CVSS: 7.8EPSS: 0%CPEs: 16EXPL: 5CVE-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
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 writes in kernel memory. • https://github.com/oferchen/POC-CVE-2023-32233 https://github.com/PIDAN-HEIDASHUAI/CVE-2023-32233 https://github.com/Liuk3r/CVE-2023-32233 https://github.com/RogelioPumajulca/TEST-CVE-2023-32233 https://github.com/void0red/CVE-2023-32233 http://packetstormsecurity.com/files/173087/Kernel-Live-Patch-Security-Notice-LSN-0095-1.html http://www.openwall.com/lists/oss-security/2023/05/15/5 https://bugzilla.redhat.com/show_bug.cgi?id=2196105 https://git.kernel.org/cgit/linux/k • CWE-416: Use After Free •
CVSS: 4.7EPSS: 0%CPEs: 7EXPL: 0CVE-2023-1859
https://notcve.org/view.php?id=CVE-2023-1859
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. • https://lore.kernel.org/all/20230313090002.3308025-1-zyytlz.wz%40163.com • CWE-416: Use After Free •
CVSS: 7.5EPSS: 2%CPEs: 8EXPL: 0CVE-2023-2156 – Linux Kernel IPv6 RPL Protocol Reachable Assertion Denial-of-Service Vulnerability
https://notcve.org/view.php?id=CVE-2023-2156
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. This vulnerability allows remote attackers to create a denial-of-service condition on affected installations of Linux Kernel. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of the RPL protocol. • http://www.openwall.com/lists/oss-security/2023/05/17/8 http://www.openwall.com/lists/oss-security/2023/05/17/9 http://www.openwall.com/lists/oss-security/2023/05/18/1 http://www.openwall.com/lists/oss-security/2023/05/19/1 https://bugzilla.redhat.com/show_bug.cgi?id=2196292 https://lists.debian.org/debian-lts-announce/2023/08/msg00001.html https://security.netapp.com/advisory/ntap-20230622-0001 https://www.debian.org/security/2023/dsa-5448 https:// • CWE-617: Reachable Assertion •
CVSS: 7.8EPSS: 0%CPEs: 3EXPL: 0CVE-2023-2235 – Use-after-free in Linux kernel's Performance Events subsystem
https://notcve.org/view.php?id=CVE-2023-2235
A use-after-free vulnerability in the Linux Kernel Performance Events system can be exploited to achieve local privilege escalation. The perf_group_detach function did not check the event's siblings' attach_state before calling add_event_to_groups(), but remove_on_exec made it possible to call list_del_event() on before detaching from their group, making it possible to use a dangling pointer causing a use-after-free vulnerability. We recommend upgrading past commit fd0815f632c24878e325821943edccc7fde947a2. The Linux kernel's Performance Events subsystem has a use-after-free flaw that occurs when a user triggers the perf_group_detach and remove_on_exec functions simultaneously. This flaw allows a local user to crash or potentially escalate their privileges on the system. • https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=fd0815f632c24878e325821943edccc7fde947a2 https://kernel.dance/fd0815f632c24878e325821943edccc7fde947a2 https://access.redhat.com/security/cve/CVE-2023-2235 https://bugzilla.redhat.com/show_bug.cgi?id=2192589 • CWE-416: Use After Free •
CVSS: 8.2EPSS: 0%CPEs: 7EXPL: 0CVE-2023-31436 – Linux Kernel Net Scheduler Out-Of-Bounds Access Local Privilege Escalation Vulnerability
https://notcve.org/view.php?id=CVE-2023-31436
qfq_change_class in net/sched/sch_qfq.c in the Linux kernel before 6.2.13 allows an out-of-bounds write because lmax can exceed QFQ_MIN_LMAX. An out-of-bounds memory access flaw was found in the Linux kernel’s traffic control (QoS) subsystem in how a user triggers the qfq_change_class function with an incorrect MTU value of the network device used as lmax. This flaw allows a local user to crash or potentially escalate their privileges on the system. This vulnerability allows local attackers to escalate privileges on affected installations of the Linux Kernel. An attacker must first obtain the ability to execute high-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the handling of the MTU value provided to the QFQ Scheduler. • http://packetstormsecurity.com/files/173087/Kernel-Live-Patch-Security-Notice-LSN-0095-1.html http://packetstormsecurity.com/files/173757/Kernel-Live-Patch-Security-Notice-LSN-0096-1.html http://packetstormsecurity.com/files/175963/Kernel-Live-Patch-Security-Notice-LSN-0099-1.html https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.2.13 https://github.com/torvalds/linux/commit/3037933448f60f9acb705997eae62013ecb81e0d https://lists.debian.org/debian-lts-announce/2023/06/msg00008.html https://security • CWE-787: Out-of-bounds Write •