CVE-2021-45868

CVSS V2 Medium 4.3 CVSS V3 Medium 5.5
Description
In the Linux kernel before 5.15.3, fs/quota/quota_tree.c does not validate the block number in the quota tree (on disk). This can, for example, lead to a kernel/locking/rwsem.c use-after-free if there is a corrupted quota file.
Overview
  • CVE ID
  • CVE-2021-45868
  • Assigner
  • cve@mitre.org
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2022-03-18T07:15:06
  • Last Modified Date
  • 2023-02-04T00:00:27
Weakness Enumerations
CWE URL
CWE-416 http://cwe.mitre.org/data/definitions/416.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
AND
cpe:2.3:a:linux:linux_kernel:*:*:*:*:*:*:*:* 1 OR 5.15.3
AND
cpe:2.3:o:netapp:h300s_firmware:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:netapp:h300s:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:netapp:h700s_firmware:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:netapp:h700s:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:netapp:h300e_firmware:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:netapp:h300e:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:netapp:h500e_firmware:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:netapp:h500e:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:netapp:h700e_firmware:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:netapp:h700e:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:netapp:h410s_firmware:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:netapp:h410s:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:netapp:h410c_firmware:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:netapp:h410c:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:netapp:h500s_firmware:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:h:netapp:h500s:-:*:*:*:*:*:*:* 0 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:M/Au:N/C:N/I:N/A:P
  • Access Vector
  • NETWORK
  • Access Compatibility
  • MEDIUM
  • Authentication
  • NONE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • NONE
  • Availability Impact
  • PARTIAL
  • Base Score
  • 4.3
  • Severity
  • MEDIUM
  • Exploitability Score
  • 8.6
  • Impact Score
  • 2.9
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
  • Attack Vector
  • LOCAL
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • REQUIRED
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • NONE
  • Availability Impact
  • HIGH
  • Base Score
  • 5.5
  • Base Severity
  • MEDIUM
  • Exploitability Score
  • 1.8
  • Impact Score
  • 3.6
References
Reference URL Reference Tags
https://bugzilla.kernel.org/show_bug.cgi?id=214655 Exploit Issue Tracking Vendor Advisory
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.3 Mailing List Release Notes Vendor Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=9bf3d20331295b1ecb81f4ed9ef358c51699a050 Mailing List Patch Vendor Advisory
https://security.netapp.com/advisory/ntap-20220419-0003/ Third Party Advisory
https://www.openwall.com/lists/oss-security/2022/03/17/1 Exploit Mailing List Patch Third Party Advisory
https://www.openwall.com/lists/oss-security/2022/03/17/2 Exploit Mailing List Patch Third Party Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2021-45868
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-45868
History
Created Old Value New Value Data Type Notes
2022-04-04 00:42:35 Added to TrackCVE
2022-12-06 12:44:09 2022-03-18T07:15Z 2022-03-18T07:15:06 CVE Published Date updated
2022-12-06 12:44:09 2022-04-27T19:58:13 CVE Modified Date updated
2022-12-06 12:44:09 Analyzed Vulnerability Status updated
2022-12-06 12:44:14 References updated
2022-12-12 19:13:44 Analyzed Undergoing Analysis Vulnerability Status updated
2023-02-04 01:12:43 2023-02-04T00:00:27 CVE Modified Date updated
2023-02-04 01:12:43 Undergoing Analysis Analyzed Vulnerability Status updated