Use After Free in Linux Kernel
CVE-2024-0193
A use-after-free flaw was found in the netfilter subsystem of the Linux kernel. If the catchall element is garbage-collected when the pipapo set is removed, the element can be deactivated twice. This can cause a use-after-free issue on an NFT_CHAIN object or NFT_OBJECT object, allowing a local unprivileged user with CAP_NET_ADMIN capability to escalate their privileges on the system.
Vulnerability class: Use-After-Free
EPSS: 0.008 (55.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Linux Linux_kernel
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9 — versions 0:5.14.0-362.24.1.el9_3
- Red Hat Enterprise Linux 9.0 Update Services For Sap Solutions — versions 0:5.14.0-70.105.1.el9_0, 0:5.14.0-70.105.1.rt21.177.el9_0
- Red Hat Enterprise Linux 9.2 Extended Update Support — versions 0:5.14.0-284.55.1.el9_2, 0:5.14.0-284.55.1.rt14.340.el9_2
- Red Hat Rhol-5.8-rhel-9 — versions v5.8.6-22, v5.8.6-11, v6.8.1-407
- Redhat Codeready_linux_builder — versions 9.0
- Redhat Codeready_linux_builder_for_arm64 — versions 9.0_aarch64
Weakness classification (CWE)
Public proof-of-concept exploits
References
- secalert@redhat.com (x_refsource_REDHAT, vendor-advisory, Vendor Advisory)
- secalert@redhat.com (x_refsource_REDHAT, vendor-advisory, Vendor Advisory)
- secalert@redhat.com (x_refsource_REDHAT, vendor-advisory, Vendor Advisory)
- secalert@redhat.com (x_refsource_REDHAT, vendor-advisory, Vendor Advisory)
- secalert@redhat.com (x_refsource_REDHAT, vendor-advisory, Vendor Advisory)
- secalert@redhat.com (x_refsource_REDHAT, vendor-advisory, Vendor Advisory)
- secalert@redhat.com (x_refsource_REDHAT, Third Party Advisory, Mitigation, vdb-entry)
- secalert@redhat.com (x_refsource_REDHAT, issue-tracking, Patch, Third Party Advisory, Issue Tracking)
Frequently asked questions
- What is CVE-2024-0193?
- CVE-2024-0193 is a high-severity vulnerability in Linux Kernel, classified under Use After Free. CVSS score: 7.8/10. Published 2024-01-02.
- How severe is CVE-2024-0193?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2024-0193 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.