CVE-2021-26708

CVSS V2 Medium 6.9 CVSS V3 High 7
Description
A local privilege escalation was discovered in the Linux kernel before 5.10.13. Multiple race conditions in the AF_VSOCK implementation are caused by wrong locking in net/vmw_vsock/af_vsock.c. The race conditions were implicitly introduced in the commits that added VSOCK multi-transport support.
Overview
  • CVE ID
  • CVE-2021-26708
  • Assigner
  • cve@mitre.org
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2021-02-05T14:15:18
  • Last Modified Date
  • 2022-06-28T14:11:45
Weakness Enumerations
CWE URL
CWE-667 http://cwe.mitre.org/data/definitions/667.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
AND
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 1 OR 5.5 5.10.13
AND
cpe:2.3:a:netapp:aff_baseboard_management_controller:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:netapp:cloud_backup:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:netapp:fas_baseboard_management_controller:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:netapp:solidfire_\&_hci_management_node:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:netapp:solidfire_baseboard_management_controller:-:*:*:*:*:*:*:* 1 OR
AND
cpe:2.3:o:netapp:baseboard_management_controller_500f_firmware:*:*:*:*:*:*:*:* 1 OR 15.3
cpe:2.3:h:netapp:baseboard_management_controller_500f:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:netapp:baseboard_management_controller_a250_firmware:*:*:*:*:*:*:*:* 1 OR 15.3
cpe:2.3:h:netapp:baseboard_management_controller_a250:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:netapp:hci_h410c_firmware:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:netapp:hci_h410c:-:*:*:*:*:*:*:* 0 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:L/AC:M/Au:N/C:C/I:C/A:C
  • Access Vector
  • LOCAL
  • Access Compatibility
  • MEDIUM
  • Authentication
  • NONE
  • Confidentiality Impact
  • COMPLETE
  • Integrity Impact
  • COMPLETE
  • Availability Impact
  • COMPLETE
  • Base Score
  • 6.9
  • Severity
  • MEDIUM
  • Exploitability Score
  • 3.4
  • Impact Score
  • 10
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=c518adafa39f37858697ac9309c6cf1805581446 Patch Vendor Advisory
https://www.openwall.com/lists/oss-security/2021/02/04/5 Mailing List Patch Third Party Advisory
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.13 Release Notes Vendor Advisory
http://www.openwall.com/lists/oss-security/2021/02/05/6 Mailing List Patch Third Party Advisory
https://security.netapp.com/advisory/ntap-20210312-0008/ Patch Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/04/09/2 Mailing List
http://www.openwall.com/lists/oss-security/2022/01/25/14 Mailing List
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2021-26708
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-26708
History
Created Old Value New Value Data Type Notes
2022-05-10 06:31:27 Added to TrackCVE
2022-12-05 21:28:42 2021-02-05T14:15Z 2021-02-05T14:15:18 CVE Published Date updated
2022-12-05 21:28:42 2022-06-28T14:11:45 CVE Modified Date updated
2022-12-05 21:28:42 Analyzed Vulnerability Status updated