Vulnerability Details : CVE-2023-4394
A use-after-free flaw was found in btrfs_get_dev_args_from_path in fs/btrfs/volumes.c in btrfs file-system in the Linux Kernel. This flaw allows a local attacker with special privileges to cause a system crash or leak internal kernel information
Vulnerability category: Memory Corruption
Products affected by CVE-2023-4394
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.0:rc1:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.0:rc2:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2023-4394
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-2023-4394
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
6.0
|
MEDIUM | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:H |
0.8
|
5.2
|
NIST | |
|
6.7
|
MEDIUM | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H |
0.8
|
5.9
|
Red Hat, Inc. |
CWE ids for CVE-2023-4394
-
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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2023-4394
-
https://access.redhat.com/security/cve/CVE-2023-4394
CVE-2023-4394- Red Hat Customer PortalIssue Tracking;Third Party Advisory
-
https://patchwork.kernel.org/project/linux-btrfs/patch/20220815151606.3479183-1-r33s3n6@gmail.com/
fs: btrfs: fix possible memory leaks in btrfs_get_dev_args_from_path() - PatchworkMailing List;Patch;Vendor Advisory
-
https://bugzilla.redhat.com/show_bug.cgi?id=2219263
2219263 – (CVE-2023-4394) CVE-2023-4394 kernel: btrfs: memory leak in btrfs_get_dev_args_from_path()Issue Tracking;Patch;Third Party Advisory
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