CVE-2020-12652

The __mptctl_ioctl function in drivers/message/fusion/mptctl.c in the Linux kernel before 5.4.14 allows local users to hold an incorrect lock during the ioctl operation and trigger a race condition, i.e., a "double fetch" vulnerability, aka CID-28d76df18f0a. NOTE: the vendor states "The security impact of this bug is not as bad as it could have been because these operations are all privileged and root already has enormous destructive power."

CVSS v3.0 4.1 MEDIUM
CVSS v2.0 4.7 MEDIUM

4.1^/10

CVSS v3.0 : MEDIUM

Vector :

Exploitability : 0.5 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity HIGH

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

4.7^/10

CVSS v2.0 : MEDIUM

Vector : AV:L/AC:M/Au:N/C:N/I:N/A:C

Exploitability : 3.4 / Impact : 6.9

Access Vector LOCAL

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact COMPLETE

References

Link	Resource
https://github.com/torvalds/linux/commit/28d76df18f0ad5bcf5fa48510b225f0ed262a99b	Patch Third Party Advisory
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=28d76df18f0ad5bcf5fa48510b225f0ed262a99b	Patch Vendor Advisory
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.14	Release Notes Vendor Advisory
https://security.netapp.com/advisory/ntap-20200608-0001/
https://lists.debian.org/debian-lts-announce/2020/06/msg00011.html
https://lists.debian.org/debian-lts-announce/2020/06/msg00013.html
https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html
https://www.debian.org/security/2020/dsa-4698
http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00022.html

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Configurations

Configuration 1 (hide)

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

Information

Published : 2020-05-04 22:15

Updated : 2020-06-13 02:15

NVD link : CVE-2020-12652

Mitre link : CVE-2020-12652

JSON object : View

CWE

CWE-362

Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

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Products Affected

linux

linux_kernel

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