JT2Go: Out-of-bounds Read
CVE-2023-7066 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. The record lists versions V14.3.0.8, 14.3.0.8 as the first without the flaw, so updating JT2Go to one of those releases or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 0.17% 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 JT2Go to V14.3.0.8 or 14.3.0.8, whichever matches your release line, or a later version.
- Update Teamcenter Visualization to V14.1.0.14 or V14.2.0.10 or V14.3.0.8 or V2312.0002, whichever matches your release line, or a later version.
- 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 | before V14.3.0.8; before 14.3.0.8 | V14.3.0.8, 14.3.0.8 |
| Siemens | Teamcenter Visualization | before V14.1.0.14; before V14.2.0.10; before V14.3.0.8; before V2312.0002; before 14.1.0.14; before 14.2.0.10; before 14.3.0.8; before 2312.0002 | V14.1.0.14, V14.2.0.10, V14.3.0.8, V2312.0002, 14.1.0.14, 14.2.0.10 |
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 CNA (hq.dhs.gov).
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 4.0 | 7.3 | High | CNA (hq.dhs.gov) |
| CVSS 3.1 | 7.8 | High | CNA (hq.dhs.gov) |
Official description
The affected applications contain an out of bounds read past the end of an allocated structure while parsing specially crafted PDF 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 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
- 9.8 Critical severity
- 7.8 High severity
- 8.8 High severity
- 8.8 High severity
- 7.1 High severity
- 7.8 High severity
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