CVE-2021-32606

CVSS V2 High 7.2 CVSS V3 High 7.8
Description
In the Linux kernel 5.11 through 5.12.2, isotp_setsockopt in net/can/isotp.c allows privilege escalation to root by leveraging a use-after-free. (This does not affect earlier versions that lack CAN ISOTP SF_BROADCAST support.)
Overview
  • CVE ID
  • CVE-2021-32606
  • Assigner
  • cve@mitre.org
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2021-05-11T23:15:09
  • Last Modified Date
  • 2021-09-07T22:03:06
Weakness Enumerations
CWE URL
CWE-416 http://cwe.mitre.org/data/definitions/416.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 1 OR 5.11 5.12.9
cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* 1 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:L/AC:L/Au:N/C:C/I:C/A:C
  • Access Vector
  • LOCAL
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • COMPLETE
  • Integrity Impact
  • COMPLETE
  • Availability Impact
  • COMPLETE
  • Base Score
  • 7.2
  • Severity
  • HIGH
  • Exploitability Score
  • 3.9
  • Impact Score
  • 10
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  • Attack Vector
  • LOCAL
  • Attack Compatibility
  • LOW
  • Privileges Required
  • LOW
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • HIGH
  • Availability Impact
  • HIGH
  • Base Score
  • 7.8
  • Base Severity
  • HIGH
  • Exploitability Score
  • 1.8
  • Impact Score
  • 5.9
References
Reference URL Reference Tags
https://www.openwall.com/lists/oss-security/2021/05/11/16 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/05/12/1 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/05/13/2 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/05/14/1 Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HD3NJBG25AADVGPRC63RX2JOQBMPSWK4/ Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GI7Z7UBWBGD3ABNIL2DC7RQDCGA4UVQW/ Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/73D53S4IZFPFQMRABMXXLW4AJK3EULDX/ Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/05/28/1 Mailing List Patch Third Party Advisory
https://security.netapp.com/advisory/ntap-20210625-0001/ Third Party Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2021-32606
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-32606
History
Created Old Value New Value Data Type Notes
2022-05-10 16:07:45 Added to TrackCVE
2022-12-05 02:07:48 2021-05-11T23:15Z 2021-05-11T23:15:09 CVE Published Date updated
2022-12-05 02:07:48 2021-09-07T22:03:06 CVE Modified Date updated
2022-12-05 02:07:48 Analyzed Vulnerability Status updated