Vulnerability Details : CVE-2020-14381
A flaw was found in the Linux kernel’s futex implementation. This flaw allows a local attacker to corrupt system memory or escalate their privileges when creating a futex on a filesystem that is about to be unmounted. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.
Products affected by CVE-2020-14381
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:5.6:-:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:5.6:rc1:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:5.6:rc2:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:5.6:rc3:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:5.6:rc4:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:5.6:rc5:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2020-14381
0.04%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 6 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-14381
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.6
|
MEDIUM | AV:L/AC:L/Au:N/C:P/I:P/A:P |
3.9
|
6.4
|
NIST | |
|
7.8
|
HIGH | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
1.8
|
5.9
|
NIST |
CWE ids for CVE-2020-14381
-
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.Assigned by:
- nvd@nist.gov (Primary)
- secalert@redhat.com (Secondary)
References for CVE-2020-14381
-
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=8019ad13ef7f64be44d4f892af9c840179009254
kernel/git/torvalds/linux.git - Linux kernel source treeMailing List;Patch;Vendor Advisory
-
https://bugzilla.redhat.com/show_bug.cgi?id=1874311
1874311 – (CVE-2020-14381) CVE-2020-14381 kernel: referencing inode of removed superblock in get_futex_key() causes UAFIssue Tracking;Patch;Third Party Advisory
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