A flaw was found in the Linux kernel's ksmbd, a high-performance in-kernel SMB server. The specific flaw exists within the processing of SMB2_SESSION_SETUP commands. The issue results from the lack of proper locking when performing operations on an object. An attacker can leverage this vulnerability to execute code in the context of the kernel.

The remote Ubuntu 20.04 LTS / 22.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-6626-3 advisory.

    Quentin Minster discovered that a race condition existed in the KSMBD implementation in the Linux kernel     when handling sessions operations. A remote attacker could use this to cause a denial of service (system     crash) or possibly execute arbitrary code. (CVE-2023-32250, CVE-2023-32252, CVE-2023-32257)

    Marek Marczykowski-Grecki discovered that the Xen event channel infrastructure implementation in the     Linux kernel contained a race condition. An attacker in a guest VM could possibly use this to cause a     denial of service (paravirtualized device unavailability). (CVE-2023-34324)

    Zheng Wang discovered a use-after-free in the Renesas Ethernet AVB driver in the Linux kernel during     device removal. A privileged attacker could use this to cause a denial of service (system crash).
    (CVE-2023-35827)

    Tom Dohrmann discovered that the Secure Encrypted Virtualization (SEV) implementation for AMD processors     in the Linux kernel contained a race condition when accessing MMIO registers. A local attacker in a SEV     guest VM could possibly use this to cause a denial of service (system crash) or possibly execute arbitrary     code. (CVE-2023-46813)

    It was discovered that the Microchip USB Ethernet driver in the Linux kernel contained a race condition     during device removal, leading to a use- after-free vulnerability. A physically proximate attacker could     use this to cause a denial of service (system crash). (CVE-2023-6039)

    It was discovered that the TLS subsystem in the Linux kernel did not properly perform cryptographic     operations in some situations, leading to a null pointer dereference vulnerability. A local attacker could     use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-6176)

    Xingyuan Mo discovered that the netfilter subsystem in the Linux kernel did not properly handle dynset     expressions passed from userspace, leading to a null pointer dereference vulnerability. A local attacker     could use this to cause a denial of service (system crash). (CVE-2023-6622)

    It was discovered that the TIPC protocol implementation in the Linux kernel did not properly handle     locking during tipc_crypto_key_revoke() operations. A local attacker could use this to cause a denial of     service (kernel deadlock). (CVE-2024-0641)

Tenable has extracted the preceding description block directly from the Ubuntu 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 20.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-6628-2 advisory.

    Quentin Minster discovered that a race condition existed in the KSMBD implementation in the Linux kernel     when handling sessions operations. A remote attacker could use this to cause a denial of service (system     crash) or possibly execute arbitrary code. (CVE-2023-32250, CVE-2023-32252, CVE-2023-32257)

    Marek Marczykowski-Grecki discovered that the Xen event channel infrastructure implementation in the     Linux kernel contained a race condition. An attacker in a guest VM could possibly use this to cause a     denial of service (paravirtualized device unavailability). (CVE-2023-34324)

    Zheng Wang discovered a use-after-free in the Renesas Ethernet AVB driver in the Linux kernel during     device removal. A privileged attacker could use this to cause a denial of service (system crash).
    (CVE-2023-35827)

    Tom Dohrmann discovered that the Secure Encrypted Virtualization (SEV) implementation for AMD processors     in the Linux kernel contained a race condition when accessing MMIO registers. A local attacker in a SEV     guest VM could possibly use this to cause a denial of service (system crash) or possibly execute arbitrary     code. (CVE-2023-46813)

    It was discovered that the Microchip USB Ethernet driver in the Linux kernel contained a race condition     during device removal, leading to a use- after-free vulnerability. A physically proximate attacker could     use this to cause a denial of service (system crash). (CVE-2023-6039)

    Lin Ma discovered that the netfilter subsystem in the Linux kernel did not properly validate network     family support while creating a new netfilter table. A local attacker could use this to cause a denial of     service or possibly execute arbitrary code. (CVE-2023-6040)

    It was discovered that the TLS subsystem in the Linux kernel did not properly perform cryptographic     operations in some situations, leading to a null pointer dereference vulnerability. A local attacker could     use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-6176)

    It was discovered that the CIFS network file system implementation in the Linux kernel did not properly     validate the server frame size in certain situation, leading to an out-of-bounds read vulnerability. An     attacker could use this to construct a malicious CIFS image that, when operated on, could cause a denial     of service (system crash) or possibly expose sensitive information. (CVE-2023-6606)

    Xingyuan Mo discovered that the netfilter subsystem in the Linux kernel did not properly handle dynset     expressions passed from userspace, leading to a null pointer dereference vulnerability. A local attacker     could use this to cause a denial of service (system crash). (CVE-2023-6622)

    Xingyuan Mo discovered that the netfilter subsystem in the Linux kernel did not properly handle inactive     elements in its PIPAPO data structure, 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. (CVE-2023-6817)

    Budimir Markovic, Lucas De Marchi, and Pengfei Xu discovered that the perf subsystem in the Linux kernel     did not properly validate all event sizes when attaching new events, leading to an out-of-bounds write     vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly     execute arbitrary code. (CVE-2023-6931)

    It was discovered that the IGMP protocol implementation in the Linux kernel contained a race condition,     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. (CVE-2023-6932)

    Kevin Rich discovered that the netfilter subsystem in the Linux kernel did not properly check deactivated     elements in certain 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. (CVE-2024-0193)

    It was discovered that the TIPC protocol implementation in the Linux kernel did not properly handle     locking during tipc_crypto_key_revoke() operations. A local attacker could use this to cause a denial of     service (kernel deadlock). (CVE-2024-0641)

Tenable has extracted the preceding description block directly from the Ubuntu 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 multiple vulnerabilities as referenced in the USN-6626-2 advisory.

    Quentin Minster discovered that a race condition existed in the KSMBD implementation in the Linux kernel     when handling sessions operations. A remote attacker could use this to cause a denial of service (system     crash) or possibly execute arbitrary code. (CVE-2023-32250, CVE-2023-32252, CVE-2023-32257)

    Marek Marczykowski-Grecki discovered that the Xen event channel infrastructure implementation in the     Linux kernel contained a race condition. An attacker in a guest VM could possibly use this to cause a     denial of service (paravirtualized device unavailability). (CVE-2023-34324)

    Zheng Wang discovered a use-after-free in the Renesas Ethernet AVB driver in the Linux kernel during     device removal. A privileged attacker could use this to cause a denial of service (system crash).
    (CVE-2023-35827)

    Tom Dohrmann discovered that the Secure Encrypted Virtualization (SEV) implementation for AMD processors     in the Linux kernel contained a race condition when accessing MMIO registers. A local attacker in a SEV     guest VM could possibly use this to cause a denial of service (system crash) or possibly execute arbitrary     code. (CVE-2023-46813)

    It was discovered that the Microchip USB Ethernet driver in the Linux kernel contained a race condition     during device removal, leading to a use- after-free vulnerability. A physically proximate attacker could     use this to cause a denial of service (system crash). (CVE-2023-6039)

    It was discovered that the TLS subsystem in the Linux kernel did not properly perform cryptographic     operations in some situations, leading to a null pointer dereference vulnerability. A local attacker could     use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-6176)

    Xingyuan Mo discovered that the netfilter subsystem in the Linux kernel did not properly handle dynset     expressions passed from userspace, leading to a null pointer dereference vulnerability. A local attacker     could use this to cause a denial of service (system crash). (CVE-2023-6622)

    It was discovered that the TIPC protocol implementation in the Linux kernel did not properly handle     locking during tipc_crypto_key_revoke() operations. A local attacker could use this to cause a denial of     service (kernel deadlock). (CVE-2024-0641)

Tenable has extracted the preceding description block directly from the Ubuntu 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 multiple vulnerabilities as referenced in the USN-6628-1 advisory.

    Quentin Minster discovered that a race condition existed in the KSMBD implementation in the Linux kernel     when handling sessions operations. A remote attacker could use this to cause a denial of service (system     crash) or possibly execute arbitrary code. (CVE-2023-32250, CVE-2023-32252, CVE-2023-32257)

    Marek Marczykowski-Grecki discovered that the Xen event channel infrastructure implementation in the     Linux kernel contained a race condition. An attacker in a guest VM could possibly use this to cause a     denial of service (paravirtualized device unavailability). (CVE-2023-34324)

    Zheng Wang discovered a use-after-free in the Renesas Ethernet AVB driver in the Linux kernel during     device removal. A privileged attacker could use this to cause a denial of service (system crash).
    (CVE-2023-35827)

    Tom Dohrmann discovered that the Secure Encrypted Virtualization (SEV) implementation for AMD processors     in the Linux kernel contained a race condition when accessing MMIO registers. A local attacker in a SEV     guest VM could possibly use this to cause a denial of service (system crash) or possibly execute arbitrary     code. (CVE-2023-46813)

    It was discovered that the Microchip USB Ethernet driver in the Linux kernel contained a race condition     during device removal, leading to a use- after-free vulnerability. A physically proximate attacker could     use this to cause a denial of service (system crash). (CVE-2023-6039)

    Lin Ma discovered that the netfilter subsystem in the Linux kernel did not properly validate network     family support while creating a new netfilter table. A local attacker could use this to cause a denial of     service or possibly execute arbitrary code. (CVE-2023-6040)

    It was discovered that the TLS subsystem in the Linux kernel did not properly perform cryptographic     operations in some situations, leading to a null pointer dereference vulnerability. A local attacker could     use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-6176)

    It was discovered that the CIFS network file system implementation in the Linux kernel did not properly     validate the server frame size in certain situation, leading to an out-of-bounds read vulnerability. An     attacker could use this to construct a malicious CIFS image that, when operated on, could cause a denial     of service (system crash) or possibly expose sensitive information. (CVE-2023-6606)

    Xingyuan Mo discovered that the netfilter subsystem in the Linux kernel did not properly handle dynset     expressions passed from userspace, leading to a null pointer dereference vulnerability. A local attacker     could use this to cause a denial of service (system crash). (CVE-2023-6622)

    Xingyuan Mo discovered that the netfilter subsystem in the Linux kernel did not properly handle inactive     elements in its PIPAPO data structure, 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. (CVE-2023-6817)

    Budimir Markovic, Lucas De Marchi, and Pengfei Xu discovered that the perf subsystem in the Linux kernel     did not properly validate all event sizes when attaching new events, leading to an out-of-bounds write     vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly     execute arbitrary code. (CVE-2023-6931)

    It was discovered that the IGMP protocol implementation in the Linux kernel contained a race condition,     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. (CVE-2023-6932)

    Kevin Rich discovered that the netfilter subsystem in the Linux kernel did not properly check deactivated     elements in certain 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. (CVE-2024-0193)

    It was discovered that the TIPC protocol implementation in the Linux kernel did not properly handle     locking during tipc_crypto_key_revoke() operations. A local attacker could use this to cause a denial of     service (kernel deadlock). (CVE-2024-0641)

Tenable has extracted the preceding description block directly from the Ubuntu 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 20.04 LTS / 22.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-6626-1 advisory.

    Quentin Minster discovered that a race condition existed in the KSMBD implementation in the Linux kernel     when handling sessions operations. A remote attacker could use this to cause a denial of service (system     crash) or possibly execute arbitrary code. (CVE-2023-32250, CVE-2023-32252, CVE-2023-32257)

    Marek Marczykowski-Grecki discovered that the Xen event channel infrastructure implementation in the     Linux kernel contained a race condition. An attacker in a guest VM could possibly use this to cause a     denial of service (paravirtualized device unavailability). (CVE-2023-34324)

    Zheng Wang discovered a use-after-free in the Renesas Ethernet AVB driver in the Linux kernel during     device removal. A privileged attacker could use this to cause a denial of service (system crash).
    (CVE-2023-35827)

    Tom Dohrmann discovered that the Secure Encrypted Virtualization (SEV) implementation for AMD processors     in the Linux kernel contained a race condition when accessing MMIO registers. A local attacker in a SEV     guest VM could possibly use this to cause a denial of service (system crash) or possibly execute arbitrary     code. (CVE-2023-46813)

    It was discovered that the Microchip USB Ethernet driver in the Linux kernel contained a race condition     during device removal, leading to a use- after-free vulnerability. A physically proximate attacker could     use this to cause a denial of service (system crash). (CVE-2023-6039)

    It was discovered that the TLS subsystem in the Linux kernel did not properly perform cryptographic     operations in some situations, leading to a null pointer dereference vulnerability. A local attacker could     use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-6176)

    Xingyuan Mo discovered that the netfilter subsystem in the Linux kernel did not properly handle dynset     expressions passed from userspace, leading to a null pointer dereference vulnerability. A local attacker     could use this to cause a denial of service (system crash). (CVE-2023-6622)

    It was discovered that the TIPC protocol implementation in the Linux kernel did not properly handle     locking during tipc_crypto_key_revoke() operations. A local attacker could use this to cause a denial of     service (kernel deadlock). (CVE-2024-0641)

Tenable has extracted the preceding description block directly from the Ubuntu 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 multiple vulnerabilities as referenced in the USN-6173-1 advisory.

    Gwangun Jung discovered that the Quick Fair Queueing scheduler implementation in the Linux kernel     contained an out-of-bounds write vulnerability. A local attacker could use this to cause a denial of     service (system crash) or possibly execute arbitrary code. (CVE-2023-31436)

    It was discovered that the Broadcom FullMAC USB WiFi driver in the Linux kernel did not properly perform     data buffer size validation in some situations. A physically proximate attacker could use this to craft a     malicious USB device that when inserted, could cause a denial of service (system crash) or possibly expose     sensitive information. (CVE-2023-1380)

    Ruihan Li discovered that the bluetooth subsystem in the Linux kernel did not properly perform permissions     checks when handling HCI sockets. A physically proximate attacker could use this to cause a denial of     service (bluetooth communication). (CVE-2023-2002)

    It was discovered that the IPv6 RPL protocol implementation in the Linux kernel did not properly handle     user-supplied data. A remote attacker could use this to cause a denial of service (system crash).
    (CVE-2023-2156)

    Zheng Zhang discovered that the device-mapper implementation in the Linux kernel did not properly handle     locking during table_clear() operations. A local attacker could use this to cause a denial of service     (kernel deadlock). (CVE-2023-2269)

    Quentin Minster discovered that a race condition existed in the KSMBD implementation in the Linux kernel     when handling sessions operations. A remote attacker could use this to cause a denial of service (system     crash) or possibly execute arbitrary code. (CVE-2023-32250)

    Quentin Minster discovered that a race condition existed in the KSMBD implementation in the Linux kernel,     leading to a use-after-free vulnerability. A remote attacker could use this to cause a denial of service     (system crash) or possibly execute arbitrary code. (CVE-2023-32254)

Tenable has extracted the preceding description block directly from the Ubuntu 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 / 23.04 host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-6338-2 advisory.

    Zi Fan Tan discovered that the binder IPC implementation in the Linux kernel contained a use-after-free     vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly     execute arbitrary code. (CVE-2023-21255)

    It was discovered that a race condition existed in the f2fs file system in the Linux kernel, leading to a     null pointer dereference vulnerability. An attacker could use this to construct a malicious f2fs image     that, when mounted and operated on, could cause a denial of service (system crash). (CVE-2023-2898)

    It was discovered that the DVB Core driver in the Linux kernel did not properly handle locking events in     certain situations. A local attacker could use this to cause a denial of service (kernel deadlock).
    (CVE-2023-31084)

    Quentin Minster discovered that the KSMBD implementation in the Linux kernel did not properly handle     session setup requests. A remote attacker could possibly use this to cause a denial of service (memory     exhaustion). (CVE-2023-32247)

    Quentin Minster discovered that a race condition existed in the KSMBD implementation in the Linux kernel     when handling sessions operations. A remote attacker could use this to cause a denial of service (system     crash) or possibly execute arbitrary code. (CVE-2023-32250, CVE-2023-32252, CVE-2023-32257)

    It was discovered that a race condition existed in the KSMBD implementation in the Linux kernel when     handling session connections, leading to a use- after-free vulnerability. A remote attacker could use this     to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-32258)

    It was discovered that the KSMBD implementation in the Linux kernel did not properly validate buffer sizes     in certain operations, leading to an out-of- bounds read vulnerability. A remote attacker could use this     to cause a denial of service (system crash) or possibly expose sensitive information. (CVE-2023-38426,     CVE-2023-38428)

    It was discovered that the KSMBD implementation in the Linux kernel did not properly calculate the size of     certain buffers. A remote attacker could use this to cause a denial of service (system crash) or possibly     execute arbitrary code. (CVE-2023-38429)

Tenable has extracted the preceding description block directly from the Ubuntu 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 23.04 host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-6344-1 advisory.

    Zi Fan Tan discovered that the binder IPC implementation in the Linux kernel contained a use-after-free     vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly     execute arbitrary code. (CVE-2023-21255)

    It was discovered that a race condition existed in the f2fs file system in the Linux kernel, leading to a     null pointer dereference vulnerability. An attacker could use this to construct a malicious f2fs image     that, when mounted and operated on, could cause a denial of service (system crash). (CVE-2023-2898)

    It was discovered that the DVB Core driver in the Linux kernel did not properly handle locking events in     certain situations. A local attacker could use this to cause a denial of service (kernel deadlock).
    (CVE-2023-31084)

    Quentin Minster discovered that the KSMBD implementation in the Linux kernel did not properly handle     session setup requests. A remote attacker could possibly use this to cause a denial of service (memory     exhaustion). (CVE-2023-32247)

    Quentin Minster discovered that a race condition existed in the KSMBD implementation in the Linux kernel     when handling sessions operations. A remote attacker could use this to cause a denial of service (system     crash) or possibly execute arbitrary code. (CVE-2023-32250, CVE-2023-32252, CVE-2023-32257)

    It was discovered that a race condition existed in the KSMBD implementation in the Linux kernel when     handling session connections, leading to a use- after-free vulnerability. A remote attacker could use this     to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-32258)

    It was discovered that the KSMBD implementation in the Linux kernel did not properly validate buffer sizes     in certain operations, leading to an out-of- bounds read vulnerability. A remote attacker could use this     to cause a denial of service (system crash) or possibly expose sensitive information. (CVE-2023-38426,     CVE-2023-38428)

    It was discovered that the KSMBD implementation in the Linux kernel did not properly calculate the size of     certain buffers. A remote attacker could use this to cause a denial of service (system crash) or possibly     execute arbitrary code. (CVE-2023-38429)

Tenable has extracted the preceding description block directly from the Ubuntu 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 / 23.04 host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-6338-1 advisory.

    Zi Fan Tan discovered that the binder IPC implementation in the Linux kernel contained a use-after-free     vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly     execute arbitrary code. (CVE-2023-21255)

    It was discovered that a race condition existed in the f2fs file system in the Linux kernel, leading to a     null pointer dereference vulnerability. An attacker could use this to construct a malicious f2fs image     that, when mounted and operated on, could cause a denial of service (system crash). (CVE-2023-2898)

    It was discovered that the DVB Core driver in the Linux kernel did not properly handle locking events in     certain situations. A local attacker could use this to cause a denial of service (kernel deadlock).
    (CVE-2023-31084)

    Quentin Minster discovered that the KSMBD implementation in the Linux kernel did not properly handle     session setup requests. A remote attacker could possibly use this to cause a denial of service (memory     exhaustion). (CVE-2023-32247)

    Quentin Minster discovered that a race condition existed in the KSMBD implementation in the Linux kernel     when handling sessions operations. A remote attacker could use this to cause a denial of service (system     crash) or possibly execute arbitrary code. (CVE-2023-32250, CVE-2023-32252, CVE-2023-32257)

    It was discovered that a race condition existed in the KSMBD implementation in the Linux kernel when     handling session connections, leading to a use- after-free vulnerability. A remote attacker could use this     to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-32258)

    It was discovered that the KSMBD implementation in the Linux kernel did not properly validate buffer sizes     in certain operations, leading to an out-of- bounds read vulnerability. A remote attacker could use this     to cause a denial of service (system crash) or possibly expose sensitive information. (CVE-2023-38426,     CVE-2023-38428)

    It was discovered that the KSMBD implementation in the Linux kernel did not properly calculate the size of     certain buffers. A remote attacker could use this to cause a denial of service (system crash) or possibly     execute arbitrary code. (CVE-2023-38429)

Tenable has extracted the preceding description block directly from the Ubuntu 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 Debian 12 host has packages installed that are affected by multiple vulnerabilities as referenced in the dsa-5448 advisory.

  - An out-of-bounds memory access flaw was found in the Linux kernel's XFS file system in how a user restores     an XFS image after failure (with a dirty log journal). This flaw allows a local user to crash or     potentially escalate their privileges on the system. (CVE-2023-2124)

  - 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. (CVE-2023-2156)

  - A denial of service problem was found, due to a possible recursive locking scenario, resulting in a     deadlock in table_clear in drivers/md/dm-ioctl.c in the Linux Kernel Device Mapper-Multipathing sub-     component. (CVE-2023-2269)

  - A heap out-of-bounds write vulnerability in the Linux Kernel ipvlan network driver can be exploited to     achieve local privilege escalation. The out-of-bounds write is caused by missing skb->cb initialization in     the ipvlan network driver. The vulnerability is reachable if CONFIG_IPVLAN is enabled. We recommend     upgrading past commit 90cbed5247439a966b645b34eb0a2e037836ea8e. (CVE-2023-3090)

  - An issue was discovered in drivers/media/dvb-core/dvb_frontend.c in the Linux kernel 6.2. There is a     blocking operation when a task is in !TASK_RUNNING. In dvb_frontend_get_event, wait_event_interruptible is     called; the condition is dvb_frontend_test_event(fepriv,events). In dvb_frontend_test_event,     down(&fepriv->sem) is called. However, wait_event_interruptible would put the process to sleep, and     down(&fepriv->sem) may block the process. (CVE-2023-31084)

  - A NULL pointer dereference issue was found in the gfs2 file system in the Linux kernel. It occurs on     corrupt gfs2 file systems when the evict code tries to reference the journal descriptor structure after it     has been freed and set to NULL. A privileged local user could use this flaw to cause a kernel panic.
    (CVE-2023-3212)

  - An out of bounds (OOB) memory access flaw was found in the Linux kernel in relay_file_read_start_pos in     kernel/relay.c in the relayfs. This flaw could allow a local attacker to crash the system or leak kernel     internal information. (CVE-2023-3268)

  - A use-after-free vulnerability was found in the Linux kernel's netfilter subsystem in     net/netfilter/nf_tables_api.c. Mishandled error handling with NFT_MSG_NEWRULE makes it possible to use a     dangling pointer in the same transaction causing a use-after-free vulnerability. This flaw allows a local     attacker with user access to cause a privilege escalation issue. We recommend upgrading past commit     1240eb93f0616b21c675416516ff3d74798fdc97. (CVE-2023-3390)

  - An issue was discovered in fl_set_geneve_opt in net/sched/cls_flower.c in the Linux kernel before 6.3.7.
    It allows an out-of-bounds write in the flower classifier code via TCA_FLOWER_KEY_ENC_OPTS_GENEVE packets.
    This may result in denial of service or privilege escalation. (CVE-2023-35788)

  - distros-[DirtyVMA] Privilege escalation via non-RCU-protected VMA traversal [fedora-all] (CVE-2023-3269)

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
190610	Ubuntu 20.04 LTS / 22.04 LTS : Linux kernel (Azure) vulnerabilities (USN-6626-3)	Nessus	Ubuntu Local Security Checks	high
190560	Ubuntu 20.04 LTS : Linux kernel (Intel IoTG) vulnerabilities (USN-6628-2)	Nessus	Ubuntu Local Security Checks	high
190518	Ubuntu 22.04 LTS : Linux kernel vulnerabilities (USN-6626-2)	Nessus	Ubuntu Local Security Checks	high
190369	Ubuntu 22.04 LTS : Linux kernel (Intel IoTG) vulnerabilities (USN-6628-1)	Nessus	Ubuntu Local Security Checks	high
190122	Ubuntu 20.04 LTS / 22.04 LTS : Linux kernel vulnerabilities (USN-6626-1)	Nessus	Ubuntu Local Security Checks	high
183565	Ubuntu 22.04 LTS : Linux kernel (OEM) vulnerabilities (USN-6173-1)	Nessus	Ubuntu Local Security Checks	high
181189	Ubuntu 22.04 LTS / 23.04 : Linux kernel vulnerabilities (USN-6338-2)	Nessus	Ubuntu Local Security Checks	critical
180558	Ubuntu 23.04 : Linux kernel (Azure) vulnerabilities (USN-6344-1)	Nessus	Ubuntu Local Security Checks	critical
180511	Ubuntu 22.04 LTS / 23.04 : Linux kernel vulnerabilities (USN-6338-1)	Nessus	Ubuntu Local Security Checks	critical
178003	Debian DSA-5448-1 : linux - security update	Nessus	Debian Local Security Checks	high

Detections

Analytics

CVE-2023-32250

high

Tenable Plugins

high

high

high

high

high

high

critical

critical

critical

high