CVE-2021-3923 – kernel: stack information leak in infiniband RDMA
https://notcve.org/view.php?id=CVE-2021-3923
A flaw was found in the Linux kernel's implementation of RDMA over infiniband. An attacker with a privileged local account can leak kernel stack information when issuing commands to the /dev/infiniband/rdma_cm device node. While this access is unlikely to leak sensitive user information, it can be further used to defeat existing kernel protection mechanisms. A flaw was found in the Linux kernel's implementation of RDMA over infiniband. An attacker with a privileged local account can leak kernel stack information when issuing commands to the /dev/infiniband/rdma_cm device node. • https://bugzilla.redhat.com/show_bug.cgi?id=2019643 https://lore.kernel.org/all/20220204100036.GA12348%40kili https://access.redhat.com/security/cve/CVE-2021-3923 • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor •
CVE-2023-1077
https://notcve.org/view.php?id=CVE-2023-1077
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. • https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=7c4a5b89a0b5a57a64b601775b296abf77a9fe97 https://lists.debian.org/debian-lts-announce/2023/05/msg00005.html https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html https://security.netapp.com/advisory/ntap-20230511-0002 • CWE-843: Access of Resource Using Incompatible Type ('Type Confusion') •
CVE-2023-1195 – kernel: use-after-free caused by invalid pointer hostname in fs/cifs/connect.c
https://notcve.org/view.php?id=CVE-2023-1195
A use-after-free flaw was found in reconn_set_ipaddr_from_hostname in fs/cifs/connect.c in the Linux kernel. The issue occurs when it forgets to set the free pointer server->hostname to NULL, leading to an invalid pointer request. • https://github.com/torvalds/linux/commit/153695d36ead0ccc4d0256953c751cabf673e621 https://access.redhat.com/security/cve/CVE-2023-1195 https://bugzilla.redhat.com/show_bug.cgi?id=2154171 • CWE-416: Use After Free •
CVE-2020-36691
https://notcve.org/view.php?id=CVE-2020-36691
An issue was discovered in the Linux kernel before 5.8. lib/nlattr.c allows attackers to cause a denial of service (unbounded recursion) via a nested Netlink policy with a back reference. • https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.8 https://github.com/torvalds/linux/commit/7690aa1cdf7c4565ad6b013b324c28b685505e24 • CWE-674: Uncontrolled Recursion •
CVE-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 •