Red Hat Security Advisory: kernel security, bug fix, and enhancement update
Red Hat has issued a critical security advisory for the Linux kernel packages in Red Hat Enterprise Linux 7 Extended Lifecycle Support. The update addresses multiple vulnerabilities including denial of service and memory corruption in RDMA umad (CVE-2026-23243), as well as other issues in ip6_tunnel, wifi brcmfmac, netfilter xt_tcpmss, xfs, and smb client components. These vulnerabilities could impact system stability and security. The advisory includes bug fixes and enhancements. Systems must be rebooted after applying the update for changes to take effect.
AI Analysis
Technical Summary
This Red Hat security advisory (RHSA-2026:27729) covers multiple vulnerabilities in the Linux kernel packages for Red Hat Enterprise Linux 7 Extended Lifecycle Support. The primary security fix addresses a denial of service and memory corruption issue in the RDMA umad component (CVE-2026-23243). Additional fixes address vulnerabilities in ip6_tunnel (CVE-2026-43037), wifi brcmfmac (CVE-2026-43110), netfilter xt_tcpmss (CVE-2026-43190), xfs filesystem (CVE-2026-43158), and smb client (CVE-2026-46243). The advisory includes bug fixes and enhancements related to these components. The update requires a system reboot to apply the fixes. No CVSS scores are provided in the advisory, but the overall impact is rated critical by Red Hat Product Security.
Potential Impact
The vulnerabilities addressed include denial of service and memory corruption, which can affect system stability and security. The issues span multiple kernel components, potentially allowing attackers to cause crashes or memory corruption. The advisory rates the overall security impact as critical. No known exploits in the wild have been reported at the time of the advisory.
Mitigation Recommendations
Red Hat has released an updated kernel package for Red Hat Enterprise Linux 7 Extended Lifecycle Support that addresses these vulnerabilities. Users should apply the update as detailed in the Red Hat advisory (https://access.redhat.com/articles/11258) and reboot their systems to ensure the fixes take effect. This is the official and recommended remediation.
Red Hat Security Advisory: kernel security, bug fix, and enhancement update
Description
Red Hat has issued a critical security advisory for the Linux kernel packages in Red Hat Enterprise Linux 7 Extended Lifecycle Support. The update addresses multiple vulnerabilities including denial of service and memory corruption in RDMA umad (CVE-2026-23243), as well as other issues in ip6_tunnel, wifi brcmfmac, netfilter xt_tcpmss, xfs, and smb client components. These vulnerabilities could impact system stability and security. The advisory includes bug fixes and enhancements. Systems must be rebooted after applying the update for changes to take effect.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This Red Hat security advisory (RHSA-2026:27729) covers multiple vulnerabilities in the Linux kernel packages for Red Hat Enterprise Linux 7 Extended Lifecycle Support. The primary security fix addresses a denial of service and memory corruption issue in the RDMA umad component (CVE-2026-23243). Additional fixes address vulnerabilities in ip6_tunnel (CVE-2026-43037), wifi brcmfmac (CVE-2026-43110), netfilter xt_tcpmss (CVE-2026-43190), xfs filesystem (CVE-2026-43158), and smb client (CVE-2026-46243). The advisory includes bug fixes and enhancements related to these components. The update requires a system reboot to apply the fixes. No CVSS scores are provided in the advisory, but the overall impact is rated critical by Red Hat Product Security.
Potential Impact
The vulnerabilities addressed include denial of service and memory corruption, which can affect system stability and security. The issues span multiple kernel components, potentially allowing attackers to cause crashes or memory corruption. The advisory rates the overall security impact as critical. No known exploits in the wild have been reported at the time of the advisory.
Mitigation Recommendations
Red Hat has released an updated kernel package for Red Hat Enterprise Linux 7 Extended Lifecycle Support that addresses these vulnerabilities. Users should apply the update as detailed in the Red Hat advisory (https://access.redhat.com/articles/11258) and reboot their systems to ensure the fixes take effect. This is the official and recommended remediation.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2026:27729
- Cve Count
- 6
- Additional Cves
- ["CVE-2026-43037","CVE-2026-43110","CVE-2026-43158","CVE-2026-43190","CVE-2026-46243"]
- Cvss Version
- null
Threat ID: 6a395a05eed863c81e08e73a
Added to database: 06/22/2026, 15:51:33 UTC
Last enriched: 08/07/2026, 00:04:57 UTC
Last updated: 08/07/2026, 00:41:12 UTC
Views: 206
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