CVE-2023-39191
HIGH
MEDIUM
Priority: 0.04
BB Relevance:
36/100
Published: 2023-10-04
Modified: 2026-11-07
First seen: 2026-11-07
Status: active
Attack Surface
Low Complexity
No Interaction
Conf. Impact
Integ. Impact
Scope Change
CVSS Vector Breakdown
AV:
Local
AC:
Low
PR:
High
UI:
None
S:
Changed
C:
High
I:
High
A:
High
Description
An improper input validation flaw was found in the eBPF subsystem in the Linux kernel. The issue occurs due to a lack of proper validation of dynamic pointers within user-supplied eBPF programs prior to executing them. This may allow an attacker with CAP_BPF privileges to escalate privileges and execute arbitrary code in the context of the kernel.
Weakness Classification (1)
Affected Software (3)
| Vendor | Product | Version |
|---|---|---|
| fedoraproject | fedora | 38 |
| linux | linux_kernel | 5.19 – 6.3 |
| redhat | enterprise_linux | 9.0 |
References & Advisories (7)
vendor-advisory
x_refsource_REDHAT
vendor-advisory
x_refsource_REDHAT
vendor-advisory
x_refsource_REDHAT
vendor-advisory
x_refsource_REDHAT
vdb-entry
x_refsource_REDHAT
issue-tracking
x_refsource_REDHAT