Vulnerability Details : CVE-2021-47310
In the Linux kernel, the following vulnerability has been resolved:
net: ti: fix UAF in tlan_remove_one
priv is netdev private data and it cannot be
used after free_netdev() call. Using priv after free_netdev()
can cause UAF bug. Fix it by moving free_netdev() at the end of the
function.
Products affected by CVE-2021-47310
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:5.14:rc1:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-47310
0.04%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 10 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-47310
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
7.8
|
HIGH | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
1.8
|
5.9
|
NIST | 2024-12-26 |
CWE ids for CVE-2021-47310
-
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-47310
-
https://git.kernel.org/stable/c/b7e5563f2a7862a9e4796abb9908b092f677e3c1
net: ti: fix UAF in tlan_remove_one - kernel/git/stable/linux.git - Linux kernel stable treePatch
-
https://git.kernel.org/stable/c/a0a817b2d308fac090a05cbbe80988e073ac5193
net: ti: fix UAF in tlan_remove_one - kernel/git/stable/linux.git - Linux kernel stable treePatch
-
https://git.kernel.org/stable/c/a18a8d9cfbb112ad72e625372849adc3986fd6bf
net: ti: fix UAF in tlan_remove_one - kernel/git/stable/linux.git - Linux kernel stable treePatch
-
https://git.kernel.org/stable/c/0336f8ffece62f882ab3012820965a786a983f70
net: ti: fix UAF in tlan_remove_one - kernel/git/stable/linux.git - Linux kernel stable treePatch
-
https://git.kernel.org/stable/c/f2a062fcfe1d6f1b0a86fa76ae21c277d65f4405
net: ti: fix UAF in tlan_remove_one - kernel/git/stable/linux.git - Linux kernel stable treePatch
-
https://git.kernel.org/stable/c/0538b0ab7d2c396e385694228c7cdcd2d2c514e9
net: ti: fix UAF in tlan_remove_one - kernel/git/stable/linux.git - Linux kernel stable treePatch
-
https://git.kernel.org/stable/c/c263ae8c7e4c482387de5e6c89e213f8173fe8b6
net: ti: fix UAF in tlan_remove_one - kernel/git/stable/linux.git - Linux kernel stable treePatch
-
https://git.kernel.org/stable/c/93efab0ef2a607fff9166d447c4035f98b5db342
net: ti: fix UAF in tlan_remove_one - kernel/git/stable/linux.git - Linux kernel stable treePatch
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