
CVE-2023-32248 – Tree connection null pointer dereference denial-of-service vulnerability
https://notcve.org/view.php?id=CVE-2023-32248
17 May 2023 — A flaw was found in the Linux kernel's ksmbd, a high-performance in-kernel SMB server. The specific flaw exists within the handling of SMB2_TREE_CONNECT and SMB2_QUERY_INFO commands. The issue results from the lack of proper validation of a pointer prior to accessing it. An attacker can leverage this vulnerability to create a denial-of-service condition on the system. Se ha encontrado un fallo en el ksmbd del kernel de Linux, un servidor SMB de alto rendimiento integrado en el kernel. • https://access.redhat.com/security/cve/CVE-2023-32248 • CWE-476: NULL Pointer Dereference •

CVE-2023-32252 – Session null pointer dereference denial-of-service vulnerability
https://notcve.org/view.php?id=CVE-2023-32252
17 May 2023 — A flaw was found in the Linux kernel's ksmbd, a high-performance in-kernel SMB server. The specific flaw exists within the handling of SMB2_LOGOFF commands. The issue results from the lack of proper validation of a pointer prior to accessing it. An attacker can leverage this vulnerability to create a denial-of-service condition on the system. This vulnerability allows remote attackers to create a denial-of-service condition on affected installations of Linux Kernel. • https://access.redhat.com/security/cve/CVE-2023-32252 • CWE-476: NULL Pointer Dereference •

CVE-2023-2124 – kernel: OOB access in the Linux kernel's XFS subsystem
https://notcve.org/view.php?id=CVE-2023-2124
15 May 2023 — An out-of-bounds memory access flaw was found in the Linux kernel’s XFS file system in how a user restores an XFS image after failure (with a dirty log journal). This flaw allows a local user to crash or potentially escalate their privileges on the system. It was discovered that the XFS file system implementation in the Linux kernel did not properly perform metadata validation when mounting certain images. An attacker could use this to specially craft a file system image that, when mounted, could cause a de... • https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/fs/xfs/xfs_buf_item_recover.c?h=v6.4-rc1&id=22ed903eee23a5b174e240f1cdfa9acf393a5210 • CWE-125: Out-of-bounds Read CWE-787: Out-of-bounds Write •

CVE-2023-2269 – kernel: A possible deadlock in dm_get_inactive_table in dm- ioctl.c leads to dos
https://notcve.org/view.php?id=CVE-2023-2269
25 Apr 2023 — A denial of service problem was found, due to a possible recursive locking scenario, resulting in a deadlock in table_clear in drivers/md/dm-ioctl.c in the Linux Kernel Device Mapper-Multipathing sub-component. A flaw was found in the Linux Kernel, leading to a denial of service. This issue occurs due to a possible recursive locking scenario, resulting in a deadlock in table_clear in drivers/md/dm-ioctl.c in the Linux Kernel Device Mapper-Multipathing sub-component. Gwangun Jung discovered that the Quick Fa... • https://lists.debian.org/debian-lts-announce/2023/07/msg00030.html • CWE-413: Improper Resource Locking CWE-667: Improper Locking •

CVE-2023-31084 – kernel: blocking operation in dvb_frontend_get_event and wait_event_interruptible
https://notcve.org/view.php?id=CVE-2023-31084
24 Apr 2023 — An issue was discovered in drivers/media/dvb-core/dvb_frontend.c in the Linux kernel 6.2. There is a blocking operation when a task is in !TASK_RUNNING. In dvb_frontend_get_event, wait_event_interruptible is called; the condition is dvb_frontend_test_event(fepriv,events). In dvb_frontend_test_event, down(&fepriv->sem) is called. • https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b8c75e4a1b325ea0a9433fa8834be97b5836b946 • CWE-833: Deadlock •

CVE-2023-2007 – Linux Kernel DPT I2O Controller Time-Of-Check Time-Of-Use Information Disclosure Vulnerability
https://notcve.org/view.php?id=CVE-2023-2007
13 Apr 2023 — The specific flaw exists within the DPT I2O Controller driver. The issue results from the lack of proper locking when performing operations on an object. An attacker can leverage this in conjunction with other vulnerabilities to escalate privileges and execute arbitrary code in the context of the kernel. This vulnerability allows local attackers to disclose sensitive information on affected installations of Linux Kernel. An attacker must first obtain the ability to execute high-privileged code on the target... • https://github.com/torvalds/linux/commit/b04e75a4a8a81887386a0d2dbf605a48e779d2a0 • CWE-367: Time-of-check Time-of-use (TOCTOU) Race Condition CWE-667: Improper Locking •

CVE-2023-1989 – kernel: Use after free bug in btsdio_remove due to race condition
https://notcve.org/view.php?id=CVE-2023-1989
11 Apr 2023 — A use-after-free flaw was found in btsdio_remove in drivers\bluetooth\btsdio.c in the Linux Kernel. In this flaw, a call to btsdio_remove with an unfinished job, may cause a race problem leading to a UAF on hdev devices. A use-after-free flaw was found in btsdio_remove in drivers\bluetooth\btsdio.c in the Linux Kernel. A call to btsdio_remove with an unfinished job may cause a race problem which leads to a UAF on hdev devices. It was discovered that the Traffic-Control Index implementation in the Linux kern... • https://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next.git/commit/?id=f132c2d13088 • CWE-416: Use After Free •

CVE-2023-1838 – kernel: Possible use-after-free since the two fdget() during vhost_net_set_backend()
https://notcve.org/view.php?id=CVE-2023-1838
05 Apr 2023 — A use-after-free flaw was found in vhost_net_set_backend in drivers/vhost/net.c in virtio network subcomponent in the Linux kernel due to a double fget. This flaw could allow a local attacker to crash the system, and could even lead to a kernel information leak problem. A use-after-free flaw was found in vhost_net_set_backend in drivers/vhost/net.c in the virtio network subcomponent in the Linux kernel due to a double fget. This issue could allow a local attacker to crash the system, and could lead to a ker... • https://lore.kernel.org/netdev/20220516084213.26854-1-jasowang%40redhat.com/T • CWE-416: Use After Free •

CVE-2023-28464 – Kernel: double free in hci_conn_cleanup of the bluetooth subsystem
https://notcve.org/view.php?id=CVE-2023-28464
31 Mar 2023 — hci_conn_cleanup in net/bluetooth/hci_conn.c in the Linux kernel through 6.2.9 has a use-after-free (observed in hci_conn_hash_flush) because of calls to hci_dev_put and hci_conn_put. There is a double free that may lead to privilege escalation. A double-free vulnerability was found in the hci_conn_cleanup in net/bluetooth/hci_conn.c in the Linux Kernel. This issue may cause a denial of service or privilege escalation. • https://lore.kernel.org/lkml/20230309074645.74309-1-wzhmmmmm%40gmail.com • CWE-415: Double Free •

CVE-2023-1077 – Ubuntu Security Notice USN-6256-1
https://notcve.org/view.php?id=CVE-2023-1077
27 Mar 2023 — In the Linux kernel, pick_next_rt_entity() may return a type confused entry, not detected by the BUG_ON condition, as the confused entry will not be NULL, but list_head.The buggy error condition would lead to a type confused entry with the list head,which would then be used as a type confused sched_rt_entity,causing memory corruption. 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 pos... • https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=7c4a5b89a0b5a57a64b601775b296abf77a9fe97 • CWE-843: Access of Resource Using Incompatible Type ('Type Confusion') •