Integer underflow leads to out-of-bounds read in pf_cpm_c_data_ind()
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| RT-Labs | P-Net | unaffected |
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No data.
No data.
| Vendor | Product | Versions | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Rt-labs | P-net |
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Vendor Solution
Upgrade to P-Net 1.0.3 or later.
No CVSS v3.1
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.165% probability within 30 days)
| Type | Values Removed | Values Added |
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| Metrics |
ssvc
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| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Rt-labs
Rt-labs p-net |
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| Vendors & Products |
Rt-labs
Rt-labs p-net |
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|---|---|---|
| Description | P-Net before 1.0.3 contains an integer underflow in pf_cpm_c_data_ind(). When handling a received cyclic data frame while the consumer is in the FRUN or RUN state, the offset of the APDU status was computed as the frame length minus 4 using 16-bit arithmetic, without checking that the frame is long enough. A crafted short frame makes the offset wrap around, so the function reads outside the receive buffer. This can cause a crash (denial of service) or disclose memory content. | |
| Title | Integer underflow leads to out-of-bounds read in pf_cpm_c_data_ind() | |
| Weaknesses | CWE-125 CWE-191 |
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| References |
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| Metrics |
cvssV4_0
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