Executive Summary

Informations
Name CVE-2021-31829 First vendor Publication 2021-05-06
Vendor Cve Last vendor Modification 2021-06-23

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:N
Overall CVSS Score 5.5
Base Score 5.5 Environmental Score 5.5
impact SubScore 3.6 Temporal Score 5.5
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 None
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:N)
Cvss Base Score 2.1 Attack Range Local
Cvss Impact Score 2.9 Attack Complexity Low
Cvss Expoit Score 3.9 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

kernel/bpf/verifier.c in the Linux kernel through 5.12.1 performs undesirable speculative loads, leading to disclosure of stack content via side-channel attacks, aka CID-801c6058d14a. The specific concern is not protecting the BPF stack area against speculative loads. Also, the BPF stack can contain uninitialized data that might represent sensitive information previously operated on by the kernel.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-31829

CPE : Common Platform Enumeration

TypeDescriptionCount
Os 3
Os 3394

Sources (Detail)

Source Url
FEDORA https://lists.fedoraproject.org/archives/list/package-announce@lists.fedorapr...
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedorapr...
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedorapr...
MISC http://www.openwall.com/lists/oss-security/2021/05/04/4
https://github.com/torvalds/linux/commit/801c6058d14a82179a7ee17a4b532cac6fad...
MLIST https://lists.debian.org/debian-lts-announce/2021/06/msg00019.html

Alert History

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Date Informations
2021-06-23 09:23:08
  • Multiple Updates
2021-06-05 01:44:31
  • Multiple Updates
2021-06-04 01:39:13
  • Multiple Updates
2021-06-03 01:40:09
  • Multiple Updates
2021-05-29 01:39:47
  • Multiple Updates
2021-05-25 12:41:15
  • Multiple Updates
2021-05-19 09:23:07
  • Multiple Updates
2021-05-14 01:39:43
  • Multiple Updates
2021-05-14 01:39:32
  • Multiple Updates
2021-05-14 00:22:50
  • Multiple Updates
2021-05-13 09:22:50
  • Multiple Updates
2021-05-06 21:23:21
  • First insertion