A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to achieve local privilege escalation. The function nft_trans_gc_catchall did not remove the catchall set element from the catchall_list when the argument sync is true, making it possible to free a catchall set element many times. We recommend upgrading past commit 93995bf4af2c5a99e2a87f0cd5ce547d31eb7630.

The remote Oracle Linux 8 / 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2024-12159 advisory.

  - Bluetooth legacy BR/EDR PIN code pairing in Bluetooth Core Specification 1.0B through 5.2 may permit an     unauthenticated nearby device to spoof the BD_ADDR of the peer device to complete pairing without     knowledge of the PIN. (CVE-2020-26555)

  - A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to     achieve local privilege escalation. The function nft_trans_gc_catchall did not remove the catchall set     element from the catchall_list when the argument sync is true, making it possible to free a catchall set     element many times. We recommend upgrading past commit 93995bf4af2c5a99e2a87f0cd5ce547d31eb7630.
    (CVE-2023-6111)

  - An issue was discovered in the Linux kernel through 6.3.8. A use-after-free was found in ravb_remove in     drivers/net/ethernet/renesas/ravb_main.c. (CVE-2023-35827)

  - Improper access control in the Intel(R) Ethernet Controller RDMA driver for linux before version 1.9.30     may allow an unauthenticated user to potentially enable escalation of privilege via network access.
    (CVE-2023-25775)

  - An issue was discovered in the Linux kernel before 6.5.9, exploitable by local users with userspace access     to MMIO registers. Incorrect access checking in the #VC handler and instruction emulation of the SEV-ES     emulation of MMIO accesses could lead to arbitrary write access to kernel memory (and thus privilege     escalation). This depends on a race condition through which userspace can replace an instruction before     the #VC handler reads it. (CVE-2023-46813)

  - A null pointer dereference vulnerability was found in nft_dynset_init() in net/netfilter/nft_dynset.c in     nf_tables in the Linux kernel. This issue may allow a local attacker with CAP_NET_ADMIN user privilege to     trigger a denial of service. (CVE-2023-6622)

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

The remote Ubuntu 22.04 LTS host has a package installed that is affected by a vulnerability as referenced in the USN-6576-1 advisory.

  - A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to     achieve local privilege escalation. The function nft_trans_gc_catchall did not remove the catchall set     element from the catchall_list when the argument sync is true, making it possible to free a catchall set     element many times. We recommend upgrading past commit 93995bf4af2c5a99e2a87f0cd5ce547d31eb7630.
    (CVE-2023-6111)

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

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2023-461 advisory.

  - A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to     achieve local privilege escalation. The function nft_trans_gc_catchall did not remove the catchall set     element from the catchall_list when the argument sync is true, making it possible to free a catchall set     element many times. We recommend upgrading past commit 93995bf4af2c5a99e2a87f0cd5ce547d31eb7630.
    (CVE-2023-6111)

  - A use-after-free vulnerability in the Linux kernel's ipv4: igmp component can be exploited to achieve     local privilege escalation. A race condition can be exploited to cause a timer be mistakenly registered on     a RCU read locked object which is freed by another thread. We recommend upgrading past commit     e2b706c691905fe78468c361aaabc719d0a496f1. (CVE-2023-6932)

  - A use-after-free issue was found in igmp_start_timer in net/ipv4/igmp.c in the network sub-component in     the Linux Kernel. This flaw allows a local user to observe a refcnt use-after-free issue when receiving an     igmp query packet, leading to a kernel information leak. (CVE-2024-0584)

  - 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. (CVE-2024-0607)

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

The version of kernel installed on the remote host is prior to 5.15.139-93.147. It is, therefore, affected by a vulnerability as referenced in the ALAS2KERNEL-5.15-2023-031 advisory.

  - A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to     achieve local privilege escalation. The function nft_trans_gc_catchall did not remove the catchall set     element from the catchall_list when the argument sync is true, making it possible to free a catchall set     element many times. We recommend upgrading past commit 93995bf4af2c5a99e2a87f0cd5ce547d31eb7630.
    (CVE-2023-6111)

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

The remote Fedora 39 host has packages installed that are affected by multiple vulnerabilities as referenced in the FEDORA-2023-a7b89262c6 advisory.

  - A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to     achieve local privilege escalation. The function nft_trans_gc_catchall did not remove the catchall set     element from the catchall_list when the argument sync is true, making it possible to free a catchall set     element many times. We recommend upgrading past commit 93995bf4af2c5a99e2a87f0cd5ce547d31eb7630.
    (CVE-2023-6111)

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

The remote Fedora 38 host has packages installed that are affected by multiple vulnerabilities as referenced in the FEDORA-2023-15deb2e32a advisory.

  - A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to     achieve local privilege escalation. The function nft_trans_gc_catchall did not remove the catchall set     element from the catchall_list when the argument sync is true, making it possible to free a catchall set     element many times. We recommend upgrading past commit 93995bf4af2c5a99e2a87f0cd5ce547d31eb7630.
    (CVE-2023-6111)

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

ID	Name	Product	Family	Severity
190580	Oracle Linux 8 / 9 : Unbreakable Enterprise kernel (ELSA-2024-12159)	Nessus	Oracle Linux Local Security Checks	critical
187936	Ubuntu 22.04 LTS : Linux kernel (OEM) vulnerability (USN-6576-1)	Nessus	Ubuntu Local Security Checks	high
186974	Amazon Linux 2023 : bpftool, kernel, kernel-devel (ALAS2023-2023-461)	Nessus	Amazon Linux Local Security Checks	high
186553	Amazon Linux 2 : kernel (ALASKERNEL-5.15-2023-031)	Nessus	Amazon Linux Local Security Checks	high
186532	Fedora 39 : kernel / kernel-headers / kernel-tools (2023-a7b89262c6)	Nessus	Fedora Local Security Checks	high
186530	Fedora 38 : kernel / kernel-headers / kernel-tools (2023-15deb2e32a)	Nessus	Fedora Local Security Checks	high

Detections

Analytics

CVE-2023-6111

high

Tenable Plugins

critical

high

high

high

high

high