CVE-2021-3348

CVSS V2 Medium 4.4 CVSS V3 High 7
Description
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.
Overview
  • CVE ID
  • CVE-2021-3348
  • Assigner
  • cve@mitre.org
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2021-02-01T04:15:14
  • Last Modified Date
  • 2022-04-26T16:17:02
Weakness Enumerations
CWE URL
CWE-362 http://cwe.mitre.org/data/definitions/362.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 1 OR 5.10.12
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* 1 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:L/AC:M/Au:N/C:P/I:P/A:P
  • Access Vector
  • LOCAL
  • Access Compatibility
  • MEDIUM
  • Authentication
  • NONE
  • Confidentiality Impact
  • PARTIAL
  • Integrity Impact
  • PARTIAL
  • Availability Impact
  • PARTIAL
  • Base Score
  • 4.4
  • Severity
  • MEDIUM
  • Exploitability Score
  • 3.4
  • Impact Score
  • 6.4
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  • Attack Vector
  • LOCAL
  • Attack Compatibility
  • HIGH
  • Privileges Required
  • LOW
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • HIGH
  • Availability Impact
  • HIGH
  • Base Score
  • 7
  • Base Severity
  • HIGH
  • Exploitability Score
  • 1
  • Impact Score
  • 5.9
References
Reference URL Reference Tags
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b98e762e3d71e893b221f871825dc64694cfb258 Mailing List Patch Vendor Advisory
https://www.openwall.com/lists/oss-security/2021/01/28/3 Mailing List Patch Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/02/01/1 Mailing List Patch Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/03/msg00035.html Third Party Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2021-3348
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3348
History
Created Old Value New Value Data Type Notes
2022-05-10 06:26:29 Added to TrackCVE
2022-12-05 21:09:12 2021-02-01T04:15Z 2021-02-01T04:15:14 CVE Published Date updated
2022-12-05 21:09:12 2022-04-26T16:17:02 CVE Modified Date updated
2022-12-05 21:09:12 Analyzed Vulnerability Status updated