Executive Summary

Informations
Name CVE-2020-8428 First vendor Publication 2020-01-29
Vendor Cve Last vendor Modification 2020-06-10

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Overall CVSS Score 7.1
Base Score 7.1 Environmental Score 7.1
impact SubScore 5.2 Temporal Score 7.1
Exploitabality Sub Score 1.8
 
Attack Vector Local Attack Complexity Low
Privileges Required Low User Interaction None
Scope Unchanged Confidentiality Impact High
Integrity Impact None 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:N/A:P)
Cvss Base Score 3.6 Attack Range Local
Cvss Impact Score 4.9 Attack Complexity Low
Cvss Expoit Score 3.9 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

fs/namei.c in the Linux kernel before 5.5 has a may_create_in_sticky use-after-free, which allows local users to cause a denial of service (OOPS) or possibly obtain sensitive information from kernel memory, aka CID-d0cb50185ae9. One attack vector may be an open system call for a UNIX domain socket, if the socket is being moved to a new parent directory and its old parent directory is being removed.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-8428

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-416 Use After Free

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 1
Os 3364

Sources (Detail)

Source Url
CONFIRM https://security.netapp.com/advisory/ntap-20200313-0003/
DEBIAN https://www.debian.org/security/2020/dsa-4667
https://www.debian.org/security/2020/dsa-4698
MISC http://packetstormsecurity.com/files/157233/Kernel-Live-Patch-Security-Notice...
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d0...
https://github.com/torvalds/linux/commit/d0cb50185ae942b03c4327be322055d622dc...
https://www.openwall.com/lists/oss-security/2020/01/28/2
MLIST http://www.openwall.com/lists/oss-security/2020/01/28/4
http://www.openwall.com/lists/oss-security/2020/02/02/1
https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html
SUSE http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.html
UBUNTU https://usn.ubuntu.com/4318-1/
https://usn.ubuntu.com/4319-1/
https://usn.ubuntu.com/4320-1/
https://usn.ubuntu.com/4324-1/
https://usn.ubuntu.com/4325-1/

Alert History

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Date Informations
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2020-12-12 12:31:22
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2020-06-10 17:23:00
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2020-05-24 01:32:09
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2020-05-23 02:40:50
  • First insertion