CVE-2020-25578

CVSS V2 Medium 5 CVSS V3 Medium 5.3
Description
In FreeBSD 12.2-STABLE before r368969, 11.4-STABLE before r369047, 12.2-RELEASE before p3, 12.1-RELEASE before p13 and 11.4-RELEASE before p7 several file systems were not properly initializing the d_off field of the dirent structures returned by VOP_READDIR. In particular, tmpfs(5), smbfs(5), autofs(5) and mqueuefs(5) were failing to do so. As a result, eight uninitialized kernel stack bytes may be leaked to userspace by these file systems.
Overview
  • CVE ID
  • CVE-2020-25578
  • Assigner
  • secteam@freebsd.org
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2021-03-26T21:15:12
  • Last Modified Date
  • 2022-06-28T14:11:45
Weakness Enumerations
CWE URL
CWE-665 http://cwe.mitre.org/data/definitions/665.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:o:freebsd:freebsd:11.4:-:*:*:*:*:*:* 1 OR
cpe:2.3:o:freebsd:freebsd:11.4:p1:*:*:*:*:*:* 1 OR
cpe:2.3:o:freebsd:freebsd:11.4:p2:*:*:*:*:*:* 1 OR
cpe:2.3:o:freebsd:freebsd:11.4:p3:*:*:*:*:*:* 1 OR
cpe:2.3:o:freebsd:freebsd:11.4:p4:*:*:*:*:*:* 1 OR
cpe:2.3:o:freebsd:freebsd:11.4:p5:*:*:*:*:*:* 1 OR
cpe:2.3:o:freebsd:freebsd:11.4:p6:*:*:*:*:*:* 1 OR
cpe:2.3:o:freebsd:freebsd:12.1:-:*:*:*:*:*:* 1 OR
cpe:2.3:o:freebsd:freebsd:12.1:p1:*:*:*:*:*:* 1 OR
cpe:2.3:o:freebsd:freebsd:12.1:p10:*:*:*:*:*:* 1 OR
cpe:2.3:o:freebsd:freebsd:12.1:p11:*:*:*:*:*:* 1 OR
cpe:2.3:o:freebsd:freebsd:12.1:p12:*:*:*:*:*:* 1 OR
cpe:2.3:o:freebsd:freebsd:12.1:p2:*:*:*:*:*:* 1 OR
cpe:2.3:o:freebsd:freebsd:12.1:p3:*:*:*:*:*:* 1 OR
cpe:2.3:o:freebsd:freebsd:12.1:p4:*:*:*:*:*:* 1 OR
cpe:2.3:o:freebsd:freebsd:12.1:p5:*:*:*:*:*:* 1 OR
cpe:2.3:o:freebsd:freebsd:12.1:p6:*:*:*:*:*:* 1 OR
cpe:2.3:o:freebsd:freebsd:12.1:p7:*:*:*:*:*:* 1 OR
cpe:2.3:o:freebsd:freebsd:12.1:p8:*:*:*:*:*:* 1 OR
cpe:2.3:o:freebsd:freebsd:12.1:p9:*:*:*:*:*:* 1 OR
cpe:2.3:o:freebsd:freebsd:12.2:-:*:*:*:*:*:* 1 OR
cpe:2.3:o:freebsd:freebsd:12.2:p1:*:*:*:*:*:* 1 OR
cpe:2.3:o:freebsd:freebsd:12.2:p2:*:*:*:*:*:* 1 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:L/Au:N/C:P/I:N/A:N
  • Access Vector
  • NETWORK
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • PARTIAL
  • Integrity Impact
  • NONE
  • Availability Impact
  • NONE
  • Base Score
  • 5
  • Severity
  • MEDIUM
  • Exploitability Score
  • 10
  • Impact Score
  • 2.9
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • LOW
  • Availability Impact
  • NONE
  • Base Score
  • 5.3
  • Base Severity
  • MEDIUM
  • Exploitability Score
  • 3.9
  • Impact Score
  • 1.4
References
Reference URL Reference Tags
https://security.FreeBSD.org/advisories/FreeBSD-SA-21:01.fsdisclosure.asc Vendor Advisory
https://security.netapp.com/advisory/ntap-20210423-0002/ Third Party Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2020-25578
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-25578
History
Created Old Value New Value Data Type Notes
2022-05-10 16:13:38 Added to TrackCVE
2022-12-06 00:32:36 2021-03-26T21:15Z 2021-03-26T21:15:12 CVE Published Date updated
2022-12-06 00:32:36 2022-06-28T14:11:45 CVE Modified Date updated
2022-12-06 00:32:37 Analyzed Vulnerability Status updated