Vulnerability Details : CVE-2021-47485
In the Linux kernel, the following vulnerability has been resolved:
IB/qib: Protect from buffer overflow in struct qib_user_sdma_pkt fields
Overflowing either addrlimit or bytes_togo can allow userspace to trigger
a buffer overflow of kernel memory. Check for overflows in all the places
doing math on user controlled buffers.
Vulnerability category: Overflow
Products affected by CVE-2021-47485
- 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:5.15:rc1:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:5.15:rc2:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:5.15:rc3:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:5.15:rc4:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:5.15:rc5:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:5.15:rc6:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:5.15:rc7:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-47485
0.04%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 7 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-47485
| 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 | 2025-01-06 |
CWE ids for CVE-2021-47485
-
The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-47485
-
https://git.kernel.org/stable/c/0f8cdfff06829a0b0348b6debc29ff6a61967724
IB/qib: Protect from buffer overflow in struct qib_user_sdma_pkt fields - kernel/git/stable/linux.git - Linux kernel stable treePatch
-
https://git.kernel.org/stable/c/3f57c3f67fd93b4da86aeffea1ca32c484d054ad
IB/qib: Protect from buffer overflow in struct qib_user_sdma_pkt fields - kernel/git/stable/linux.git - Linux kernel stable treePatch
-
https://git.kernel.org/stable/c/d39bf40e55e666b5905fdbd46a0dced030ce87be
IB/qib: Protect from buffer overflow in struct qib_user_sdma_pkt fields - kernel/git/stable/linux.git - Linux kernel stable treePatch
-
https://git.kernel.org/stable/c/73d2892148aa4397a885b4f4afcfc5b27a325c42
IB/qib: Protect from buffer overflow in struct qib_user_sdma_pkt fields - kernel/git/stable/linux.git - Linux kernel stable treePatch
-
https://git.kernel.org/stable/c/0d4395477741608d123dad51def9fe50b7ebe952
IB/qib: Protect from buffer overflow in struct qib_user_sdma_pkt fields - kernel/git/stable/linux.git - Linux kernel stable treePatch
-
https://git.kernel.org/stable/c/bda41654b6e0c125a624ca35d6d20beb8015b5d0
IB/qib: Protect from buffer overflow in struct qib_user_sdma_pkt fields - kernel/git/stable/linux.git - Linux kernel stable treePatch
-
https://git.kernel.org/stable/c/c3e17e58f571f34c51aeb17274ed02c2ed5cf780
IB/qib: Protect from buffer overflow in struct qib_user_sdma_pkt fields - kernel/git/stable/linux.git - Linux kernel stable treePatch
-
https://git.kernel.org/stable/c/60833707b968d5ae02a75edb7886dcd4a957cf0d
IB/qib: Protect from buffer overflow in struct qib_user_sdma_pkt fields - kernel/git/stable/linux.git - Linux kernel stable treePatch
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