Executive Summary

Informations
Name CVE-2021-33624 First vendor Publication 2021-06-23
Vendor Cve Last vendor Modification 2021-07-06

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
Overall CVSS Score 4.7
Base Score 4.7 Environmental Score 4.7
impact SubScore 3.6 Temporal Score 4.7
Exploitabality Sub Score 1
 
Attack Vector Local Attack Complexity High
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:M/Au:N/C:C/I:N/A:N)
Cvss Base Score 4.7 Attack Range Local
Cvss Impact Score 6.9 Attack Complexity Medium
Cvss Expoit Score 3.4 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

In kernel/bpf/verifier.c in the Linux kernel before 5.12.13, a branch can be mispredicted (e.g., because of type confusion) and consequently an unprivileged BPF program can read arbitrary memory locations via a side-channel attack, aka CID-9183671af6db.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-33624

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-203 Information Exposure Through Discrepancy

CPE : Common Platform Enumeration

TypeDescriptionCount
Os 3399

Sources (Detail)

Source Url
CONFIRM http://www.openwall.com/lists/oss-security/2021/06/21/1
https://github.com/torvalds/linux/commit/9183671af6dbf60a1219371d4ed73e23f43b...
MISC https://www.usenix.org/conference/usenixsecurity21/presentation/kirzner

Alert History

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Date Informations
2021-08-26 12:43:25
  • Multiple Updates
2021-08-24 01:43:55
  • Multiple Updates
2021-08-19 12:44:16
  • Multiple Updates
2021-07-06 17:22:58
  • Multiple Updates
2021-06-24 00:22:46
  • Multiple Updates
2021-06-23 21:23:12
  • First insertion