Red Hat Security Advisory: kpatch-patch security update
🔗 CVE IDs covered (4)
📋 Description
CVE-2023-3090 — kernel: ipvlan: out-of-bounds write caused by unclear skb->cb CVE-2023-4004 — kernel: netfilter: use-after-free due to improper element removal in nft_pipapo_remove() CVE-2023-4128 — kernel: net/sched: Use-after-free vulnerabilities in the net/sched classifiers: cls_fw, cls_u32 and cls_route CVE-2023-35001 — kernel: nf_tables: stack-out-of-bounds-read in nft_byteorder_eval()
🎯 Affected products43
- Red Hat Enterprise Linux BaseOS EUS (v.8.6)
- kpatch-patch-4_18_0-372_46_1-0:1-6.el8_6.ppc64le as a component of Red Hat Enterprise Linux BaseOS EUS (v.8.6)
- kpatch-patch-4_18_0-372_46_1-0:1-6.el8_6.src as a component of Red Hat Enterprise Linux BaseOS EUS (v.8.6)
- kpatch-patch-4_18_0-372_46_1-0:1-6.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.8.6)
- kpatch-patch-4_18_0-372_46_1-debuginfo-0:1-6.el8_6.ppc64le as a component of Red Hat Enterprise Linux BaseOS EUS (v.8.6)
- kpatch-patch-4_18_0-372_46_1-debuginfo-0:1-6.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.8.6)
- kpatch-patch-4_18_0-372_46_1-debugsource-0:1-6.el8_6.ppc64le as a component of Red Hat Enterprise Linux BaseOS EUS (v.8.6)
- kpatch-patch-4_18_0-372_46_1-debugsource-0:1-6.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.8.6)
- kpatch-patch-4_18_0-372_51_1-0:1-5.el8_6.ppc64le as a component of Red Hat Enterprise Linux BaseOS EUS (v.8.6)
- kpatch-patch-4_18_0-372_51_1-0:1-5.el8_6.src as a component of Red Hat Enterprise Linux BaseOS EUS (v.8.6)
- kpatch-patch-4_18_0-372_51_1-0:1-5.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.8.6)
- kpatch-patch-4_18_0-372_51_1-debuginfo-0:1-5.el8_6.ppc64le as a component of Red Hat Enterprise Linux BaseOS EUS (v.8.6)
- kpatch-patch-4_18_0-372_51_1-debuginfo-0:1-5.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.8.6)
- kpatch-patch-4_18_0-372_51_1-debugsource-0:1-5.el8_6.ppc64le as a component of Red Hat Enterprise Linux BaseOS EUS (v.8.6)
- kpatch-patch-4_18_0-372_51_1-debugsource-0:1-5.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.8.6)
- kpatch-patch-4_18_0-372_52_1-0:1-4.el8_6.ppc64le as a component of Red Hat Enterprise Linux BaseOS EUS (v.8.6)
- kpatch-patch-4_18_0-372_52_1-0:1-4.el8_6.src as a component of Red Hat Enterprise Linux BaseOS EUS (v.8.6)
- kpatch-patch-4_18_0-372_52_1-0:1-4.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.8.6)
- kpatch-patch-4_18_0-372_52_1-debuginfo-0:1-4.el8_6.ppc64le as a component of Red Hat Enterprise Linux BaseOS EUS (v.8.6)
- kpatch-patch-4_18_0-372_52_1-debuginfo-0:1-4.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.8.6)
- kpatch-patch-4_18_0-372_52_1-debugsource-0:1-4.el8_6.ppc64le as a component of Red Hat Enterprise Linux BaseOS EUS (v.8.6)
- kpatch-patch-4_18_0-372_52_1-debugsource-0:1-4.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.8.6)
- kpatch-patch-4_18_0-372_57_1-0:1-3.el8_6.ppc64le as a component of Red Hat Enterprise Linux BaseOS EUS (v.8.6)
- kpatch-patch-4_18_0-372_57_1-0:1-3.el8_6.src as a component of Red Hat Enterprise Linux BaseOS EUS (v.8.6)
- kpatch-patch-4_18_0-372_57_1-0:1-3.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.8.6)
- kpatch-patch-4_18_0-372_57_1-debuginfo-0:1-3.el8_6.ppc64le as a component of Red Hat Enterprise Linux BaseOS EUS (v.8.6)
- kpatch-patch-4_18_0-372_57_1-debuginfo-0:1-3.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.8.6)
- kpatch-patch-4_18_0-372_57_1-debugsource-0:1-3.el8_6.ppc64le as a component of Red Hat Enterprise Linux BaseOS EUS (v.8.6)
- kpatch-patch-4_18_0-372_57_1-debugsource-0:1-3.el8_6.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.8.6)
- kpatch-patch-4_18_0-372_64_1-0:1-2.el8_6.ppc64le as a component of Red Hat Enterprise Linux BaseOS EUS (v.8.6)
- +13 more not shown
✅ Remediation
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 Workaround: This flaw can be mitigated by preventing the affected `ipvlan` kernel module from being loaded. For instructions on how to blacklist a kernel module, please see https://access.redhat.com/solutions/41278. Workaround: This flaw can be mitigated by preventing the affected netfilter kernel module from being loaded. For instructions on how to blacklist a kernel module, please see https://access.redhat.com/solutions/41278. Workaround: To mitigate this issue, it is possible to prevent the affected code from being loaded by blacklisting the kernel netfilter module. For instructions relating to how to blacklist a kernel module refer to: https://access.redhat.com/solutions/41278
🔗 References (7)
- selfhttps://access.redhat.com/errata/RHSA-2023:5548
- externalhttps://access.redhat.com/security/updates/classification/#important
- externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2218672
- externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2220892
- externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2225275
- externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2225511
- selfhttps://security.access.redhat.com/data/csaf/v2/advisories/2023/rhsa-2023_5548.json