{"id":"RLSA-2023:5091","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.\n\nSecurity Fix(es):\n\n* kernel: UAF in nftables when nft_set_lookup_global triggered after handling named and anonymous sets in batch requests (CVE-2023-3390)\n\n* kernel: netfilter: nf_tables: fix chain binding transaction logic in the abort path of NFT_MSG_NEWRULE (CVE-2023-3610)\n\n* kernel: net/sched: cls_fw component can be exploited as result of failure in tcf_change_indev function (CVE-2023-3776)\n\n* kernel: netfilter: use-after-free due to improper element removal in nft_pipapo_remove() (CVE-2023-4004)\n\n* kernel: netfilter: nf_tables_newrule when adding a rule with NFTA_RULE_CHAIN_ID leads to use-after-free (CVE-2023-4147)\n\n* kernel: nf_tables: use-after-free in nft_chain_lookup_byid() (CVE-2023-31248)\n\n* kernel: nf_tables: stack-out-of-bounds-read in nft_byteorder_eval() (CVE-2023-35001)\n\n* kernel: save/restore speculative MSRs during S3 suspend/resume (CVE-2023-1637)\n\n* hw: amd: Cross-Process Information Leak (CVE-2023-20593)\n\n* kernel: bypass of shadow stack protection due to a logic error (CVE-2023-21102)\n\nFor 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.\n\nBug Fix(es):\n\n* kernel-rt: update RT source tree to the latest Rocky Linux-9.2.z3 Batch (BZ#2228482)","modified":"2025-10-09T05:47:20.636234Z","published":"2023-09-19T12:09:59.109271Z","upstream":["CVE-2023-1637","CVE-2023-20593","CVE-2023-21102","CVE-2023-31248","CVE-2023-3390","CVE-2023-35001","CVE-2023-3610","CVE-2023-3776","CVE-2023-4004","CVE-2023-4147"],"references":[{"type":"ADVISORY","url":"https://errata.rockylinux.org/RLSA-2023:5091"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2181891"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2213260"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2213455"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2217845"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2220892"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2220893"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2225097"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2225198"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2225239"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2225275"}],"affected":[{"package":{"name":"kernel-rt","ecosystem":"Rocky Linux:9","purl":"pkg:rpm/rocky-linux/kernel-rt?distro=rocky-linux-9-x86-64&epoch=0"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:5.14.0-284.30.1.rt14.315.el9_2"}],"database_specific":{"yum_repository":"RT"}}],"database_specific":{"source":"https://storage.googleapis.com/resf-osv-data/RLSA-2023:5091.json"}}],"schema_version":"1.7.3","credits":[{"name":"Rocky Enterprise Software Foundation"},{"name":"Red Hat"}]}