Vulnerability Details : CVE-2021-47307
In the Linux kernel, the following vulnerability has been resolved:
cifs: prevent NULL deref in cifs_compose_mount_options()
The optional @ref parameter might contain an NULL node_name, so
prevent dereferencing it in cifs_compose_mount_options().
Addresses-Coverity: 1476408 ("Explicit null dereferenced")
Products affected by CVE-2021-47307
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-47307
0.04%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 5 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-47307
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.5
|
MEDIUM | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
1.8
|
3.6
|
NIST | 2024-12-26 |
CWE ids for CVE-2021-47307
-
The product dereferences a pointer that it expects to be valid but is NULL.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-47307
-
https://git.kernel.org/stable/c/ae3d181f4e912f51af7776ea165f199b16fc165d
cifs: prevent NULL deref in cifs_compose_mount_options() - kernel/git/stable/linux.git - Linux kernel stable treePatch
-
https://git.kernel.org/stable/c/03313d1c3a2f086bb60920607ab79ac8f8578306
cifs: prevent NULL deref in cifs_compose_mount_options() - kernel/git/stable/linux.git - Linux kernel stable treePatch
-
https://git.kernel.org/stable/c/f7d1fa65e74263d11f90ddd33b4d4cd905a93759
cifs: prevent NULL deref in cifs_compose_mount_options() - kernel/git/stable/linux.git - Linux kernel stable treePatch
-
https://git.kernel.org/stable/c/e58c162789becede894d3e94c0ce6695a2ef5796
cifs: prevent NULL deref in cifs_compose_mount_options() - kernel/git/stable/linux.git - Linux kernel stable treePatch
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