Executive Summary

Informations
Name CVE-2021-3348 First vendor Publication 2021-02-01
Vendor Cve Last vendor Modification 2021-03-31

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Overall CVSS Score 7
Base Score 7 Environmental Score 7
impact SubScore 5.9 Temporal Score 7
Exploitabality Sub Score 1
 
Attack Vector Local Attack Complexity High
Privileges Required Low User Interaction None
Scope Unchanged Confidentiality Impact High
Integrity Impact High Availability Impact High
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

nbd_add_socket in drivers/block/nbd.c in the Linux kernel through 5.10.12 has an ndb_queue_rq use-after-free that could be triggered by local attackers (with access to the nbd device) via an I/O request at a certain point during device setup, aka CID-b98e762e3d71.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3348

CWE : Common Weakness Enumeration

% Id Name
50 % CWE-416 Use After Free
50 % CWE-362 Race Condition

CPE : Common Platform Enumeration

TypeDescriptionCount
Os 3364

Sources (Detail)

Source Url
MISC https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id...
https://www.openwall.com/lists/oss-security/2021/01/28/3
MLIST http://www.openwall.com/lists/oss-security/2021/02/01/1
https://lists.debian.org/debian-lts-announce/2021/03/msg00035.html

Alert History

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Date Informations
2021-03-31 09:23:14
  • Multiple Updates
2021-03-26 12:38:47
  • Multiple Updates
2021-02-16 21:23:30
  • Multiple Updates
2021-02-06 05:23:04
  • Multiple Updates
2021-02-02 01:32:38
  • Multiple Updates
2021-02-02 01:32:21
  • Multiple Updates
2021-02-01 13:23:01
  • Multiple Updates
2021-02-01 09:23:08
  • First insertion