
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-2023-32254 – 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') •

CVE-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 •

CVE-2023-32258 – Session race condition remote code execution vulnerability
https://notcve.org/view.php?id=CVE-2023-32258
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_LOGOFF and SMB2_CLOSE 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-2023-32258 • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') CWE-667: Improper Locking •

CVE-2023-33951 – Kernel: vmwgfx: race condition leading to information disclosure vulnerability
https://notcve.org/view.php?id=CVE-2023-33951
17 May 2023 — A race condition vulnerability was found in the vmwgfx driver in the Linux kernel. The flaw exists within the handling of GEM objects. The issue results from improper locking when performing operations on an object. This flaw allows a local privileged user to disclose information in the context of the kernel. This vulnerability allows local attackers to disclose sensitive information on affected installations of Linux Kernel. • https://access.redhat.com/errata/RHSA-2023:6583 • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') CWE-667: Improper Locking •

CVE-2023-33952 – Kernel: vmwgfx: double free within the handling of vmw_buffer_object objects
https://notcve.org/view.php?id=CVE-2023-33952
17 May 2023 — A double-free vulnerability was found in handling vmw_buffer_object objects in the vmwgfx driver in the Linux kernel. This issue occurs due to the lack of validating the existence of an object prior to performing further free operations on the object, which may allow a local privileged user to escalate privileges and execute code in the context of the kernel. This vulnerability allows local attackers to escalate privileges on affected installations of Linux Kernel. An attacker must first obtain the ability ... • https://access.redhat.com/errata/RHSA-2023:6583 • CWE-415: Double Free •

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-2023-32233 – 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 •

CVE-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 •

CVE-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. A flaw was found in the Linux kernel's networking subsystem within the RPL protocol's handling. This issue results from the improper handling of user-supplied data, which can lead to an ... • http://www.openwall.com/lists/oss-security/2023/05/17/8 • CWE-617: Reachable Assertion •