CVSS: 9.8EPSS: 6%CPEs: 8EXPL: 0CVE-2023-32254 – Tree connection race condition remote code execution vulnerability
https://notcve.org/view.php?id=CVE-2023-32254
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 processing of SMB2_TREE_DISCONNECT commands. The issue results from the lack of proper locking when performing operations on an object. An attacker can leverage this vulnerability to execute code in the context of the kernel. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Linux Kernel. • https://access.redhat.com/security/cve/CVE-2023-32254 • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') •
CVSS: 8.1EPSS: 8%CPEs: 8EXPL: 0CVE-2023-32257 – Session race condition remote code execution vulnerability
https://notcve.org/view.php?id=CVE-2023-32257
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 processing of SMB2_SESSION_SETUP and SMB2_LOGOFF commands. The issue results from the lack of proper locking when performing operations on an object. An attacker can leverage this vulnerability to execute code in the context of the kernel. Se encontró una falla en el ksmbd del kernel de Linux, un servidor SMB de alto rendimiento en el kernel. • https://access.redhat.com/security/cve/CVE-2023-32257 • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') CWE-667: Improper Locking •
CVSS: 6.7EPSS: 0%CPEs: 7EXPL: 0CVE-2023-0459 – Copy_from_user Spectre-V1 Gadget in Linux Kernel
https://notcve.org/view.php?id=CVE-2023-0459
16 May 2023 — Copy_from_user on 64-bit versions of the Linux kernel does not implement the __uaccess_begin_nospec allowing a user to bypass the "access_ok" check and pass a kernel pointer to copy_from_user(). This would allow an attacker to leak information. We recommend upgrading beyond commit 74e19ef0ff8061ef55957c3abd71614ef0f42f47 A vulnerability was found in copy_from_user in 64-bit versions of the Linux kernel. This flaw allows a local attacker to bypass the "access_ok" sanity check and pass a kernel pointer to cop... • https://github.com/torvalds/linux/commit/4b842e4e25b12951fa10dedb4bc16bc47e3b850c • CWE-402: Transmission of Private Resources into a New Sphere ('Resource Leak') CWE-763: Release of Invalid Pointer or Reference •
CVSS: 7.8EPSS: 0%CPEs: 13EXPL: 1CVE-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 •
CVSS: 7.8EPSS: 0%CPEs: 16EXPL: 5CVE-2023-32233 – kernel: netfilter: use-after-free in nf_tables when processing batch requests can lead to privilege escalation
https://notcve.org/view.php?id=CVE-2023-32233
08 May 2023 — In the Linux kernel through 6.3.1, a use-after-free in Netfilter nf_tables when processing batch requests can be abused to perform arbitrary read and write operations on kernel memory. Unprivileged local users can obtain root privileges. This occurs because anonymous sets are mishandled. A use-after-free vulnerability was found in the Netfilter subsystem of the Linux kernel when processing batch requests to update nf_tables configuration. This vulnerability can be abused to perform arbitrary reads and write... • https://github.com/oferchen/POC-CVE-2023-32233 • CWE-416: Use After Free •
CVSS: 4.7EPSS: 0%CPEs: 7EXPL: 0CVE-2023-1859 – Ubuntu Security Notice USN-6072-1
https://notcve.org/view.php?id=CVE-2023-1859
05 May 2023 — A use-after-free flaw was found in xen_9pfs_front_removet in net/9p/trans_xen.c in Xen transport for 9pfs in the Linux Kernel. This flaw could allow a local attacker to crash the system due to a race problem, possibly leading to a kernel information leak. Patryk Sondej and Piotr Krysiuk discovered that a race condition existed in the netfilter subsystem of the Linux kernel when processing batch requests, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service ... • https://lore.kernel.org/all/20230313090002.3308025-1-zyytlz.wz%40163.com • CWE-416: Use After Free •
CVSS: 7.8EPSS: 29%CPEs: 8EXPL: 0CVE-2023-2156 – Linux Kernel IPv6 RPL Protocol Reachable Assertion Denial-of-Service Vulnerability
https://notcve.org/view.php?id=CVE-2023-2156
04 May 2023 — A flaw was found in the networking subsystem of the Linux kernel within the handling of the RPL protocol. This issue results from the lack of proper handling of user-supplied data, which can lead to an assertion failure. This may allow an unauthenticated remote attacker 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. Authentication is not required to exploit this vulnerability... • http://www.openwall.com/lists/oss-security/2023/05/17/8 • CWE-617: Reachable Assertion •
CVSS: 7.8EPSS: 0%CPEs: 3EXPL: 0CVE-2023-2235 – Use-after-free in Linux kernel's Performance Events subsystem
https://notcve.org/view.php?id=CVE-2023-2235
01 May 2023 — A use-after-free vulnerability in the Linux Kernel Performance Events system can be exploited to achieve local privilege escalation. The perf_group_detach function did not check the event's siblings' attach_state before calling add_event_to_groups(), but remove_on_exec made it possible to call list_del_event() on before detaching from their group, making it possible to use a dangling pointer causing a use-after-free vulnerability. We recommend upgrading past commit fd0815f632c24878e325821943edccc7fde947a2. ... • https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=fd0815f632c24878e325821943edccc7fde947a2 • CWE-416: Use After Free •
CVSS: 8.2EPSS: 0%CPEs: 7EXPL: 0CVE-2023-31436 – Linux Kernel Net Scheduler Out-Of-Bounds Access Local Privilege Escalation Vulnerability
https://notcve.org/view.php?id=CVE-2023-31436
28 Apr 2023 — qfq_change_class in net/sched/sch_qfq.c in the Linux kernel before 6.2.13 allows an out-of-bounds write because lmax can exceed QFQ_MIN_LMAX. An out-of-bounds memory access flaw was found in the Linux kernel’s traffic control (QoS) subsystem in how a user triggers the qfq_change_class function with an incorrect MTU value of the network device used as lmax. This flaw allows a local user to crash or potentially escalate their privileges on the system. This vulnerability allows local attackers to escalate priv... • http://packetstormsecurity.com/files/173087/Kernel-Live-Patch-Security-Notice-LSN-0095-1.html • CWE-787: Out-of-bounds Write •
CVSS: 5.3EPSS: 0%CPEs: 6EXPL: 0CVE-2023-0458 – Spectre V1 Gadget in do_prlimit in the Linux Kernel
https://notcve.org/view.php?id=CVE-2023-0458
26 Apr 2023 — A speculative pointer dereference problem exists in the Linux Kernel on the do_prlimit() function. The resource argument value is controlled and is used in pointer arithmetic for the 'rlim' variable and can be used to leak the contents. We recommend upgrading past version 6.1.8 or commit 739790605705ddcf18f21782b9c99ad7d53a8c11 A vulnerabilty was found in Linux Kernel, where a speculative pointer dereference problem exists in the Linux Kernel on the do_prlimit() function. The resource argument value is cont... • https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/diff/kernel/sys.c?id=v6.1.8&id2=v6.1.7 • CWE-476: NULL Pointer Dereference •