CVSS: 7.8EPSS: 0%CPEs: 1EXPL: 0CVE-2023-0240 – Use after free in io_uring in the Linux Kernel
https://notcve.org/view.php?id=CVE-2023-0240
30 Jan 2023 — There is a logic error in io_uring'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 ver... • https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/io_uring?h=linux-5.10.y&id=788d0824269bef539fe31a785b1517882eafed93 • CWE-416: Use After Free •
CVSS: 4.7EPSS: 0%CPEs: 8EXPL: 1CVE-2023-0468 – Ubuntu Security Notice USN-6072-1
https://notcve.org/view.php?id=CVE-2023-0468
25 Jan 2023 — A use-after-free flaw was found in io_uring/poll.c in io_poll_check_events in the io_uring subcomponent in the Linux Kernel due to a race condition of poll_refs. This flaw may cause a NULL pointer dereference. Se encontró una falla de use-after-free en io_uring/poll.c en io_poll_check_events en el subcomponente io_uring en el kernel de Linux debido a una condición de ejecución de poll_refs. Este defecto puede provocar una desreferencia del puntero NULL. It was discovered that the Upper Level Protocol subsys... • https://bugzilla.redhat.com/show_bug.cgi?id=2164024 • CWE-416: Use After Free •
CVSS: 5.5EPSS: 0%CPEs: 8EXPL: 1CVE-2023-0469 – Ubuntu Security Notice USN-5914-1
https://notcve.org/view.php?id=CVE-2023-0469
25 Jan 2023 — A use-after-free flaw was found in io_uring/filetable.c in io_install_fixed_file in the io_uring subcomponent in the Linux Kernel during call cleanup. This flaw may lead to a denial of service. Se encontró una falla de use-after-free en io_uring/filetable.c en io_install_fixed_file en el subcomponente io_uring en el kernel de Linux durante la limpieza de llamadas. Este defecto puede dar lugar a una denegación de servicio. It was discovered that the Upper Level Protocol subsystem in the Linux kernel did not ... • https://bugzilla.redhat.com/show_bug.cgi?id=2163723 • CWE-191: Integer Underflow (Wrap or Wraparound) CWE-416: Use After Free •
CVSS: 6.5EPSS: 0%CPEs: 4EXPL: 0CVE-2023-0394 – kernel: NULL pointer dereference in rawv6_push_pending_frames
https://notcve.org/view.php?id=CVE-2023-0394
24 Jan 2023 — A NULL pointer dereference flaw was found in rawv6_push_pending_frames in net/ipv6/raw.c in the network subcomponent in the Linux kernel. This flaw causes the system to crash. It was discovered that the Upper Level Protocol subsystem in the Linux kernel did not properly handle sockets entering the LISTEN state in certain protocols, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. It was discovered that the KVM VMX imp... • https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=cb3e9864cdbe35ff6378966660edbcbac955fe17 • CWE-476: NULL Pointer Dereference •
CVSS: 7.1EPSS: 0%CPEs: 12EXPL: 0CVE-2022-41858 – kernel: null-ptr-deref vulnerabilities in sl_tx_timeout in drivers/net/slip
https://notcve.org/view.php?id=CVE-2022-41858
17 Jan 2023 — A flaw was found in the Linux kernel. A NULL pointer dereference may occur while a slip driver is in progress to detach in sl_tx_timeout in drivers/net/slip/slip.c. This issue could allow an attacker to crash the system or leak internal kernel information. Kirill Tkhai discovered that the XFS file system implementation in the Linux kernel did not calculate size correctly when pre-allocating space in some situations. A local attacker could use this to expose sensitive information. • https://github.com/torvalds/linux/commit/ec4eb8a86ade4d22633e1da2a7d85a846b7d1798 • CWE-416: Use After Free CWE-476: NULL Pointer Dereference •
CVSS: 5.5EPSS: 0%CPEs: 2EXPL: 1CVE-2022-47929 – kernel: NULL pointer dereference in traffic control subsystem
https://notcve.org/view.php?id=CVE-2022-47929
17 Jan 2023 — In the Linux kernel before 6.1.6, a NULL pointer dereference bug in the traffic control subsystem allows an unprivileged user to trigger a denial of service (system crash) via a crafted traffic control configuration that is set up with "tc qdisc" and "tc class" commands. This affects qdisc_graft in net/sched/sch_api.c. A NULL pointer dereference flaw was found in qdisc_graft in net/sched/sch_api.c in the Linux kernel. This issue may allow a local unprivileged user to trigger a denial of service if the alloc... • https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.6 • CWE-476: NULL Pointer Dereference •
CVSS: 7.8EPSS: 0%CPEs: 12EXPL: 0CVE-2023-23559 – Ubuntu Security Notice USN-5924-1
https://notcve.org/view.php?id=CVE-2023-23559
13 Jan 2023 — In rndis_query_oid in drivers/net/wireless/rndis_wlan.c in the Linux kernel through 6.1.5, there is an integer overflow in an addition. En rndis_query_oid en drivers/net/wireless/rndis_wlan.c en el kernel de Linux hasta 6.1.5, hay un desbordamiento de enteros en una suma. It was discovered that the network queuing discipline implementation in the Linux kernel contained a use-after-free vulnerability. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. It was disc... • https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b870e73a56c4cccbec33224233eaf295839f228c • CWE-190: Integer Overflow or Wraparound •
CVSS: 5.5EPSS: 0%CPEs: 2EXPL: 0CVE-2023-23454 – kernel: slab-out-of-bounds read vulnerabilities in cbq_classify
https://notcve.org/view.php?id=CVE-2023-23454
12 Jan 2023 — cbq_classify in net/sched/sch_cbq.c in the Linux kernel through 6.1.4 allows attackers to cause a denial of service (slab-out-of-bounds read) because of type confusion (non-negative numbers can sometimes indicate a TC_ACT_SHOT condition rather than valid classification results). An out-of-bounds (OOB) read problem was found in cbq_classify in net/sched/sch_cbq.c in the Linux kernel. This issue may allow a local attacker to cause a denial of service due to type confusion. Non-negative numbers could indicate ... • https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=caa4b35b4317d5147b3ab0fbdc9c075c7d2e9c12 • CWE-125: Out-of-bounds Read CWE-843: Access of Resource Using Incompatible Type ('Type Confusion') •
CVSS: 5.5EPSS: 0%CPEs: 2EXPL: 0CVE-2023-23455 – Kernel: denial of service in atm_tc_enqueue in net/sched/sch_atm.c due to type confusion
https://notcve.org/view.php?id=CVE-2023-23455
12 Jan 2023 — atm_tc_enqueue in net/sched/sch_atm.c in the Linux kernel through 6.1.4 allows attackers to cause a denial of service because of type confusion (non-negative numbers can sometimes indicate a TC_ACT_SHOT condition rather than valid classification results). A denial of service flaw was found in atm_tc_enqueue in net/sched/sch_atm.c in the Linux kernel. This issue may allow a local attacker to cause a denial of service due to type confusion. Non-negative numbers could indicate a TC_ACT_SHOT condition rather th... • https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=a2965c7be0522eaa18808684b7b82b248515511b • CWE-843: Access of Resource Using Incompatible Type ('Type Confusion') •
CVSS: 7.8EPSS: 0%CPEs: 10EXPL: 0CVE-2022-4095 – Ubuntu Security Notice USN-5791-3
https://notcve.org/view.php?id=CVE-2022-4095
09 Jan 2023 — A use-after-free flaw was found in Linux kernel before 5.19.2. This issue occurs in cmd_hdl_filter in drivers/staging/rtl8712/rtl8712_cmd.c, allowing an attacker to launch a local denial of service attack and gain escalation of privileges. It was discovered that the Traffic-Control Index implementation in the Linux kernel did not properly perform filter deactivation in some situations. A local attacker could possibly use this to gain elevated privileges. Please note that with the fix for this CVE, kernel su... • https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c53b3dcb9942b8ed7f81ee3921c4085d87070c73 • CWE-416: Use After Free •