Vulnerability Details CVE-2021-47605
In the Linux kernel, the following vulnerability has been resolved:
vduse: fix memory corruption in vduse_dev_ioctl()
The "config.offset" comes from the user. There needs to a check to
prevent it being out of bounds. The "config.offset" and
"dev->config_size" variables are both type u32. So if the offset if
out of bounds then the "dev->config_size - config.offset" subtraction
results in a very high u32 value. The out of bounds offset can result
in memory corruption.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 19.9%
CVSS Severity
CVSS v3 Score 7.8
References
Products affected by CVE-2021-47605
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cpe:2.3:o:linux:linux_kernel:5.15
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cpe:2.3:o:linux:linux_kernel:5.15.0
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cpe:2.3:o:linux:linux_kernel:5.15.0-58
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cpe:2.3:o:linux:linux_kernel:5.15.1
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cpe:2.3:o:linux:linux_kernel:5.15.10
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cpe:2.3:o:linux:linux_kernel:5.15.2
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cpe:2.3:o:linux:linux_kernel:5.15.3
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cpe:2.3:o:linux:linux_kernel:5.15.4
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cpe:2.3:o:linux:linux_kernel:5.15.5
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cpe:2.3:o:linux:linux_kernel:5.15.6
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cpe:2.3:o:linux:linux_kernel:5.15.7
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cpe:2.3:o:linux:linux_kernel:5.15.8
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cpe:2.3:o:linux:linux_kernel:5.15.9
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cpe:2.3:o:linux:linux_kernel:5.16