3; 2022 up to, but not including, 2022.1.3; 2023 up to, but not including, 2023.1.1 | 2020.1.6, 2021.1.3, 2022.1.3, 2023.1.1 |
| Autodesk | Autocad Advance Steel | 2020 up to, but not including, 2020.1.6; 2021 up to, but not including, 2021.1.3; 2022 up to, but not including, 2022.1.3; 2023 up to, but not including, 2023.1.1 | 2020.1.6, 2021.1.3, 2022.1.3, 2023.1.1 |
| Autodesk | Autocad Architecture | 2020 up to, but not including, 2020.1.6; 2021 up to, but not including, 2021.1.3; 2022 up to, but not including, 2022.1.3; 2023 up to, but not including, 2023.1.1 | 2020.1.6, 2021.1.3, 2022.1.3, 2023.1.1 |
| Autodesk | Autocad Civil 3d | 2020 up to, but not including, 2020.1.6; 2021 up to, but not including, 2021.1.3; 2022 up to, but not including, 2022.1.3; 2023 up to, but not including, 2023.1.1 | 2020.1.6, 2021.1.3, 2022.1.3, 2023.1.1 |
| Autodesk | Autocad Electrical | 2020 up to, but not including, 2020.1.6; 2021 up to, but not including, 2021.1.3; 2022 up to, but not including, 2022.1.3; 2023 up to, but not including, 2023.1.1 | 2020.1.6, 2021.1.3, 2022.1.3, 2023.1.1 |
| Autodesk | Autocad Lt | 2020 up to, but not including, 2020.1.6; 2021 up to, but not including, 2021.1.3; 2022 up to, but not including, 2022.1.3; 2023 up to, but not including, 2023.1.1 | 2020.1.6, 2021.1.3, 2022.1.3, 2023.1.1 |
| Autodesk | Autocad Map 3d | 2020 up to, but not including, 2020.1.6; 2021 up to, but not including, 2021.1.3; 2022 up to, but not including, 2022.1.3; 2023 up to, but not including, 2023.1.1 | 2020.1.6, 2021.1.3, 2022.1.3, 2023.1.1 |
| Autodesk | Autocad Mechanical | 2020 up to, but not including, 2020.1.6; 2021 up to, but not including, 2021.1.3; 2022 up to, but not including, 2022.1.3; 2023 up to, but not including, 2023.1.1 | 2020.1.6, 2021.1.3, 2022.1.3, 2023.1.1 |
| Autodesk | Autocad Mep | 2020 up to, but not including, 2020.1.6; 2021 up to, but not including, 2021.1.3; 2022 up to, but not including, 2022.1.3; 2023 up to, but not including, 2023.1.1 | 2020.1.6, 2021.1.3, 2022.1.3, 2023.1.1 |
| Autodesk | Autocad Plant 3d | 2020 up to, but not including, 2020.1.6; 2021 up to, but not including, 2021.1.3; 2022 up to, but not including, 2022.1.3; 2023 up to, but not including, 2023.1.1 | 2020.1.6, 2021.1.3, 2022.1.3, 2023.1.1 |
Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.
How the severity score breaks down
- Attack vector
- NetworkCan be exploited remotely over a network, including the internet.
- Attack complexity
- LowNo special conditions are needed; the attack works reliably.
- Privileges required
- NoneNo account or login is needed.
- User interaction
- NoneNo action by a victim is required.
- Scope
- UnchangedImpact stays within the vulnerable component.
- Confidentiality
- HighAll data handled by the component can be read.
- Integrity
- NoneNothing can be modified.
- Availability
- NoneAvailability is not affected.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N. Scored by NVD.
Official description
Parsing a maliciously crafted X_B file can force Autodesk AutoCAD 2023 and 2022 to read beyond allocated boundaries. This vulnerability in conjunction with other vulnerabilities could lead to code execution in the context of the current process.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Out-of-bounds Read
The product reads data past the end, or before the beginning, of the intended buffer.
How developers prevent this class of flaw
- Use a language that provides appropriate memory abstractions.
Timeline
- CVE record published.
- Record last changed materially (score, affected products, status or references).
References
Other vulnerabilities in utodesk® AutoCAD®, Advance Steel and Civil 3D®
- 7.8 High severity
- 7.8 High severity
- 7.8 High severity
Recent Out-of-bounds Read vulnerabilities
- 7.1 High severity
- 7.1 High severity
- 7.1 High severity
- 7.8 High severity
- 7.1 High severity
- 8.8 High severity
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