4.9

CVE-2020-27835

A use after free in the Linux kernel infiniband hfi1 driver in versions prior to 5.10-rc6 was found in the way user calls Ioctl after open dev file and fork. A local user could use this flaw to crash the system.

Data is provided by the National Vulnerability Database (NVD)
Linux ≫ Infiniband Hfi1 Driver Version <= 5.9
Linux ≫ Infiniband Hfi1 Driver Version5.10 Updaterc1
Linux ≫ Infiniband Hfi1 Driver Version5.10 Updaterc2
Linux ≫ Infiniband Hfi1 Driver Version5.10 Updaterc3
Linux ≫ Infiniband Hfi1 Driver Version5.10 Updaterc4
Linux ≫ Infiniband Hfi1 Driver Version5.10 Updaterc5
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
EPSS Metriken
Type Source Score Percentile
EPSS FIRST.org 0.08% 0.249
CVSS Metriken
Source Base Score Exploit Score Impact Score Vector string
nvd@nist.gov 4.4 0.8 3.6
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
nvd@nist.gov 4.9 3.9 6.9
AV:L/AC:L/Au:N/C:N/I:N/A:C
CWE-416 Use After Free

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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

https://bugzilla.redhat.com/show_bug.cgi?id=1901709
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Third Party Advisory
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