CVSS: 5.5EPSS: 0%CPEs: 2EXPL: 0CVE-2023-1583
https://notcve.org/view.php?id=CVE-2023-1583
A NULL pointer dereference was found in io_file_bitmap_get in io_uring/filetable.c in the io_uring sub-component in the Linux Kernel. When fixed files are unregistered, some context information (file_alloc_{start,end} and alloc_hint) is not cleared. A subsequent request that has auto index selection enabled via IORING_FILE_INDEX_ALLOC can cause a NULL pointer dereference. An unprivileged user can use the flaw to cause a system crash. • https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=02a4d923e4400a36d340ea12d8058f69ebf3a383 https://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux-block.git/commit/?h=io_uring-6.3&id=761efd55a0227aca3a69deacdaa112fffd44fe37 • CWE-476: NULL Pointer Dereference •
CVSS: 3.3EPSS: 0%CPEs: 5EXPL: 0CVE-2023-1513 – kernel: KVM: information leak in KVM_GET_DEBUGREGS ioctl on 32-bit systems
https://notcve.org/view.php?id=CVE-2023-1513
A flaw was found in KVM. When calling the KVM_GET_DEBUGREGS ioctl, on 32-bit systems, there might be some uninitialized portions of the kvm_debugregs structure that could be copied to userspace, causing an information leak. • https://bugzilla.redhat.com/show_bug.cgi?id=2179892 https://github.com/torvalds/linux/commit/2c10b61421a28e95a46ab489fd56c0f442ff6952 https://lists.debian.org/debian-lts-announce/2023/05/msg00005.html https://lists.debian.org/debian-lts-announce/2023/05/msg00006.html https://lore.kernel.org/kvm/20230214103304.3689213-1-gregkh%40linuxfoundation.org https://access.redhat.com/security/cve/CVE-2023-1513 • CWE-665: Improper Initialization •
CVSS: 7.8EPSS: 0%CPEs: 11EXPL: 0CVE-2023-1281 – UAF in Linux kernel's tcindex (traffic control index filter) implementation
https://notcve.org/view.php?id=CVE-2023-1281
Use After Free vulnerability in Linux kernel traffic control index filter (tcindex) allows Privilege Escalation. The imperfect hash area can be updated while packets are traversing, which will cause a use-after-free when 'tcf_exts_exec()' is called with the destroyed tcf_ext. A local attacker user can use this vulnerability to elevate its privileges to root. This issue affects Linux Kernel: from 4.14 before git commit ee059170b1f7e94e55fa6cadee544e176a6e59c2. A use-after-free vulnerability was found in the traffic control index filter (tcindex) in the Linux kernel. The imperfect hash area can be updated while packets are traversing. • http://www.openwall.com/lists/oss-security/2023/04/11/3 https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ee059170b1f7e94e55fa6cadee544e176a6e59c2 https://kernel.dance/#ee059170b1f7e94e55fa6cadee544e176a6e59c2 https://lists.debian.org/debian-lts-announce/2023/05/msg00005.html https://lists.debian.org/debian-lts-announce/2023/05/msg00006.html https://security.netapp.com/advisory/ntap-20230427-0004 https://access.redhat.com/security/cve/CVE-2023-1281 https://bugzilla.r • CWE-416: Use After Free •
CVSS: 7.8EPSS: 0%CPEs: 7EXPL: 10CVE-2023-0386 – kernel: FUSE filesystem low-privileged user privileges escalation
https://notcve.org/view.php?id=CVE-2023-0386
A flaw was found in the Linux kernel, where unauthorized access to the execution of the setuid file with capabilities was found in the Linux kernel’s OverlayFS subsystem in how a user copies a capable file from a nosuid mount into another mount. This uid mapping bug allows a local user to escalate their privileges on the system. • https://github.com/sxlmnwb/CVE-2023-0386 https://github.com/xkaneiki/CVE-2023-0386 https://github.com/chenaotian/CVE-2023-0386 https://github.com/Fanxiaoyao66/CVE-2023-0386 https://github.com/veritas501/CVE-2023-0386 https://github.com/3yujw7njai/CVE-2023-0386 https://github.com/puckiestyle/CVE-2023-0386 https://github.com/churamanib/CVE-2023-0386 https://github.com/letsr00t/CVE-2023-0386 https://github.com/EstamelGG/CVE-2023-0386-libs http://packetstormsecurity.com/fi • CWE-282: Improper Ownership Management •
CVSS: 7.8EPSS: 0%CPEs: 3EXPL: 0CVE-2023-1252 – kernel: ovl: fix use after free in struct ovl_aio_req
https://notcve.org/view.php?id=CVE-2023-1252
A use-after-free flaw was found in the Linux kernel’s Ext4 File System in how a user triggers several file operations simultaneously with the overlay FS usage. This flaw allows a local user to crash or potentially escalate their privileges on the system. Only if patch 9a2544037600 ("ovl: fix use after free in struct ovl_aio_req") not applied yet, the kernel could be affected. • https://lore.kernel.org/lkml/20211115165433.449951285%40linuxfoundation.org https://security.netapp.com/advisory/ntap-20230505-0005 https://access.redhat.com/security/cve/CVE-2023-1252 https://bugzilla.redhat.com/show_bug.cgi?id=2176140 • CWE-416: Use After Free •