Red Hat Security Advisory: kernel:4.18.0 security update
The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: media: edia: dvbdev: fix a use-after-free (CVE-2024-27043) * kernel: Bluetooth: l2cap: fix null-ptr-deref in l2cap_chan_timeout (CVE-2024-27399) * kernel: bpf: Add BPF_PROG_TYPE_CGROUP_SKB attach type enforcement in BPF_LINK_CREATE (CVE-2024-38564) * kernel: mptcp: pm: Fix uaf in __timer_delete_sync (CVE-2024-46858) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
AI Analysis
Technical Summary
This Red Hat security advisory (RHSA-2024:10281) addresses four vulnerabilities in the Linux kernel 4.18.0 used in Red Hat Enterprise Linux 8. The issues include a use-after-free in the media dvbdev component (CVE-2024-27043), a null pointer dereference in Bluetooth l2cap_chan_timeout (CVE-2024-27399), enforcement of BPF_PROG_TYPE_CGROUP_SKB attach type in BPF_LINK_CREATE (CVE-2024-38564), and a use-after-free in the multipath TCP timer deletion function __timer_delete_sync (CVE-2024-46858). Red Hat has released updated kernel packages that fix these vulnerabilities. The advisory rates the security impact as moderate and recommends applying the update and rebooting the system for the fixes to take effect.
Potential Impact
The vulnerabilities fixed include use-after-free and null pointer dereference bugs that could potentially lead to system instability or denial of service. The BPF attach type enforcement vulnerability addresses a potential security enforcement gap. The overall security impact is rated moderate by Red Hat, indicating these issues could affect system reliability or security but are not classified as critical or high severity.
Mitigation Recommendations
Red Hat has released updated kernel packages for Red Hat Enterprise Linux 8 that address these vulnerabilities. Users should apply the kernel:4.18.0 update as provided in advisory RHSA-2024:10281 and reboot their systems to ensure the fixes take effect. No additional mitigations are specified or required beyond applying the official update and rebooting.
Red Hat Security Advisory: kernel:4.18.0 security update
Description
The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: media: edia: dvbdev: fix a use-after-free (CVE-2024-27043) * kernel: Bluetooth: l2cap: fix null-ptr-deref in l2cap_chan_timeout (CVE-2024-27399) * kernel: bpf: Add BPF_PROG_TYPE_CGROUP_SKB attach type enforcement in BPF_LINK_CREATE (CVE-2024-38564) * kernel: mptcp: pm: Fix uaf in __timer_delete_sync (CVE-2024-46858) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Affected software
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This Red Hat security advisory (RHSA-2024:10281) addresses four vulnerabilities in the Linux kernel 4.18.0 used in Red Hat Enterprise Linux 8. The issues include a use-after-free in the media dvbdev component (CVE-2024-27043), a null pointer dereference in Bluetooth l2cap_chan_timeout (CVE-2024-27399), enforcement of BPF_PROG_TYPE_CGROUP_SKB attach type in BPF_LINK_CREATE (CVE-2024-38564), and a use-after-free in the multipath TCP timer deletion function __timer_delete_sync (CVE-2024-46858). Red Hat has released updated kernel packages that fix these vulnerabilities. The advisory rates the security impact as moderate and recommends applying the update and rebooting the system for the fixes to take effect.
Potential Impact
The vulnerabilities fixed include use-after-free and null pointer dereference bugs that could potentially lead to system instability or denial of service. The BPF attach type enforcement vulnerability addresses a potential security enforcement gap. The overall security impact is rated moderate by Red Hat, indicating these issues could affect system reliability or security but are not classified as critical or high severity.
Mitigation Recommendations
Red Hat has released updated kernel packages for Red Hat Enterprise Linux 8 that address these vulnerabilities. Users should apply the kernel:4.18.0 update as provided in advisory RHSA-2024:10281 and reboot their systems to ensure the fixes take effect. No additional mitigations are specified or required beyond applying the official update and rebooting.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2024:10281
- Cve Count
- 4
- Additional Cves
- ["CVE-2024-27399","CVE-2024-38564","CVE-2024-46858"]
- Cvss Version
- null
Threat ID: 6a3da2014853345fc18371c0
Added to database: 06/25/2026, 21:47:45 UTC
Last enriched: 06/25/2026, 22:55:36 UTC
Last updated: 08/21/2026, 15:55:55 UTC
Views: 62
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