The remote SUSE Linux SLES15 / openSUSE 15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2023:4343-1 advisory.

  - Incorrect verifier pruning in BPF in Linux Kernel >=5.4 leads to unsafe code paths being incorrectly     marked as safe, resulting in arbitrary read/write in kernel memory, lateral privilege escalation, and     container escape. (CVE-2023-2163)

  - An out-of-bounds read vulnerability was found in the SR-IPv6 implementation in the Linux kernel. The flaw     exists within the processing of seg6 attributes. The issue results from the improper validation of user-     supplied data, which can result in a read past the end of an allocated buffer. This flaw allows a     privileged local user to disclose sensitive information on affected installations of the Linux kernel.
    (CVE-2023-2860)

  - An issue was discovered in drivers/mtd/ubi/cdev.c in the Linux kernel 6.2. There is a divide-by-zero error     in do_div(sz,mtd->erasesize), used indirectly by ctrl_cdev_ioctl, when mtd->erasesize is 0.
    (CVE-2023-31085)

  - The vulnerability exists due to improper event handling in Linux kernel. A malicious guest can disable     paravirtualized device to cause a deadlock in a backend domain (other than dom0). (CVE-2023-34324)

  - A flaw was found in the Netfilter subsystem in the Linux kernel. The nfnl_osf_add_callback function did     not validate the user mode controlled opt_num field. This flaw allows a local privileged (CAP_NET_ADMIN)     attacker to trigger an out-of-bounds read, leading to a crash or information disclosure. (CVE-2023-39189)

  - An improper input validation flaw was found in the eBPF subsystem in the Linux kernel. The issue occurs     due to a lack of proper validation of dynamic pointers within user-supplied eBPF programs prior to     executing them. This may allow an attacker with CAP_BPF privileges to escalate privileges and execute     arbitrary code in the context of the kernel. (CVE-2023-39191)

  - A flaw was found in the Netfilter subsystem in the Linux kernel. The sctp_mt_check did not validate the     flag_count field. This flaw allows a local privileged (CAP_NET_ADMIN) attacker to trigger an out-of-bounds     read, leading to a crash or information disclosure. (CVE-2023-39193)

  - An issue was discovered in drivers/usb/storage/ene_ub6250.c for the ENE UB6250 reader driver in the Linux     kernel before 6.2.5. An object could potentially extend beyond the end of an allocation. (CVE-2023-45862)

  - A use-after-free vulnerability was found in drivers/nvme/target/tcp.c` in `nvmet_tcp_free_crypto` due to a     logical bug in the NVMe-oF/TCP subsystem in the Linux kernel. This issue may allow a malicious user to     cause a use-after-free and double-free problem, which may permit remote code execution or lead to local     privilege escalation in case that the attacker already has local privileges. (CVE-2023-5178)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

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SUSE SLES15 / openSUSE 15 Security Update : kernel (SUSE-SU-2023:4343-1)

high Nessus Plugin ID 184338

Version 1.3