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OpenAdvisories
High RHSA-2023:7558 6 CVEs

Red Hat Security Advisory: kpatch-patch security update

Published Sep 13, 2024 · Updated Aug 7, 2026

Ecosystem: Red Hat

Fixed packages 15

ReleasePackageFixed in
Red Hat · RHEL 8.8 EUS rhel_eus:8.8::baseos kpatch-patch-4_18_0-477_10_1 0:1-4.el8_8
Red Hat · RHEL 8.8 EUS rhel_eus:8.8::baseos kpatch-patch-4_18_0-477_10_1-debuginfo 0:1-4.el8_8
Red Hat · RHEL 8.8 EUS rhel_eus:8.8::baseos kpatch-patch-4_18_0-477_10_1-debugsource 0:1-4.el8_8
Red Hat · RHEL 8.8 EUS rhel_eus:8.8::baseos kpatch-patch-4_18_0-477_13_1 0:1-3.el8_8
Red Hat · RHEL 8.8 EUS rhel_eus:8.8::baseos kpatch-patch-4_18_0-477_13_1-debuginfo 0:1-3.el8_8
Red Hat · RHEL 8.8 EUS rhel_eus:8.8::baseos kpatch-patch-4_18_0-477_13_1-debugsource 0:1-3.el8_8
Red Hat · RHEL 8.8 EUS rhel_eus:8.8::baseos kpatch-patch-4_18_0-477_15_1 0:1-3.el8_8
Red Hat · RHEL 8.8 EUS rhel_eus:8.8::baseos kpatch-patch-4_18_0-477_15_1-debuginfo 0:1-3.el8_8
Red Hat · RHEL 8.8 EUS rhel_eus:8.8::baseos kpatch-patch-4_18_0-477_15_1-debugsource 0:1-3.el8_8
Red Hat · RHEL 8.8 EUS rhel_eus:8.8::baseos kpatch-patch-4_18_0-477_21_1 0:1-2.el8_8
Red Hat · RHEL 8.8 EUS rhel_eus:8.8::baseos kpatch-patch-4_18_0-477_21_1-debuginfo 0:1-2.el8_8
Red Hat · RHEL 8.8 EUS rhel_eus:8.8::baseos kpatch-patch-4_18_0-477_21_1-debugsource 0:1-2.el8_8
Red Hat · RHEL 8.8 EUS rhel_eus:8.8::baseos kpatch-patch-4_18_0-477_27_1 0:1-1.el8_8
Red Hat · RHEL 8.8 EUS rhel_eus:8.8::baseos kpatch-patch-4_18_0-477_27_1-debuginfo 0:1-1.el8_8
Red Hat · RHEL 8.8 EUS rhel_eus:8.8::baseos kpatch-patch-4_18_0-477_27_1-debugsource 0:1-1.el8_8

Vulnerabilities 6

  • High 7.8
    CVE-2023-3609 Public exploit

    Use-after-free in Linux kernel's net/sched: cls_u32 component

    A use-after-free vulnerability in the Linux kernel's net/sched: cls_u32 component can be exploited to achieve local privilege escalation. If tcf_change_indev() fails, u32_set_parms() will immediately return an error after incrementing or decrementing the refe…

    Linux kernel linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  • High 7.8
    CVE-2023-4206

    Use-after-free in Linux kernel's net/sched: cls_route component

    A use-after-free vulnerability in the Linux kernel's net/sched: cls_route component can be exploited to achieve local privilege escalation. When route4_change() is called on an existing filter, the whole tcf_result struct is always copied into the new instanc…

    Linux kernel linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  • High 7.8
    CVE-2023-4207

    Use-after-free in Linux kernel's net/sched: cls_fw component

    A use-after-free vulnerability in the Linux kernel's net/sched: cls_fw component can be exploited to achieve local privilege escalation. When fw_change() is called on an existing filter, the whole tcf_result struct is always copied into the new instance of th…

    Linux kernel linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  • High 7.8
    CVE-2023-4208

    Use-after-free in Linux kernel's net/sched: cls_u32 component

    A use-after-free vulnerability in the Linux kernel's net/sched: cls_u32 component can be exploited to achieve local privilege escalation. When u32_change() is called on an existing filter, the whole tcf_result struct is always copied into the new instance of …

    Linux kernel linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  • High 7.0
    CVE-2023-42753

    Kernel: netfilter: potential slab-out-of-bound access due to integer underflow

    An array indexing vulnerability was found in the netfilter subsystem of the Linux kernel. A missing macro could lead to a miscalculation of the `h->nets` array offset, providing attackers with the primitive to arbitrarily increment/decrement a memory buffer o…

    Red Hat Red Hat Enterprise Linux 9 Red Hat Enterprise Linux 8 Red Hat Enterprise Linux 7 Linux Debian Ubuntu Azure Linux
  • Unscored —
    CVE-2023-4128 Public exploit Rejected

    ** REJECT ** DO NOT USE THIS CVE RECORD. ConsultIDs: CVE-2023-4206, CVE-2023-4207, CVE-2023-4208. Reason: This record i…

    linux-raspi2 linux-hwe linux-azure linux-riscv Ubuntu

References

  • article
    https://access.redhat.com/security/updates/classification/#important
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2225201
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2225511
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2239843
  • advisory
    https://security.access.redhat.com/data/csaf/v2/advisories/2023/rhsa-2023_7558.json
  • report
    https://access.redhat.com/security/cve/CVE-2023-3609
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2023-3609
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2023-3609
  • article
    https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=04c55383fa5689357bcdd2c8036725a55ed632bc
  • report
    https://access.redhat.com/security/cve/CVE-2023-4128
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2261965
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2023-4128
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2023-4128
  • report
    https://access.redhat.com/security/cve/CVE-2023-4206
  • report
    https://access.redhat.com/security/cve/CVE-2023-4207
  • report
    https://access.redhat.com/security/cve/CVE-2023-4208
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2023-4206
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2023-4206
  • article
    https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3044b16e7c6fe5d24b1cdbcf1bd0a9d92d1ebd81
  • article
    https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=76e42ae831991c828cffa8c37736ebfb831ad5ec
  • article
    https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b80b829e9e2c1b3f7aae34855e04d8f6ecaf13c8
  • article
    https://lore.kernel.org/netdev/193d6cdf-d6c9-f9be-c36a-b2a7551d5fb6@mojatatu.com/
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2023-4207
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2023-4207
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2023-4208
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2023-4208
  • report
    https://access.redhat.com/security/cve/CVE-2023-42753
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2023-42753
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2023-42753
  • article
    https://seclists.org/oss-sec/2023/q3/216