JT2Go: Out-of-bounds Read
CVE-2023-38682 is a high-severity out-of-bounds read vulnerability in JT2Go 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 JT2Go versions: All versions < V14.2.0.5. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 0.31% 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 Teamcenter Visualization to 14.1.0.10 or 14.2.0.5, 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 | JT2Go | All versions < V14.2.0.5 | Not stated |
| Siemens | Teamcenter Visualization V13.2 | All versions < V13.2.0.14 | Not stated |
| Siemens | Teamcenter Visualization V14.1 | All versions < V14.1.0.10 | Not stated |
| Siemens | Teamcenter Visualization V14.2 | All versions < V14.2.0.5 | Not stated |
| Siemens | Teamcenter Visualization | 14.1 up to, but not including, 14.1.0.10; 14.2 up to, but not including, 14.2.0.5 | 14.1.0.10, 14.2.0.5 |
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.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 3.1 | 7.8 | High | CNA (siemens.com) |
| CVSS 3.1 | 7.8 | High | NVD |
Official description
A vulnerability has been identified in JT2Go (All versions < V14.2.0.5), Teamcenter Visualization V13.2 (All versions < V13.2.0.14), Teamcenter Visualization V14.1 (All versions < V14.1.0.10), Teamcenter Visualization V14.2 (All versions < V14.2.0.5). The affected applications contain an out of bounds read past the end of an allocated structure while parsing specially crafted TIFF files. This could allow an attacker to execute code 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.
- CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: total).
- Record last changed materially (score, affected products, status or references).
References
Other vulnerabilities in JT2Go
- 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
- 7.8 High severity
- 7.8 High severity
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