CVE-2021-4135

Description

A memory leak vulnerability was found in the Linux kernel's eBPF for the Simulated networking device driver in the way user uses BPF for the device such that function nsim_map_alloc_elem being called. A local user could use this flaw to get unauthorized access to some data.

Categories

5.5
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.02%
Vendor Advisory kernel.org
Affected: n/a kernel
Published at:
Updated at:

References

Link Tags
https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=481221775d53 mailing list patch vendor advisory

Frequently Asked Questions

What is the severity of CVE-2021-4135?
CVE-2021-4135 has been scored as a medium severity vulnerability.
How to fix CVE-2021-4135?
To fix CVE-2021-4135, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-4135 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-4135 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-4135?
CVE-2021-4135 affects n/a kernel.
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