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.

An update of the linux package has been released.

The version of hyperv-daemons / kernel installed on the remote CBL Mariner 2.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2023-6111 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 Oracle Linux 8 / 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2024-12159 advisory.

    - RDMA/irdma: Prevent zero-length STAG registration (Christopher Bednarz) [Orabug: 36155612]     {CVE-2023-25775}
    - netfilter: nf_tables: bail out on mismatching dynset and set expressions (Pablo Neira Ayuso) [Orabug:
    36155544] {CVE-2023-6622}
    - netfilter: nf_tables: remove catchall element in GC sync path (Pablo Neira Ayuso) [Orabug: 36028059]     {CVE-2023-6111}
    - x86/sev: Check for user-space IOIO pointing to kernel space (Joerg Roedel) [Orabug: 35959905]     {CVE-2023-46813}
    - x86/sev: Check IOBM for IOIO exceptions from user-space (Joerg Roedel) [Orabug: 35959905]     {CVE-2023-46813}
    - Bluetooth: Reject connection with the device which has same BD_ADDR (Lee, Chun-Yi) [Orabug: 35959595]     {CVE-2020-26555}
    - ravb: Fix use-after-free issue in ravb_tx_timeout_work() (Yoshihiro Shimoda) [Orabug: 35959875]     {CVE-2023-35827}

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

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.

    Lonial Con discovered that the netfilter subsystem in the Linux kernel did not properly handle an expired     catchall element in some situations, leading to a use-after-free vulnerability. A local attacker could use     this to cause a denial of service (system crash) or possibly execute arbitrary code.

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

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.

    2024-11-13: CVE-2023-52752 was added to this advisory.

    2024-07-03: CVE-2023-52840 was added to this advisory.

    2024-07-03: CVE-2023-6622 was added to this advisory.

    2024-07-03: CVE-2023-52813 was added to this advisory.

    2024-07-03: CVE-2023-52762 was added to this advisory.

    2024-06-19: CVE-2023-52860 was added to this advisory.

    2024-06-19: CVE-2023-52796 was added to this advisory.

    2024-06-19: CVE-2023-52803 was added to this advisory.

    2024-06-19: CVE-2023-52784 was added to this advisory.

    2024-06-19: CVE-2023-52778 was added to this advisory.

    2024-02-01: CVE-2024-0584 was added to this advisory.

    2024-02-01: CVE-2024-0607 was added to this advisory.

    2024-01-03: CVE-2023-6932 was added to this advisory.

    In the Linux kernel, the following vulnerability has been resolved:

    smb: client: fix use-after-free bug in cifs_debug_data_proc_show() (CVE-2023-52752)

    In the Linux kernel, the following vulnerability has been resolved:

    virtio-blk: fix implicit overflow on virtio_max_dma_size (CVE-2023-52762)

    In the Linux kernel, the following vulnerability has been resolved:

    mptcp: deal with large GSO size (CVE-2023-52778)

    In the Linux kernel, the following vulnerability has been resolved:

    bonding: stop the device in bond_setup_by_slave() (CVE-2023-52784)

    In the Linux kernel, the following vulnerability has been resolved:

    ipvlan: add ipvlan_route_v6_outbound() helper (CVE-2023-52796)

    In the Linux kernel, the following vulnerability has been resolved:

    SUNRPC: Fix RPC client cleaned up the freed pipefs dentries (CVE-2023-52803)

    In the Linux kernel, the following vulnerability has been resolved:

    crypto: pcrypt - Fix hungtask for PADATA_RESET (CVE-2023-52813)

    In the Linux kernel, the following vulnerability has been resolved:

    Input: synaptics-rmi4 - fix use after free in rmi_unregister_function() (CVE-2023-52840)

    In the Linux kernel, the following vulnerability has been resolved:

    drivers/perf: hisi: use cpuhp_state_remove_instance_nocalls() for hisi_hns3_pmu uninit process     (CVE-2023-52860)

    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 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)

    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)

    netfilter: nf_tables: fix pointer math issue in nft_byteorder_eval() (CVE-2024-0607)

Tenable has extracted the preceding description block directly from the tested product security advisory.

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.

    The 6.6.3 stable kernel update contains a number of important fixes across the tree.

Tenable has extracted the preceding description block directly from the Fedora security advisory.

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.

    The 6.6.3 stable kernel update contains a number of important fixes across the tree.

Tenable has extracted the preceding description block directly from the Fedora security advisory.

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
204441	Photon OS 5.0: Linux PHSA-2024-5.0-0187	Nessus	PhotonOS Local Security Checks	critical
201744	CBL Mariner 2.0 Security Update: hyperv-daemons / kernel (CVE-2023-6111)	Nessus	MarinerOS Local Security Checks	high
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

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CVE-2023-6111

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