CVE-2021-4135

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.

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=481221775d53	Mailing List Patch Vendor Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=481221775d53	Mailing List Patch Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel:5.16:-::::::
	cpe:2.3:o:linux:linux_kernel:5.16:rc1::::::
	cpe:2.3:o:linux:linux_kernel:5.16:rc2::::::
	cpe:2.3:o:linux:linux_kernel:5.16:rc3::::::
	cpe:2.3:o:linux:linux_kernel:5.16:rc4::::::
	cpe:2.3:o:linux:linux_kernel:5.16:rc5::::::

History

21 Nov 2024, 06:36

Type	Values Removed	Values Added
References	~~() https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=481221775d53 - Mailing List, Patch, Vendor Advisory~~	() https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=481221775d53 - Mailing List, Patch, Vendor Advisory

Information

Published : 2022-07-14 20:15

Updated : 2024-11-21 06:36

NVD link : CVE-2021-4135

Mitre link : CVE-2021-4135

CVE.ORG link : CVE-2021-4135

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-200

Exposure of Sensitive Information to an Unauthorized Actor

CWE-401

Missing Release of Memory after Effective Lifetime

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