Vulnerability Monitor

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CVE-2021-38203

btrfs in the Linux kernel before 5.13.4 allows attackers to cause a denial of service (deadlock) via processes that trigger allocation of new system chunks during times when there is a shortage of free space in the system space_info.

Published

2021-08-08T20:15:07.217

Last Modified

2024-11-21T06:16:39.090

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 5.5 (MEDIUM)

CVSSv2 Vector

AV:L/AC:L/Au:N/C:N/I:N/A:P

Access Vector: LOCAL
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: NONE
Integrity Impact: NONE
Availability Impact: PARTIAL

Exploitability Score

3.9

Impact Score

2.9

Weaknesses

Type: Primary
CWE-667

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Operating System	linux	linux_kernel	< 5.13.4	Yes
Operating System	netapp	hci_bootstrap_os	-	Yes
Hardware	netapp	hci_compute_node	-	No
Application	netapp	hci_management_node	-	Yes
Application	netapp	solidfire	-	Yes
Application	netapp	element_software	-	Yes
Hardware	netapp	hci_storage_node	-	No

References

https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13.4 Mailing List, Patch, Vendor Advisory ([email protected])
https://github.com/torvalds/linux/commit/1cb3db1cf383a3c7dbda1aa0ce748b0958759947 Exploit, Patch, Third Party Advisory ([email protected])
https://security.netapp.com/advisory/ntap-20210902-0010/ Third Party Advisory ([email protected])
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13.4 Mailing List, Patch, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/torvalds/linux/commit/1cb3db1cf383a3c7dbda1aa0ce748b0958759947 Exploit, Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://security.netapp.com/advisory/ntap-20210902-0010/ Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)