Memory safety bugs in kqueue copy-on-fork implementation
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% (0.100% probability within 30 days)
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| CPEs | cpe:2.3:o:freebsd:freebsd:15.1:-:*:*:*:*:*:* cpe:2.3:o:freebsd:freebsd:15.1:p1:*:*:*:*:*:* cpe:2.3:o:freebsd:freebsd:15.1:p2:*:*:*:*:*:* cpe:2.3:o:freebsd:freebsd:15.1:p3:*:*:*:*:*:* |
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| Metrics |
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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| Metrics |
ssvc
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| Description | When copying knotes from a parent kqueue to a child, the copy code did not correctly exclude marker knotes (used internally to track list traversal position) before marking them as in-flux and releasing the kqueue lock. If another thread freed a marker while the lock was dropped, the subsequent in-flux decrement operated on freed memory. An unprivileged local user may be able to exploit these races to escalate privileges. | |
| Title | Memory safety bugs in kqueue copy-on-fork implementation | |
| Weaknesses | CWE-362 CWE-416 |
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| References |
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