Executive Summary

Informations
Name CVE-2020-12657 First vendor Publication 2020-05-05
Vendor Cve Last vendor Modification 2020-06-13

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Overall CVSS Score 7.8
Base Score 7.8 Environmental Score 7.8
impact SubScore 5.9 Temporal Score 7.8
Exploitabality Sub Score 1.8
 
Attack Vector Local Attack Complexity Low
Privileges Required Low User Interaction None
Scope Unchanged Confidentiality Impact High
Integrity Impact High Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:L/AC:L/Au:N/C:P/I:P/A:P)
Cvss Base Score 4.6 Attack Range Local
Cvss Impact Score 6.4 Attack Complexity Low
Cvss Expoit Score 3.9 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

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.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-12657

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-416 Use After Free

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 1
Os 3376

Sources (Detail)

Source Url
CONFIRM https://security.netapp.com/advisory/ntap-20200608-0001/
MISC https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.6.5
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=2f...
https://github.com/torvalds/linux/commit/2f95fa5c955d0a9987ffdc3a095e2f4e62c5...
https://patchwork.kernel.org/patch/11447049/
SUSE http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00022.html
UBUNTU https://usn.ubuntu.com/4363-1/
https://usn.ubuntu.com/4367-1/
https://usn.ubuntu.com/4368-1/
https://usn.ubuntu.com/4369-1/

Alert History

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Date Informations
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2020-12-12 12:28:53
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2020-05-23 02:41:36
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2020-05-23 02:35:44
  • First insertion