Vulnerability Details : CVE-2023-6270
A flaw was found in the ATA over Ethernet (AoE) driver in the Linux kernel. The aoecmd_cfg_pkts() function improperly updates the refcnt on `struct net_device`, and a use-after-free can be triggered by racing between the free on the struct and the access through the `skbtxq` global queue. This could lead to a denial of service condition or potential code execution.
Vulnerability category: Memory CorruptionDenial of service
Products affected by CVE-2023-6270
- cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2023-6270
0.08%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 20 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2023-6270
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
7.0
|
HIGH | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |
1.0
|
5.9
|
NIST | 2024-01-10 |
|
7.0
|
HIGH | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |
1.0
|
5.9
|
Red Hat, Inc. | 2024-01-04 |
|
7.0
|
HIGH | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |
N/A
|
N/A
|
RedHat-CVE-2023-6270 | 2024-01-04 |
CWE ids for CVE-2023-6270
-
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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.Assigned by: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-2023-6270
-
https://bugzilla.redhat.com/show_bug.cgi?id=2256786
2256786 – (CVE-2023-6270, ZDI-CAN-22236) CVE-2023-6270 kernel: AoE: improper reference count leads to use-after-free vulnerabilityIssue Tracking;Third Party Advisory
-
https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html
[SECURITY] [DLA 3840-1] linux security update
-
https://access.redhat.com/security/cve/CVE-2023-6270
CVE-2023-6270- Red Hat Customer PortalThird Party Advisory
-
https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html
[SECURITY] [DLA 3842-1] linux-5.10 security update
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