CVSS: 7.8EPSS: 0%CPEs: 12EXPL: 9CVE-2024-1086 – Linux Kernel Use-After-Free Vulnerability
https://notcve.org/view.php?id=CVE-2024-1086
A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to achieve local privilege escalation. The nft_verdict_init() function allows positive values as drop error within the hook verdict, and hence the nf_hook_slow() function can cause a double free vulnerability when NF_DROP is issued with a drop error which resembles NF_ACCEPT. We recommend upgrading past commit f342de4e2f33e0e39165d8639387aa6c19dff660. Una vulnerabilidad de use after free en el componente netfilter: nf_tables del kernel de Linux puede explotarse para lograr una escalada de privilegios local. La función nft_verdict_init() permite valores positivos como error de eliminación dentro del veredicto del gancho y, por lo tanto, la función nf_hook_slow() puede causar una vulnerabilidad double free cuando NF_DROP se emite con un error de eliminación similar a NF_ACCEPT. Recomendamos actualizar después del compromiso f342de4e2f33e0e39165d8639387aa6c19dff660. A flaw was found in the Netfilter subsystem in the Linux kernel. • https://github.com/Notselwyn/CVE-2024-1086 https://github.com/feely666/CVE-2024-1086 https://github.com/CCIEVoice2009/CVE-2024-1086 https://github.com/pl0xe/CVE-2024-1086 https://github.com/xzx482/CVE-2024-1086 https://github.com/kevcooper/CVE-2024-1086-checker http://www.openwall.com/lists/oss-security/2024/04/10/22 http://www.openwall.com/lists/oss-security/2024/04/10/23 http://www.openwall.com/lists/oss-security/2024/04/14/1 http://www.openwall.co • CWE-416: Use After Free •
CVSS: 6.5EPSS: 0%CPEs: 3EXPL: 1CVE-2024-0564 – Kernel: max page sharing of kernel samepage merging (ksm) may cause memory deduplication
https://notcve.org/view.php?id=CVE-2024-0564
A flaw was found in the Linux kernel's memory deduplication mechanism. The max page sharing of Kernel Samepage Merging (KSM), added in Linux kernel version 4.4.0-96.119, can create a side channel. When the attacker and the victim share the same host and the default setting of KSM is "max page sharing=256", it is possible for the attacker to time the unmap to merge with the victim's page. The unmapping time depends on whether it merges with the victim's page and additional physical pages are created beyond the KSM's "max page share". Through these operations, the attacker can leak the victim's page. • https://access.redhat.com/security/cve/CVE-2024-0564 https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1680513 https://bugzilla.redhat.com/show_bug.cgi?id=2258514 https://link.springer.com/conference/wisa https://wisa.or.kr/accepted • CWE-203: Observable Discrepancy •
CVSS: 7.8EPSS: 0%CPEs: 3EXPL: 0CVE-2024-0841 – Kernel: hugetlbfs: null pointer dereference in hugetlbfs_fill_super function
https://notcve.org/view.php?id=CVE-2024-0841
A null pointer dereference flaw was found in the hugetlbfs_fill_super function in the Linux kernel hugetlbfs (HugeTLB pages) functionality. This issue may allow a local user to crash the system or potentially escalate their privileges on the system. Se encontró un fallo de desreferencia de puntero null en la función Hugetlbfs_fill_super en la funcionalidad Hugetlbfs (páginas HugeTLB) del kernel de Linux. Este problema puede permitir que un usuario local bloquee el sistema o potencialmente aumente sus privilegios en el sistema. • https://access.redhat.com/errata/RHSA-2024:2394 https://access.redhat.com/errata/RHSA-2024:2950 https://access.redhat.com/errata/RHSA-2024:3138 https://access.redhat.com/security/cve/CVE-2024-0841 https://bugzilla.redhat.com/show_bug.cgi?id=2256490 https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html • CWE-476: NULL Pointer Dereference •
CVSS: 7.1EPSS: 0%CPEs: 3EXPL: 0CVE-2024-0775 – Kernel: use-after-free while changing the mount option in __ext4_remount leading
https://notcve.org/view.php?id=CVE-2024-0775
A use-after-free flaw was found in the __ext4_remount in fs/ext4/super.c in ext4 in the Linux kernel. This flaw allows a local user to cause an information leak problem while freeing the old quota file names before a potential failure, leading to a use-after-free. Se encontró una falla de use-after-free en __ext4_remount en fs/ext4/super.c en ext4 en el kernel de Linux. Esta falla permite que un usuario local cause un problema de fuga de información mientras libera los nombres de archivos de cuota antiguos antes de una posible falla, lo que lleva a un use-after-free. • https://access.redhat.com/security/cve/CVE-2024-0775 https://bugzilla.redhat.com/show_bug.cgi?id=2259414 https://scm.linefinity.com/common/linux-stable/commit/4c0b4818b1f636bc96359f7817a2d8bab6370162 • CWE-416: Use After Free •
CVSS: 6.6EPSS: 0%CPEs: 5EXPL: 0CVE-2024-0607 – Kernel: nf_tables: pointer math issue in nft_byteorder_eval()
https://notcve.org/view.php?id=CVE-2024-0607
A flaw was found in the Netfilter subsystem in the Linux kernel. The issue is in the nft_byteorder_eval() function, where the code iterates through a loop and writes to the `dst` array. On each iteration, 8 bytes are written, but `dst` is an array of u32, so each element only has space for 4 bytes. That means every iteration overwrites part of the previous element corrupting this array of u32. This flaw allows a local user to cause a denial of service or potentially break NetFilter functionality. • https://access.redhat.com/security/cve/CVE-2024-0607 https://bugzilla.redhat.com/show_bug.cgi?id=2258635 https://github.com/torvalds/linux/commit/c301f0981fdd3fd1ffac6836b423c4d7a8e0eb63 https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html • CWE-229: Improper Handling of Values •