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: 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-2023-30549 – Unpatched extfs vulnerabilities are exploitable through suid-mode Apptainer
https://notcve.org/view.php?id=CVE-2023-30549
Apptainer is an open source container platform for Linux. There is an ext4 use-after-free flaw that is exploitable through versions of Apptainer < 1.1.0 and installations that include apptainer-suid < 1.1.8 on older operating systems where that CVE has not been patched. That includes Red Hat Enterprise Linux 7, Debian 10 buster (unless the linux-5.10 package is installed), Ubuntu 18.04 bionic and Ubuntu 20.04 focal. Use-after-free flaws in the kernel can be used to attack the kernel for denial of service and potentially for privilege escalation. Apptainer 1.1.8 includes a patch that by default disables mounting of extfs filesystem types in setuid-root mode, while continuing to allow mounting of extfs filesystems in non-setuid "rootless" mode using fuse2fs. Some workarounds are possible. Either do not install apptainer-suid (for versions 1.1.0 through 1.1.7) or set `allow setuid = no` in apptainer.conf. • https://access.redhat.com/security/cve/cve-2022-1184 https://github.com/apptainer/apptainer/commit/5a4964f5ba9c8d89a0e353b97f51fd607670a9f7 https://github.com/apptainer/apptainer/releases/tag/v1.1.8 https://github.com/apptainer/apptainer/security/advisories/GHSA-j4rf-7357-f4cg https://github.com/torvalds/linux/commit/2220eaf90992c11d888fe771055d4de3303 https://github.com/torvalds/linux/commit/4f04351888a83e595571de672e0a4a8b74f https://lwn.net/Articles/932136 https://lwn.net/Articles/932137 https://security-tracker.debi • CWE-416: Use After Free •
CVSS: 6.7EPSS: 0%CPEs: 7EXPL: 0CVE-2023-2194 – kernel: i2c: out-of-bounds write in xgene_slimpro_i2c_xfer()
https://notcve.org/view.php?id=CVE-2023-2194
An out-of-bounds write vulnerability was found in the Linux kernel's SLIMpro I2C device driver. The userspace "data->block[0]" variable was not capped to a number between 0-255 and was used as the size of a memcpy, possibly writing beyond the end of dma_buffer. This flaw could allow a local privileged user to crash the system or potentially achieve code execution. An out-of-bounds write vulnerability was found in the Linux kernel's SLIMpro I2C device driver. The userspace "data->block[0]" variable was not limited to a number between 0-255 and was used as the size of a memcpy, possibly writing beyond the end of dma_buffer. • https://bugzilla.redhat.com/show_bug.cgi?id=2188396 https://github.com/torvalds/linux/commit/92fbb6d1296f https://lists.debian.org/debian-lts-announce/2023/05/msg00005.html https://lists.debian.org/debian-lts-announce/2023/05/msg00006.html https://access.redhat.com/security/cve/CVE-2023-2194 • CWE-787: Out-of-bounds Write •
CVSS: 5.5EPSS: 0%CPEs: 3EXPL: 0CVE-2023-28327 – kernel: denial of service problem in net/unix/diag.c
https://notcve.org/view.php?id=CVE-2023-28327
A NULL pointer dereference flaw was found in the UNIX protocol in net/unix/diag.c In unix_diag_get_exact in the Linux Kernel. The newly allocated skb does not have sk, leading to a NULL pointer. This flaw allows a local user to crash or potentially cause a denial of service. • https://bugzilla.redhat.com/show_bug.cgi?id=2177382 https://access.redhat.com/security/cve/CVE-2023-28327 • CWE-476: NULL Pointer Dereference •