Executive Summary

Informations
Name CVE-2020-10711 First vendor Publication 2020-05-22
Vendor Cve Last vendor Modification 2023-11-07

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Overall CVSS Score 5.9
Base Score 5.9 Environmental Score 5.9
impact SubScore 3.6 Temporal Score 5.9
Exploitabality Sub Score 2.2
 
Attack Vector Network Attack Complexity High
Privileges Required None User Interaction None
Scope Unchanged Confidentiality Impact None
Integrity Impact None Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:M/Au:N/C:N/I:N/A:P)
Cvss Base Score 4.3 Attack Range Network
Cvss Impact Score 2.9 Attack Complexity Medium
Cvss Expoit Score 8.6 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

A NULL pointer dereference flaw was found in the Linux kernel's SELinux subsystem in versions before 5.7. This flaw occurs while importing the Commercial IP Security Option (CIPSO) protocol's category bitmap into the SELinux extensible bitmap via the' ebitmap_netlbl_import' routine. While processing the CIPSO restricted bitmap tag in the 'cipso_v4_parsetag_rbm' routine, it sets the security attribute to indicate that the category bitmap is present, even if it has not been allocated. This issue leads to a NULL pointer dereference issue while importing the same category bitmap into SELinux. This flaw allows a remote network user to crash the system kernel, resulting in a denial of service.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-10711

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-476 NULL Pointer Dereference

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 1
Application 1
Application 1
Application 1
Os 5
Os 3
Os 3377
Os 2
Os 3
Os 1
Os 1
Os 1

Sources (Detail)

Source Url
CONFIRM https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-10711
https://security.netapp.com/advisory/ntap-20200608-0001/
https://www.openwall.com/lists/oss-security/2020/05/12/2
DEBIAN https://www.debian.org/security/2020/dsa-4698
https://www.debian.org/security/2020/dsa-4699
MLIST https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html
SUSE http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00022.html
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00008.html
UBUNTU https://usn.ubuntu.com/4411-1/
https://usn.ubuntu.com/4412-1/
https://usn.ubuntu.com/4413-1/
https://usn.ubuntu.com/4414-1/
https://usn.ubuntu.com/4419-1/

Alert History

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