Integer overflow in vt(4) CONS_HISTORY ioctl
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
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| FreeBSD | FreeBSD | unknown |
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Configuration 1 [-]
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No data.
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| Freebsd | Freebsd |
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No CVSS v4.0
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.153% probability within 30 days)
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cvssV3_1
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| First Time appeared |
Freebsd
Freebsd freebsd |
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| Vendors & Products |
Freebsd
Freebsd freebsd |
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| Description | The CONS_HISTORY ioctl handler did not adequately validate the requested history size. A large value caused an integer overflow in the buffer size calculation, resulting in a heap allocation smaller than expected. Subsequent initialization of the buffer wrote beyond the end of the allocation. An unprivileged local user with access to a vt(4) device can trigger an out-of-bounds write in the kernel, potentially escalating privileges. | |
| Title | Integer overflow in vt(4) CONS_HISTORY ioctl | |
| Weaknesses | CWE-190 | |
| References |
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