{"id":"CVE-2023-23586","aliases":["BELL-CVE-2023-23586","DEBIAN-CVE-2023-23586","DLA-3349-1","EUVD-2023-27686","GHSA-h86q-32m7-8f9v","OESA-2023-1152","OESA-2023-1157","SUSE-SU-2023:2502-1","SUSE-SU-2023:2611-1","SUSE-SU-2023:2651-1","UBUNTU-CVE-2023-23586"],"status":"published","title":"Use after free in io_uring in the Linux Kernel","description":"Due to a vulnerability in the io_uring subsystem, it is possible to leak kernel memory information to the user process. timens_install calls current_is_single_threaded to determine if the current process is single-threaded, but this call does not consider io_uring's io_worker threads, thus it is possible to insert a time namespace's vvar page to process's memory space via a page fault. When this time namespace is destroyed, the vvar page is also freed, but not removed from the process' memory, and a next page allocated by the kernel will be still available from the user-space process and can leak memory contents via this (read-only) use-after-free vulnerability. We recommend upgrading past version 5.10.161 or commit  788d0824269bef539fe31a785b1517882eafed93 https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/io_uring","severity":{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00268,"percentile":0.19079,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-416"],"published":"2023-02-17T12:25:35Z","modified":"2026-10-26T18:00:32Z","fixes":[{"ecosystem":"Debian:12","package":"linux","fixed_in":["5.14.6-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"linux","fixed_in":["5.14.6-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"linux","fixed_in":["5.14.6-1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"linux","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.14.6-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"linux","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.14.6-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"linux","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.14.6-1"}]}]},{"source":"osv","ecosystem":"Debian:10","package":"linux-5.10","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.10.162-1~deb10u1"}]}],"versions":["5.10.136-1~deb10u1","5.10.136-1~deb10u2","5.10.136-1~deb10u3","5.10.149-2~deb10u1","5.10.158-2~deb10u1"],"bundled":15},{"source":"osv","ecosystem":"openEuler:22.03-LTS","package":"kernel","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.10.0-60.84.0.108.oe2203"}]}],"bundled":2},{"source":"osv","ecosystem":"openEuler:22.03-LTS-SP1","package":"kernel","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.10.0-136.21.0.97.oe2203sp1"}]}],"bundled":4},{"source":"osv","ecosystem":"SUSE:Real 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kernel"},{"vendor":"linux","product":"linux_kernel"}],"references":[{"url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/io_uring?h=linux-5.10.y\u0026id=788d0824269bef539fe31a785b1517882eafed93","tags":["x_transferred","Mailing List","Patch","fix","report"]},{"url":"https://kernel.dance/#788d0824269bef539fe31a785b1517882eafed93","tags":["x_transferred","Patch","fix","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-23586","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-h86q-32m7-8f9v"},{"url":"https://docs.bell-sw.com/security/cves/CVE-2023-23586","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2023-23586","tags":["advisory"]},{"url":"https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2023-1152","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-26607","tags":["advisory"]},{"url":"https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2023-1157","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-0240","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-0615","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-0045","tags":["advisory"]},{"url":"https://www.suse.com/support/update/announcement/2023/suse-su-20232502-1/","tags":["advisory"]},{"url":"https://bugzilla.suse.com/1199636","tags":["report"]},{"url":"https://bugzilla.suse.com/1204405","tags":["report"]},{"url":"https://bugzilla.suse.com/1205756","tags":["report"]},{"url":"https://bugzilla.suse.com/1205758","tags":["report"]},{"url":"https://bugzilla.suse.com/1205760","tags":["report"]},{"url":"https://bugzilla.suse.com/1205762","tags":["report"]},{"url":"https://bugzilla.suse.com/1205803","tags":["report"]},{"url":"https://bugzilla.suse.com/1206024","tags":["report"]},{"url":"https://bugzilla.suse.com/1208474","tags":["report"]},{"url":"https://bugzilla.suse.com/1208604","tags":["report"]},{"url":"https://bugzilla.suse.com/1209287","tags":["report"]},{"url":"https://bugzilla.suse.com/1209779","tags":["report"]},{"url":"https://bugzilla.suse.com/1210715","tags":["report"]},{"url":"https://bugzilla.suse.com/1210783","tags":["report"]},{"url":"https://bugzilla.suse.com/1210940","tags":["report"]},{"url":"https://bugzilla.suse.com/1211037","tags":["report"]},{"url":"https://bugzilla.suse.com/1211043","tags":["report"]},{"url":"https://bugzilla.suse.com/1211105","tags":["report"]},{"url":"https://bugzilla.suse.com/1211131","tags":["report"]},{"url":"https://bugzilla.suse.com/1211186","tags":["report"]},{"url":"https://bugzilla.suse.com/1211203","tags":["report"]},{"url":"https://bugzilla.suse.com/1211590","tags":["report"]},{"url":"https://bugzilla.suse.com/1211592","tags":["report"]},{"url":"https://bugzilla.suse.com/1211596","tags":["report"]},{"url":"https://bugzilla.suse.com/1211622","tags":["report"]},{"url":"https://www.suse.com/security/cve/CVE-2020-36694","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2022-3566","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2022-4269","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2022-45884","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2022-45885","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2022-45886","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2022-45887","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2022-45919","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2023-1079","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2023-1380","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2023-1637","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2023-2156","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2023-2194","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2023-23586","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2023-2483","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2023-2513","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2023-31084","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2023-31436","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2023-32233","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2023-32269","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2023-33288","tags":["web"]},{"url":"https://www.suse.com/support/update/announcement/2023/suse-su-20232611-1/","tags":["advisory"]},{"url":"https://bugzilla.suse.com/1184208","tags":["report"]},{"url":"https://www.suse.com/security/cve/CVE-2021-29650","tags":["web"]},{"url":"https://www.suse.com/support/update/announcement/2023/suse-su-20232651-1/","tags":["advisory"]},{"url":"https://bugzilla.suse.com/1172073","tags":["report"]},{"url":"https://bugzilla.suse.com/1191731","tags":["report"]},{"url":"https://bugzilla.suse.com/1199046","tags":["report"]},{"url":"https://bugzilla.suse.com/1210498","tags":["report"]},{"url":"https://bugzilla.suse.com/1210791","tags":["report"]},{"url":"https://bugzilla.suse.com/1211089","tags":["report"]},{"url":"https://bugzilla.suse.com/1211187","tags":["report"]},{"url":"https://bugzilla.suse.com/1211260","tags":["report"]},{"url":"https://bugzilla.suse.com/1211796","tags":["report"]},{"url":"https://www.suse.com/security/cve/CVE-2023-2124","tags":["web"]},{"url":"https://ubuntu.com/security/CVE-2023-23586","tags":["report"]},{"url":"https://www.linuxkernelcves.com/cves/CVE-2022-20424","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2023-23586","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2023-23586","title":"Use after free in io_uring in the Linux Kernel","description":"Due to a vulnerability in the io_uring subsystem, it is possible to leak kernel memory information to the user process. timens_install calls current_is_single_threaded to determine if the current process is single-threaded, but this call does not consider io_uring's io_worker threads, thus it is possible to insert a time namespace's vvar page to process's memory space via a page fault. When this time namespace is destroyed, the vvar page is also freed, but not removed from the process' memory, and a next page allocated by the kernel will be still available from the user-space process and can leak memory contents via this (read-only) use-after-free vulnerability. We recommend upgrading past version 5.10.161 or commit  788d0824269bef539fe31a785b1517882eafed93 https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/io_uring \n","status":"published","published":"2023-02-17T12:25:35Z","modified":"2025-03-12T20:08:30.87Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-416"],"updated_at":"2026-11-02T14:35:20.812737Z"}],"euvd":[{"id":"EUVD-2023-27686","description":"Due to a vulnerability in the io_uring subsystem, it is possible to leak kernel memory information to the user process. timens_install calls current_is_single_threaded to determine if the current process is single-threaded, but this call does not consider io_uring's io_worker threads, thus it is possible to insert a time namespace's vvar page to process's memory space via a page fault. When this time namespace is destroyed, the vvar page is also freed, but not removed from the process' memory, and a next page allocated by the kernel will be still available from the user-space process and can leak memory contents via this (read-only) use-after-free vulnerability. We recommend upgrading past version 5.10.161 or commit  788d0824269bef539fe31a785b1517882eafed93 https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/io_uring \n","status":"published","published":"2023-02-17T12:25:35Z","modified":"2025-03-12T20:08:30Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T20:53:05.95539Z"}],"ghsa":[{"id":"GHSA-h86q-32m7-8f9v","title":"Due to a vulnerability in the io_uring subsystem, it is possible to leak kernel memory...","description":"Due to a vulnerability in the io_uring subsystem, it is possible to leak kernel memory information to the user process. timens_install calls current_is_single_threaded to determine if the current process is single-threaded, but this call does not consider io_uring's io_worker threads, thus it is possible to insert a time namespace's vvar page to process's memory space via a page fault. When this time namespace is destroyed, the vvar page is also freed, but not removed from the process' memory, and a next page allocated by the kernel will be still available from the user-space process and can leak memory contents via this (read-only) use-after-free vulnerability. We recommend upgrading past version 5.10.161 or commit 788d0824269bef539fe31a785b1517882eafed93 https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/io_uring","status":"published","published":"2023-02-17T15:30:25Z","modified":"2023-03-07T05:07:56Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"cwes":["CWE-416"],"updated_at":"2026-11-02T14:54:17.182344Z"}],"nvd":[{"id":"CVE-2023-23586","description":"Due to a vulnerability in the io_uring subsystem, it is possible to leak kernel memory information to the user process. timens_install calls current_is_single_threaded to determine if the current process is single-threaded, but this call does not consider io_uring's io_worker threads, thus it is possible to insert a time namespace's vvar page to process's memory space via a page fault. When this time namespace is destroyed, the vvar page is also freed, but not removed from the process' memory, and a next page allocated by the kernel will be still available from the user-space process and can leak memory contents via this (read-only) use-after-free vulnerability. We recommend upgrading past version 5.10.161 or commit  788d0824269bef539fe31a785b1517882eafed93 https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/io_uring \n","status":"published","published":"2023-02-17T13:15:10.737Z","modified":"2026-06-17T05:37:30.96Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"secondary"},{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-416"],"updated_at":"2026-11-02T14:07:47.623983Z"}],"osv":[{"id":"BELL-CVE-2023-23586","title":"CVE-2023-23586 does not affect BellSoft software","status":"withdrawn","published":"2023-10-18T13:45:19.601576Z","modified":"2026-01-26T09:49:47.433172Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T15:28:17.742221Z"},{"id":"CVE-2023-23586","description":"Due to a vulnerability in the io_uring subsystem, it is possible to leak kernel memory information to the user process. timens_install calls current_is_single_threaded to determine if the current process is single-threaded, but this call does not consider io_uring's io_worker threads, thus it is possible to insert a time namespace's vvar page to process's memory space via a page fault. When this time namespace is destroyed, the vvar page is also freed, but not removed from the process' memory, and a next page allocated by the kernel will be still available from the user-space process and can leak memory contents via this (read-only) use-after-free vulnerability. We recommend upgrading past version 5.10.161 or commit  788d0824269bef539fe31a785b1517882eafed93 https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/io_uring \n","status":"published","published":"2023-02-17T13:15:10.737Z","modified":"2026-03-14T11:58:33.609673Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T15:44:30.709518Z"},{"id":"DEBIAN-CVE-2023-23586","description":"Due to a vulnerability in the io_uring subsystem, it is possible to leak kernel memory information to the user process. timens_install calls current_is_single_threaded to determine if the current process is single-threaded, but this call does not consider io_uring's io_worker threads, thus it is possible to insert a time namespace's vvar page to process's memory space via a page fault. When this time namespace is destroyed, the vvar page is also freed, but not removed from the process' memory, and a next page allocated by the kernel will be still available from the user-space process and can leak memory contents via this (read-only) use-after-free vulnerability. We recommend upgrading past version 5.10.161 or commit  788d0824269bef539fe31a785b1517882eafed93 https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/io_uring","status":"published","published":"2023-02-17T13:15:10.737Z","modified":"2026-10-26T18:00:32.380052877Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T15:45:39.369204Z"},{"id":"OESA-2023-1152","title":"kernel security update","description":"The Linux Kernel, the operating system core itself.\r\n\r\nSecurity Fix(es):\r\n\r\nDue to a vulnerability in the io_uring subsystem, it is possible to leak kernel memory information to the user process. timens_install calls current_is_single_threaded to determine if the current process is single-threaded, but this call does not consider io_uring\u0026apos;s io_worker threads, thus it is possible to insert a time namespace\u0026apos;s vvar page to process\u0026apos;s memory space via a page fault. When this time namespace is destroyed, the vvar page is also freed, but not removed from the process\u0026apos; memory, and a next page allocated by the kernel will be still available from the user-space process and can leak memory contents via this (read-only) use-after-free vulnerability. We recommend upgrading past version 5.10.161 or commit 788d0824269bef539fe31a785b1517882eafed93 https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/io_uring(CVE-2023-23586)\r\n\r\nIn the Linux kernel 6.0.8, there is an out-of-bounds read in ntfs_attr_find in fs/ntfs/attrib.c.(CVE-2023-26607)","status":"published","published":"2023-03-10T11:05:37Z","modified":"2026-08-18T01:17:37.23715054Z","cvss":[{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:52:39.934788Z"},{"id":"OESA-2023-1157","title":"kernel security update","description":"The Linux Kernel, the operating system core itself.\r\n\r\nSecurity Fix(es):\r\n\r\nThere is a logic error in io_uring\u0026apos;s implementation which can be used to trigger a use-after-free vulnerability leading to privilege escalation. In the io_prep_async_work function the assumption that the last io_grab_identity call cannot return false is not true, and in this case the function will use the init_cred or the previous linked requests identity to do operations instead of using the current identity. This can lead to reference counting issues causing use-after-free. We recommend upgrading past version 5.10.161.(CVE-2023-0240)\r\n\r\nA memory leak flaw and potential divide by zero and Integer overflow was found in the Linux kernel V4L2 and vivid test code functionality. This issue occurs when a user triggers ioctls, such as VIDIOC_S_DV_TIMINGS ioctl. This could allow a local user to crash the system if vivid test code enabled.(CVE-2023-0615)\r\n\r\nThe Linux kernel does not correctly mitigate SMT attacks, as discovered\nthrough a strange pattern in the kernel API using STIBP as a mitigation[1\n\u0026lt;https://docs.kernel.org/userspace-api/spec_ctrl.html\u0026gt;], leaving the\nprocess exposed for a short period of time after a syscall. The kernel also\ndoes not issue an IBPB immediately during the syscall.\nThe ib_prctl_set [2\n\u0026lt;https://elixir.bootlin.com/linux/v5.15.56/source/arch/x86/kernel/cpu/bugs.c#L1467\u0026gt;]function\nupdates the Thread Information Flags (TIFs) for the task and updates the\nSPEC_CTRL MSR on the function __speculation_ctrl_update [3\n\u0026lt;https://elixir.bootlin.com/linux/v5.15.56/source/arch/x86/kernel/process.c#L557\u0026gt;],\nbut the IBPB is only issued on the next schedule, when the TIF bits are\nchecked. This leaves the victim vulnerable to values already injected on\nthe BTB, prior to the prctl syscall.\nThe behavior is only corrected after a reschedule of the task happens.\nFurthermore, the kernel entrance (due to the syscall itself), does not\nissue an IBPB in the default scenarios (i.e., when the kernel protects\nitself via retpoline or eIBRS).(CVE-2023-0045)\r\n\r\nDue to a vulnerability in the io_uring subsystem, it is possible to leak kernel memory information to the user process. timens_install calls current_is_single_threaded to determine if the current process is single-threaded, but this call does not consider io_uring\u0026apos;s io_worker threads, thus it is possible to insert a time namespace\u0026apos;s vvar page to process\u0026apos;s memory space via a page fault. When this time namespace is destroyed, the vvar page is also freed, but not removed from the process\u0026apos; memory, and a next page allocated by the kernel will be still available from the user-space process and can leak memory contents via this (read-only) use-after-free vulnerability. We recommend upgrading past version 5.10.161 or commit 788d0824269bef539fe31a785b1517882eafed93 https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/io_uring(CVE-2023-23586)","status":"published","published":"2023-03-10T11:05:38Z","modified":"2026-08-18T01:17:38.525781483Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:52:39.934788Z"},{"id":"UBUNTU-CVE-2023-23586","description":"Due to a vulnerability in the io_uring subsystem, it is possible to leak kernel memory information to the user process. timens_install calls current_is_single_threaded to determine if the current process is single-threaded, but this call does not consider io_uring's io_worker threads, thus it is possible to insert a time namespace's vvar page to process's memory space via a page fault. When this time namespace is destroyed, the vvar page is also freed, but not removed from the process' memory, and a next page allocated by the kernel will be still available from the user-space process and can leak memory contents via this (read-only) use-after-free vulnerability. We recommend upgrading past version 5.10.161 or commit  788d0824269bef539fe31a785b1517882eafed93 https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/io_uring","status":"published","published":"2023-02-17T13:15:00Z","modified":"2025-10-24T05:01:48Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium"},{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T16:54:20.198616Z"},{"id":"DLA-3349-1","title":"linux-5.10 - security update","status":"published","published":"2023-03-02T00:00:00Z","modified":"2026-03-09T01:20:15.537716Z","updated_at":"2026-11-02T15:46:11.734021Z"},{"id":"SUSE-SU-2023:2502-1","title":"Security update for the Linux Kernel","description":"\nThe SUSE Linux Enterprise 15 SP3 RT kernel was updated to receive various security and bugfixes.\n\n\nThe following security bugs were fixed:\n\n- CVE-2023-2156: Fixed a flaw in the networking subsystem within the handling of the RPL protocol (bsc#1211131).\n- CVE-2023-1637: Fixed vulnerability that could lead to unauthorized access to CPU memory after resuming CPU from suspend-to-RAM (bsc#1209779).\n- CVE-2022-3566: Fixed race condition in the TCP Handler (bsc#1204405).\n- CVE-2020-36694: Fixed an use-after-free issue in netfilter in the packet processing context (bsc#1211596).\n- CVE-2023-1079: Fixed a use-after-free problem that could have been triggered in asus_kbd_backlight_set when plugging/disconnecting a malicious USB device (bsc#1208604).\n- CVE-2023-33288: Fixed a use-after-free in bq24190_remove in drivers/power/supply/bq24190_charger.c (bsc#1211590).\n- CVE-2022-45886: Fixed a .disconnect versus dvb_device_open race condition in dvb_net.c that lead to a use-after-free (bsc#1205760).\n- CVE-2022-45885: Fixed a race condition in dvb_frontend.c that could cause a use-after-free when a device is disconnected (bsc#1205758).\n- CVE-2022-45887: Fixed a memory leak in ttusb_dec.c caused by the lack of a dvb_frontend_detach call (bsc#1205762).\n- CVE-2022-45919: Fixed a use-after-free in dvb_ca_en50221.c that could occur if there is a disconnect after an open, because of the lack of a wait_event (bsc#1205803).\n- CVE-2022-45884: Fixed a use-after-free in dvbdev.c, related to dvb_register_device dynamically allocating fops (bsc#1205756).\n- CVE-2023-31084: Fixed a blocking issue in drivers/media/dvb-core/dvb_frontend.c (bsc#1210783).\n- CVE-2023-31436: Fixed an out-of-bounds write in qfq_change_class() because lmax can exceed QFQ_MIN_LMAX (bsc#1210940 bsc#1211260).\n- CVE-2023-2194: Fixed an out-of-bounds write vulnerability in the SLIMpro I2C device driver (bsc#1210715).\n- CVE-2023-32269: Fixed a use-after-free in af_netrom.c, related to the fact that accept() was also allowed for a successfully connected AF_NETROM socket (bsc#1211186).\n- CVE-2023-32233: Fixed a use-after-free in Netfilter nf_tables when processing batch requests (bsc#1211043).\n- CVE-2022-4269: Fixed a flaw was found inside the Traffic Control (TC) subsystem (bsc#1206024).\n- CVE-2023-1380: Fixed a slab-out-of-bound read problem in brcmf_get_assoc_ies() (bsc#1209287).\n- CVE-2023-2513: Fixed a use-after-free vulnerability in the ext4 filesystem (bsc#1211105).\n- CVE-2023-2483: Fixed a use after free bug in emac_remove due caused by a race condition (bsc#1211037).\n- CVE-2023-23586: Fixed a memory information leak in the io_uring subsystem (bsc#1208474).\n\nThe following non-security bugs were fixed:\n\n- Drivers: hv: vmbus: Optimize vmbus_on_event (bsc#1211622).\n- SUNRPC: Ensure the transport backchannel association (bsc#1211203).\n- ipv6: sr: fix out-of-bounds read when setting HMAC data (bsc#1211592).\n- s390,dcssblk,dax: Add dax zero_page_range operation to dcssblk driver (bsc#1199636).\n","status":"published","published":"2023-06-13T15:39:53Z","modified":"2026-02-04T04:37:45.476372Z","updated_at":"2026-11-02T15:53:53.019382Z"},{"id":"SUSE-SU-2023:2611-1","title":"Security update for the Linux Kernel","description":"The SUSE Linux Enterprise 15 SP3 kernel was updated to receive various security and bugfixes.\n\n\nThe following security bugs were fixed:\n\n- CVE-2023-2156: Fixed a flaw in the networking subsystem within the handling of the RPL protocol (bsc#1211131).\n- CVE-2023-1637: Fixed vulnerability that could lead to unauthorized access to CPU memory after resuming CPU from suspend-to-RAM (bsc#1209779).\n- CVE-2022-3566: Fixed race condition in the TCP Handler (bsc#1204405).\n- CVE-2021-29650: Fixed an issue where the netfilter subsystem allowed attackers to cause a denial of service (bsc#1184208).\n- CVE-2020-36694: Fixed an use-after-free issue in netfilter in the packet processing context (bsc#1211596).\n- CVE-2023-1079: Fixed a use-after-free problem that could have been triggered in asus_kbd_backlight_set when plugging/disconnecting a malicious USB device (bsc#1208604).\n- CVE-2023-33288: Fixed a use-after-free in bq24190_remove in drivers/power/supply/bq24190_charger.c (bsc#1211590).\n- CVE-2022-45886: Fixed a .disconnect versus dvb_device_open race condition in dvb_net.c that lead to a use-after-free (bsc#1205760).\n- CVE-2022-45885: Fixed a race condition in dvb_frontend.c that could cause a use-after-free when a device is disconnected (bsc#1205758).\n- CVE-2022-45887: Fixed a memory leak in ttusb_dec.c caused by the lack of a dvb_frontend_detach call (bsc#1205762).\n- CVE-2022-45919: Fixed a use-after-free in dvb_ca_en50221.c that could occur if there is a disconnect after an open, because of the lack of a wait_event (bsc#1205803).\n- CVE-2022-45884: Fixed a use-after-free in dvbdev.c, related to dvb_register_device dynamically allocating fops (bsc#1205756).\n- CVE-2023-31084: Fixed a blocking issue in drivers/media/dvb-core/dvb_frontend.c (bsc#1210783).\n- CVE-2023-31436: Fixed an out-of-bounds write in qfq_change_class() because lmax can exceed QFQ_MIN_LMAX (bsc#1210940).\n- CVE-2023-2194: Fixed an out-of-bounds write vulnerability in the SLIMpro I2C device driver (bsc#1210715).\n- CVE-2023-32269: Fixed a use-after-free in af_netrom.c, related to the fact that accept() was also allowed for a successfully connected AF_NETROM socket (bsc#1211186).\n- CVE-2023-32233: Fixed a use-after-free in Netfilter nf_tables when processing batch requests (bsc#1211043).\n- CVE-2022-4269: Fixed a flaw was found inside the Traffic Control (TC) subsystem (bsc#1206024).\n- CVE-2023-1380: Fixed a slab-out-of-bound read problem in brcmf_get_assoc_ies() (bsc#1209287).\n- CVE-2023-2513: Fixed a use-after-free vulnerability in the ext4 filesystem (bsc#1211105).\n- CVE-2023-2483: Fixed a use after free bug in emac_remove caused by a race condition (bsc#1211037).\n- CVE-2023-23586: Fixed a memory information leak in the io_uring subsystem (bsc#1208474).\n\nThe following non-security bugs were fixed:\n\n- SUNRPC: Ensure the transport backchannel association (bsc#1211203).\n- hv: vmbus: Optimize vmbus_on_event (bsc#1211622).\n- ipv6: sr: fix out-of-bounds read when setting HMAC data (bsc#1211592).\n- s390,dcssblk,dax: Add dax zero_page_range operation to dcssblk driver (bsc#1199636).\n","status":"published","published":"2023-06-22T07:55:12Z","modified":"2026-02-04T02:38:59.716274Z","updated_at":"2026-11-02T15:53:53.019382Z"},{"id":"SUSE-SU-2023:2651-1","title":"Security update for the Linux Kernel","description":"\nThe SUSE Linux Enterprise 15 SP2 LTSS kernel was updated to receive various security and bugfixes.\n\n\nThe following security bugs were fixed:\n\n- CVE-2023-1637: Fixed vulnerability that could lead to unauthorized access to CPU memory after resuming CPU from suspend-to-RAM (bsc#1209779).\n- CVE-2022-3566: Fixed race condition in the TCP Handler (bsc#1204405).\n- CVE-2021-29650: Fixed an issue where the netfilter subsystem allowed attackers to cause a denial of service (bsc#1184208).\n- CVE-2020-36694: Fixed an use-after-free issue in netfilter in the packet processing context (bsc#1211596).\n- CVE-2023-1079: Fixed a use-after-free problem that could have been triggered in asus_kbd_backlight_set when plugging/disconnecting a malicious USB device (bsc#1208604).\n- CVE-2023-33288: Fixed a use-after-free in bq24190_remove in drivers/power/supply/bq24190_charger.c (bsc#1211590).\n- CVE-2022-45886: Fixed a .disconnect versus dvb_device_open race condition in dvb_net.c that lead to a use-after-free (bsc#1205760).\n- CVE-2022-45885: Fixed a race condition in dvb_frontend.c that could cause a use-after-free when a device is disconnected (bsc#1205758).\n- CVE-2022-45887: Fixed a memory leak in ttusb_dec.c caused by the lack of a dvb_frontend_detach call (bsc#1205762).\n- CVE-2022-45919: Fixed a use-after-free in dvb_ca_en50221.c that could occur if there is a disconnect after an open, because of the lack of a wait_event (bsc#1205803).\n- CVE-2022-45884: Fixed a use-after-free in dvbdev.c, related to dvb_register_device dynamically allocating fops (bsc#1205756).\n- CVE-2023-31084: Fixed a blocking issue in drivers/media/dvb-core/dvb_frontend.c (bsc#1210783).\n- CVE-2023-31436: Fixed an out-of-bounds write in qfq_change_class() because lmax can exceed QFQ_MIN_LMAX (bsc#1210940 bsc#1211260).\n- CVE-2023-2194: Fixed an out-of-bounds write vulnerability in the SLIMpro I2C device driver (bsc#1210715).\n- CVE-2023-32269: Fixed a use-after-free in af_netrom.c, related to the fact that accept() was also allowed for a successfully connected AF_NETROM socket (bsc#1211186).\n- CVE-2023-32233: Fixed a use-after-free in Netfilter nf_tables when processing batch requests (bsc#1211043).\n- CVE-2022-4269: Fixed a flaw was found inside the Traffic Control (TC) subsystem (bsc#1206024).\n- CVE-2023-1380: Fixed a slab-out-of-bound read problem in brcmf_get_assoc_ies() (bsc#1209287).\n- CVE-2023-2513: Fixed a use-after-free vulnerability in the ext4 filesystem (bsc#1211105).\n- CVE-2023-2483: Fixed a use after free bug in emac_remove caused by a race condition (bsc#1211037).\n- CVE-2023-23586: Fixed a memory information leak in the io_uring subsystem (bsc#1208474).\n- CVE-2023-2124: Fixed an out of bound access in the XFS subsystem that could have lead to denial-of-service or potentially privilege escalation (bsc#1210498).\n\nThe following non-security bugs were fixed:\n\n- Drivers: hv: vmbus: Optimize vmbus_on_event (bsc#1211622).\n- Fix usrmerge error (boo#1211796)\n- ipv6: sr: fix out-of-bounds read when setting HMAC data (bsc#1211592).\n- kernel-binary: install expoline.o (boo#1210791 bsc#1211089)\n- kernel-source: Remove unused macro variant_symbols\n- kernel-spec-macros: Fix up obsolete_rebuilds_subpackage to generate obsoletes correctly (boo#1172073 bsc#1191731).\n- rpm/constraints.in: Increase disk size constraint for riscv64 to 52GB\n- rpm/kernel-binary.spec.in: Fix missing kernel-preempt-devel and KMP Provides (bsc#1199046)\n- scsi: storvsc: Parameterize number hardware queues (bsc#1211622).\n- usrmerge: Compatibility with earlier rpm (boo#1211796)\n","status":"published","published":"2023-06-27T10:05:16Z","modified":"2026-02-04T02:34:47.910292Z","updated_at":"2026-11-02T15:53:53.019382Z"}]}}