Parasolid V33.1: Out-of-bounds Read
CVE-2022-39153 is a high-severity out-of-bounds read vulnerability in Parasolid V33.1 from Siemens, with a CVSS 3.1 base score of 7.8 out of 10. It can be exploited with local access to the system by an unauthenticated attacker, but only if a user takes part, for example by opening a link or file. Affected Parasolid V33.1 versions: All versions < V33.1.262; All versions >= V33.1.262 < V33.1.263. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 0.26% chance of exploitation within 30 days, which is low compared with other CVEs.
High severity with no evidence of exploitation so far.
What to do
- Update Simcenter Femap to 2022.1.3 or 2022.2.2, whichever matches your release line, or a later version.
- Update Parasolid to 33.1.263 or 34.0.252 or 34.1.242 or 35.0.164, whichever matches your release line, or a later version.
- Read the advisory on cert-portal.siemens.com for workarounds and exact fixed builds.
- Because the attack needs a user to take part, warn users about unexpected links and files related to this product until it is patched.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Siemens | Parasolid V33.1 | All versions < V33.1.262; All versions >= V33.1.262 < V33.1.263 | Not stated |
| Siemens | Parasolid V34.0 | All versions < V34.0.252 | Not stated |
| Siemens | Parasolid V34.1 | All versions < V34.1.242 | Not stated |
| Siemens | Parasolid V35.0 | All versions < V35.0.161; All versions >= V35.0.161 < V35.0.164 | Not stated |
| Siemens | Simcenter Femap V2022.1 | All versions < V2022.1.3 | Not stated |
| Siemens | Simcenter Femap V2022.2 | All versions < V2022.2.2 | Not stated |
| Siemens | Simcenter Femap | 2022.1 up to, but not including, 2022.1.3; 2022.2 up to, but not including, 2022.2.2 | 2022.1.3, 2022.2.2 |
| Siemens | Parasolid | 33.1 up to, but not including, 33.1.263; 34.0 up to, but not including, 34.0.252; 34.1 up to, but not including, 34.1.242; 35.0 up to, but not including, 35.0.164 | 33.1.263, 34.0.252, 34.1.242, 35.0.164 |
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
- LocalThe attacker needs local access or must trick a user into running something.
- Attack complexity
- LowNo special conditions are needed; the attack works reliably.
- Privileges required
- NoneNo account or login is needed.
- User interaction
- RequiredA user must take an action such as opening a file or link.
- Scope
- UnchangedImpact stays within the vulnerable component.
- Confidentiality
- HighAll data handled by the component can be read.
- Integrity
- HighData or code can be modified at will.
- Availability
- HighThe component can be taken down completely.
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H. Scored by NVD.
Official description
A vulnerability has been identified in Parasolid V33.1 (All versions < V33.1.262), Parasolid V33.1 (All versions >= V33.1.262 < V33.1.263), Parasolid V34.0 (All versions < V34.0.252), Parasolid V34.1 (All versions < V34.1.242), Parasolid V35.0 (All versions < V35.0.161), Parasolid V35.0 (All versions >= V35.0.161 < V35.0.164), Simcenter Femap V2022.1 (All versions < V2022.1.3), Simcenter Femap V2022.2 (All versions < V2022.2.2). The affected application is vulnerable to out of bounds read past the end of an allocated buffer when parsing X_T files. This could allow an attacker to execute code in the context of the current process. (ZDI-CAN-18187)
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 Parasolid V33.1
- 7.8 High severity
- 7.8 High severity
- 7.8 High severity
- 7.8 High severity
- 7.8 High severity
- 7.8 High severity
Recent Out-of-bounds Read vulnerabilities
- 7.8 High severity
- 7.8 High severity
- 7.8 High severity
- 7.8 High severity
- 9.1 Critical severity
- 7.8 High severity
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