Executive Summary



This Alert is flagged as TOP 25 Common Weakness Enumeration from CWE/SANS. For more information, you can read this.
Informations
Name CVE-2020-12826 First vendor Publication 2020-05-12
Vendor Cve Last vendor Modification 2020-06-22

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Overall CVSS Score 5.3
Base Score 5.3 Environmental Score 5.3
impact SubScore 3.4 Temporal Score 5.3
Exploitabality Sub Score 1.8
 
Attack Vector Local Attack Complexity Low
Privileges Required Low User Interaction None
Scope Unchanged Confidentiality Impact Low
Integrity Impact Low Availability Impact Low
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:L/AC:M/Au:N/C:P/I:P/A:P)
Cvss Base Score 4.4 Attack Range Local
Cvss Impact Score 6.4 Attack Complexity Medium
Cvss Expoit Score 3.4 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

A signal access-control issue was discovered in the Linux kernel before 5.6.5, aka CID-7395ea4e65c2. Because exec_id in include/linux/sched.h is only 32 bits, an integer overflow can interfere with a do_notify_parent protection mechanism. A child process can send an arbitrary signal to a parent process in a different security domain. Exploitation limitations include the amount of elapsed time before an integer overflow occurs, and the lack of scenarios where signals to a parent process present a substantial operational threat.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-12826

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-190 Integer Overflow or Wraparound (CWE/SANS Top 25)

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 1
Os 1
Os 3328
Os 4

Sources (Detail)

Source Url
CONFIRM https://bugzilla.redhat.com/show_bug.cgi?id=1822077
https://security.netapp.com/advisory/ntap-20200608-0001/
MISC https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.6.5
https://github.com/torvalds/linux/commit/7395ea4e65c2a00d23185a3f63ad315756ba...
https://lists.openwall.net/linux-kernel/2020/03/24/1803
https://www.openwall.com/lists/kernel-hardening/2020/03/25/1
MLIST https://lists.debian.org/debian-lts-announce/2020/06/msg00011.html
https://lists.debian.org/debian-lts-announce/2020/06/msg00013.html
UBUNTU https://usn.ubuntu.com/4367-1/
https://usn.ubuntu.com/4369-1/
https://usn.ubuntu.com/4391-1/

Alert History

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Date Informations
2020-08-11 12:27:41
  • Multiple Updates
2020-08-08 01:27:25
  • Multiple Updates
2020-08-07 12:27:57
  • Multiple Updates
2020-08-07 01:28:43
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2020-08-01 12:27:31
  • Multiple Updates
2020-07-30 01:28:26
  • Multiple Updates
2020-06-23 05:22:42
  • Multiple Updates
2020-06-11 01:27:59
  • Multiple Updates
2020-06-11 01:26:46
  • Multiple Updates
2020-06-10 17:22:54
  • Multiple Updates
2020-06-10 09:23:01
  • Multiple Updates
2020-06-08 17:22:52
  • Multiple Updates
2020-05-30 09:22:43
  • Multiple Updates
2020-05-28 21:23:10
  • Multiple Updates
2020-05-25 05:22:52
  • Multiple Updates
2020-05-23 02:41:37
  • Multiple Updates
2020-05-23 02:35:51
  • First insertion