ALSA-2023:5091

    Dashboard / Vulnerabilities / ALSA-2023:5091

    ALSA-2023:5091

    Published: 12 Sept 2023Last Modified: 4 Feb 2026

    Summary: Important: kernel-rt security and bug fix update

    Details: The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Security Fix(es): * kernel: UAF in nftables when nft_set_lookup_global triggered after handling named and anonymous sets in batch requests (CVE-2023-3390) * kernel: netfilter: nf_tables: fix chain binding transaction logic in the abort path of NFT_MSG_NEWRULE (CVE-2023-3610) * kernel: net/sched: cls_fw component can be exploited as result of failure in tcf_change_indev function (CVE-2023-3776) * kernel: netfilter: use-after-free due to improper element removal in nft_pipapo_remove() (CVE-2023-4004) * kernel: netfilter: nf_tables_newrule when adding a rule with NFTA_RULE_CHAIN_ID leads to use-after-free (CVE-2023-4147) * kernel: nf_tables: use-after-free in nft_chain_lookup_byid() (CVE-2023-31248) * kernel: nf_tables: stack-out-of-bounds-read in nft_byteorder_eval() (CVE-2023-35001) * kernel: save/restore speculative MSRs during S3 suspend/resume (CVE-2023-1637) * hw: amd: Cross-Process Information Leak (CVE-2023-20593) * kernel: bypass of shadow stack protection due to a logic error (CVE-2023-21102) 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. Bug Fix(es): * kernel-rt: update RT source tree to the latest AlmaLinux-9.2.z3 Batch (BZ#2228482)

    References: https://access.redhat.com/errata/RHSA-2023:5091, https://access.redhat.com/security/cve/CVE-2023-1637, https://access.redhat.com/security/cve/CVE-2023-20593, https://access.redhat.com/security/cve/CVE-2023-21102, https://access.redhat.com/security/cve/CVE-2023-31248, https://access.redhat.com/security/cve/CVE-2023-3390, https://access.redhat.com/security/cve/CVE-2023-35001, https://access.redhat.com/security/cve/CVE-2023-3610, https://access.redhat.com/security/cve/CVE-2023-3776, https://access.redhat.com/security/cve/CVE-2023-4004, https://access.redhat.com/security/cve/CVE-2023-4147, https://bugzilla.redhat.com/2181891, https://bugzilla.redhat.com/2213260, https://bugzilla.redhat.com/2213455, https://bugzilla.redhat.com/2217845, https://bugzilla.redhat.com/2220892, https://bugzilla.redhat.com/2220893, https://bugzilla.redhat.com/2225097, https://bugzilla.redhat.com/2225198, https://bugzilla.redhat.com/2225239, https://bugzilla.redhat.com/2225275, https://errata.almalinux.org/9/ALSA-2023-5091.html

    Affected packages

    Package

    Name: kernel-rt

    Purl: pkg:rpm/almalinux/kernel-rt

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -5.14.0-284.30.1.rt14.315.el9_2

    Affected versions

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    ALSA-2023:5091 | CVE-DB