Vulnerability Details : CVE-2020-25578
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.
Exploit prediction scoring system (EPSS) score for CVE-2020-25578
Probability of exploitation activity in the next 30 days: 0.09%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 38 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2020-25578
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
---|---|---|---|---|---|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:P/I:N/A:N |
10.0
|
2.9
|
NIST |
5.3
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |
3.9
|
1.4
|
NIST |
CWE ids for CVE-2020-25578
-
The product does not initialize or incorrectly initializes a resource, which might leave the resource in an unexpected state when it is accessed or used.Assigned by: nvd@nist.gov (Primary)
References for CVE-2020-25578
-
https://security.FreeBSD.org/advisories/FreeBSD-SA-21:01.fsdisclosure.asc
Vendor Advisory
-
https://security.netapp.com/advisory/ntap-20210423-0002/
April 2021 FreeBSD Vulnerabilities in NetApp Products | NetApp Product SecurityThird Party Advisory
Products affected by CVE-2020-25578
- cpe:2.3:o:freebsd:freebsd:12.1:-:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:12.1:p1:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:12.1:p2:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:12.1:p3:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:12.1:p4:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:12.2:-:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:12.2:p1:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:12.2:p2:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:11.4:-:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:11.4:p1:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:11.4:p2:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:11.4:p3:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:11.4:p4:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:11.4:p5:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:12.1:p5:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:12.1:p6:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:12.1:p7:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:12.1:p8:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:12.1:p9:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:11.4:p6:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:12.1:p10:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:12.1:p11:*:*:*:*:*:*
- cpe:2.3:o:freebsd:freebsd:12.1:p12:*:*:*:*:*:*