CVE-2020-12657

An issue was discovered in the Linux kernel before 5.6.5. There is a use-after-free in block/bfq-iosched.c related to bfq_idle_slice_timer_body.

CVSS v3.0 7.8 HIGH
CVSS v2.0 4.6 MEDIUM

7.8^/10

CVSS v3.0 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

4.6^/10

CVSS v2.0 : MEDIUM

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

Exploitability : 3.9 / Impact : 6.4

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.6.5	Release Notes Vendor Advisory
https://patchwork.kernel.org/patch/11447049/	Patch Vendor Advisory
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=2f95fa5c955d0a9987ffdc3a095e2f4e62c5f2a9	Patch Vendor Advisory
https://github.com/torvalds/linux/commit/2f95fa5c955d0a9987ffdc3a095e2f4e62c5f2a9	Patch Third Party Advisory
https://usn.ubuntu.com/4367-1/
https://usn.ubuntu.com/4368-1/
https://usn.ubuntu.com/4363-1/
https://usn.ubuntu.com/4369-1/
https://security.netapp.com/advisory/ntap-20200608-0001/
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 : 2020-05-05 00:15

Updated : 2020-06-13 02:15

NVD link : CVE-2020-12657

Mitre link : CVE-2020-12657

JSON object : View

CWE

CWE-416

Use After Free

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Products Affected

linux

linux_kernel

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