CVE-2023-39191
Last modified
CVE-2023-39191 is a high-severity vulnerability rated 8.2/10 on the CVSS scale. 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. EPSS estimates a 0.52% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 5.19, < 6.3 |
| Fedoraproject | Fedora | 38 |
| Redhat | Enterprise Linux | 9.0 |
References
- https://access.redhat.com/errata/RHSA-2023:6583Third Party Advisory
- https://access.redhat.com/errata/RHSA-2024:0381Third Party Advisory
- https://access.redhat.com/errata/RHSA-2024:0439Third Party Advisory
- https://access.redhat.com/errata/RHSA-2024:0448Third Party Advisory
- https://access.redhat.com/security/cve/CVE-2023-39191Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2226783Issue Tracking, Patch, Third Party Advisory
- https://www.zerodayinitiative.com/advisories/ZDI-CAN-19399/Patch, Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2023:6583Third Party Advisory
- https://access.redhat.com/errata/RHSA-2024:0381Third Party Advisory
- https://access.redhat.com/errata/RHSA-2024:0439Third Party Advisory
- https://access.redhat.com/errata/RHSA-2024:0448Third Party Advisory
- https://access.redhat.com/security/cve/CVE-2023-39191Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2226783Issue Tracking, Patch, Third Party Advisory
- https://www.zerodayinitiative.com/advisories/ZDI-CAN-19399/Patch, Third Party Advisory, VDB Entry
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2023-39191?
How severe is CVE-2023-39191?
How do I fix CVE-2023-39191?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2023
- CVE-2023-39186A vulnerability has been identified in Solid Edge SE2023 (Al…7.8
- CVE-2023-39187A vulnerability has been identified in Solid Edge SE2023 (Al…7.8
- CVE-2023-39188A vulnerability has been identified in Solid Edge SE2023 (Al…7.8
- CVE-2023-39189A flaw was found in the Netfilter subsystem in the Linux ker…6
- CVE-2023-3919Rejected reason: This CVE ID has been rejected or withdrawn …
- CVE-2023-39190Rejected reason: CVE-2023-39190 was found to be a duplicate …
- CVE-2023-39192A flaw was found in the Netfilter subsystem in the Linux ker…6
- CVE-2023-39193A flaw was found in the Netfilter subsystem in the Linux ker…6
- CVE-2023-39194A flaw was found in the XFRM subsystem in the Linux kernel. …4.4
- CVE-2023-39195Rejected reason: CVE-2023-39195 was found to be a duplicate …
- CVE-2023-39196Improper Authentication vulnerability in Apache Ozone. The …5.3
- CVE-2023-39197An out-of-bounds read vulnerability was found in Netfilter C…7.5
Are you affected by CVE-2023-39191?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST