An issue was discovered in the Linux kernel before 6.3.4. fs/ksmbd/smb2pdu.c in ksmbd does not properly check the UserName value because it does not consider the address of security buffer, leading to an out-of-bounds read.

An update of the linux package has been released.

The remote Ubuntu 22.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-6339-4 advisory.

    It was discovered that the NTFS file system implementation in the Linux kernel did not properly validate     MFT flags in certain situations. An attacker could use this to construct a malicious NTFS image that, when     mounted and operated on, could cause a denial of service (system crash). (CVE-2022-48425)

    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)

    Yang Lan discovered that the GFS2 file system implementation in the Linux kernel could attempt to     dereference a null pointer in some situations. An attacker could use this to construct a malicious GFS2     image that, when mounted and operated on, could cause a denial of service (system crash). (CVE-2023-3212)

    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 20.04 LTS / 22.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-6339-3 advisory.

    It was discovered that the NTFS file system implementation in the Linux kernel did not properly validate     MFT flags in certain situations. An attacker could use this to construct a malicious NTFS image that, when     mounted and operated on, could cause a denial of service (system crash). (CVE-2022-48425)

    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)

    Yang Lan discovered that the GFS2 file system implementation in the Linux kernel could attempt to     dereference a null pointer in some situations. An attacker could use this to construct a malicious GFS2     image that, when mounted and operated on, could cause a denial of service (system crash). (CVE-2023-3212)

    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-6338-2 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 20.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-6339-2 advisory.

    It was discovered that the NTFS file system implementation in the Linux kernel did not properly validate     MFT flags in certain situations. An attacker could use this to construct a malicious NTFS image that, when     mounted and operated on, could cause a denial of service (system crash). (CVE-2022-48425)

    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)

    Yang Lan discovered that the GFS2 file system implementation in the Linux kernel could attempt to     dereference a null pointer in some situations. An attacker could use this to construct a malicious GFS2     image that, when mounted and operated on, could cause a denial of service (system crash). (CVE-2023-3212)

    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 host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-6351-1 advisory.

    It was discovered that the NTFS file system implementation in the Linux kernel did not properly validate     MFT flags in certain situations. An attacker could use this to construct a malicious NTFS image that, when     mounted and operated on, could cause a denial of service (system crash). (CVE-2022-48425)

    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)

    Yang Lan discovered that the GFS2 file system implementation in the Linux kernel could attempt to     dereference a null pointer in some situations. An attacker could use this to construct a malicious GFS2     image that, when mounted and operated on, could cause a denial of service (system crash). (CVE-2023-3212)

    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 20.04 LTS / 22.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-6350-1 advisory.

    It was discovered that the NTFS file system implementation in the Linux kernel did not properly validate     MFT flags in certain situations. An attacker could use this to construct a malicious NTFS image that, when     mounted and operated on, could cause a denial of service (system crash). (CVE-2022-48425)

    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)

    Yang Lan discovered that the GFS2 file system implementation in the Linux kernel could attempt to     dereference a null pointer in some situations. An attacker could use this to construct a malicious GFS2     image that, when mounted and operated on, could cause a denial of service (system crash). (CVE-2023-3212)

    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 Ubuntu 20.04 LTS / 22.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-6339-1 advisory.

    It was discovered that the NTFS file system implementation in the Linux kernel did not properly validate     MFT flags in certain situations. An attacker could use this to construct a malicious NTFS image that, when     mounted and operated on, could cause a denial of service (system crash). (CVE-2022-48425)

    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)

    Yang Lan discovered that the GFS2 file system implementation in the Linux kernel could attempt to     dereference a null pointer in some situations. An attacker could use this to construct a malicious GFS2     image that, when mounted and operated on, could cause a denial of service (system crash). (CVE-2023-3212)

    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.

ID	Name	Product	Family	Severity
209658	Photon OS 5.0: Linux PHSA-2023-5.0-0032	Nessus	PhotonOS Local Security Checks	critical
181561	Ubuntu 22.04 LTS : Linux kernel (Intel IoTG) vulnerabilities (USN-6339-4)	Nessus	Ubuntu Local Security Checks	critical
181248	Ubuntu 20.04 LTS / 22.04 LTS : Linux kernel vulnerabilities (USN-6339-3)	Nessus	Ubuntu Local Security Checks	critical
181189	Ubuntu 22.04 LTS / 23.04 : Linux kernel vulnerabilities (USN-6338-2)	Nessus	Ubuntu Local Security Checks	critical
181184	Ubuntu 20.04 LTS : Linux kernel vulnerabilities (USN-6339-2)	Nessus	Ubuntu Local Security Checks	critical
181005	Ubuntu 22.04 LTS : Linux kernel (GKE) vulnerabilities (USN-6351-1)	Nessus	Ubuntu Local Security Checks	critical
180561	Ubuntu 20.04 LTS / 22.04 LTS : Linux kernel vulnerabilities (USN-6350-1)	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
180510	Ubuntu 20.04 LTS / 22.04 LTS : Linux kernel vulnerabilities (USN-6339-1)	Nessus	Ubuntu Local Security Checks	critical

Detections

Analytics

CVE-2023-38428

critical

Tenable Plugins

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