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-2023-1513 – 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 •
CVE-2023-1249 – kernel: missing mmap_lock in file_files_note that could possibly lead to a use after free in the coredump code
https://notcve.org/view.php?id=CVE-2023-1249
A use-after-free flaw was found in the Linux kernel’s core dump subsystem. This flaw allows a local user to crash the system. Only if patch 390031c94211 ("coredump: Use the vma snapshot in fill_files_note") not applied yet, then kernel could be affected. • http://packetstormsecurity.com/files/171912/CentOS-Stream-9-Missing-Kernel-Security-Fix.html https://patchwork.kernel.org/project/linux-fsdevel/patch/87iltzn3nd.fsf_-_%40email.froward.int.ebiederm.org https://access.redhat.com/security/cve/CVE-2023-1249 https://bugzilla.redhat.com/show_bug.cgi?id=2169719 • CWE-416: Use After Free •