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Red Hat Security Advisory 2023-7423-01
Red Hat Security Advisory 2023-7423-01 - An update for kernel is now available for Red Hat Enterprise Linux 7. Issues addressed include a use-after-free vulnerability.
The following advisory data is extracted from:https://access.redhat.com/security/data/csaf/v2/advisories/2023/rhsa-2023_7423.jsonRed Hat officially shut down their mailing list notifications October 10, 2023. Due to this, Packet Storm has recreated the below data as a reference point to raise awareness. It must be noted that due to an inability to easily track revision updates without crawling Red Hat's archive, these advisories are single notifications and we strongly suggest that you visit the Red Hat provided links to ensure you have the latest information available if the subject matter listed pertains to your environment.- Packet Storm Staff====================================================================Red Hat Security AdvisorySynopsis: Important: kernel security updateAdvisory ID: RHSA-2023:7423-01Product: Red Hat Enterprise LinuxAdvisory URL: https://access.redhat.com/errata/RHSA-2023:7423Issue date: 2023-11-21Revision: 01CVE Names: CVE-2022-40982====================================================================Summary: An update for kernel is now available for Red Hat Enterprise Linux 7.Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.Description:The kernel packages contain the Linux kernel, the core of any Linux operating system.Security Fix(es):* kernel: net/sched: sch_qfq component can be exploited if in qfq_change_agg function happens qfq_enqueue overhead (CVE-2023-3611)* kernel: net/sched: cls_fw component can be exploited as result of failure in tcf_change_indev function (CVE-2023-3776)* kernel: net/sched: Use-after-free vulnerabilities in the net/sched classifiers: cls_fw, cls_u32 and cls_route (CVE-2023-4128, CVE-2023-4206, CVE-2023-4207, CVE-2023-4208)* hw: Intel: Gather Data Sampling (GDS) side channel vulnerability (CVE-2022-40982)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.Solution:https://access.redhat.com/articles/11258CVEs:CVE-2022-40982References:https://access.redhat.com/security/updates/classification/#importanthttps://access.redhat.com/solutions/7027704https://bugzilla.redhat.com/show_bug.cgi?id=2223949https://bugzilla.redhat.com/show_bug.cgi?id=2225097https://bugzilla.redhat.com/show_bug.cgi?id=2225191https://bugzilla.redhat.com/show_bug.cgi?id=2225511
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