7.8
CVE-2023-4147
- EPSS 0.15%
- Published 07.08.2023 14:15:11
- Last modified 21.11.2024 08:34:28
- Source secalert@redhat.com
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A use-after-free flaw was found in the Linux kernel’s Netfilter functionality when adding a rule with NFTA_RULE_CHAIN_ID. This flaw allows a local user to crash or escalate their privileges on the system.
Data is provided by the National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 5.9 < 5.10.190
Linux ≫ Linux Kernel Version >= 5.11 < 5.15.124
Linux ≫ Linux Kernel Version >= 5.16 < 6.1.43
Linux ≫ Linux Kernel Version >= 6.2 < 6.4.8
Linux ≫ Linux Kernel Version6.5 Updaterc1
Linux ≫ Linux Kernel Version6.5 Updaterc2
Linux ≫ Linux Kernel Version6.5 Updaterc3
Fedoraproject ≫ Fedora Version38
Redhat ≫ Enterprise Linux Version9.0
Redhat ≫ Enterprise Linux Eus Version9.2
Redhat ≫ Enterprise Linux For Real Time Version9.0
Redhat ≫ Enterprise Linux For Real Time For Nfv Version9.0
Redhat ≫ Enterprise Linux Server Aus Version9.2
Debian ≫ Debian Linux Version10.0
Debian ≫ Debian Linux Version11.0
Debian ≫ Debian Linux Version12.0
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
| Type | Source | Score | Percentile |
|---|---|---|---|
| EPSS | FIRST.org | 0.15% | 0.36 |
| Source | Base Score | Exploit Score | Impact Score | Vector string |
|---|---|---|---|---|
| nvd@nist.gov | 7.8 | 1.8 | 5.9 |
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
|
| secalert@redhat.com | 7.8 | 1.8 | 5.9 |
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
|
CWE-416 Use After Free
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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.