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CVE-2023-38432

Status Candidate

Overview

An issue was discovered in the Linux kernel before 6.3.10. fs/smb/server/smb2misc.c in ksmbd does not validate the relationship between the command payload size and the RFC1002 length specification, leading to an out-of-bounds read.

Related Files

Ubuntu Security Notice USN-6520-1
Posted Nov 29, 2023
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6520-1 - Ivan D Barrera, Christopher Bednarz, Mustafa Ismail, and Shiraz Saleem discovered that the InfiniBand RDMA driver in the Linux kernel did not properly check for zero-length STAG or MR registration. A remote attacker could possibly use this to execute arbitrary code. Yu Hao and Weiteng Chen discovered that the Bluetooth HCI UART driver in the Linux kernel contained a race condition, leading to a null pointer dereference vulnerability. A local attacker could use this to cause a denial of service.

tags | advisory, remote, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2023-25775, CVE-2023-31083, CVE-2023-31085, CVE-2023-3772, CVE-2023-38430, CVE-2023-38432, CVE-2023-3863, CVE-2023-3865, CVE-2023-3866, CVE-2023-3867, CVE-2023-4132, CVE-2023-4134, CVE-2023-44466, CVE-2023-45871
SHA-256 | 819987813ef542ac72c57ea8cd7eca7b0438dc7b875007bd591418d3b8391709
Ubuntu Security Notice USN-6464-1
Posted Nov 13, 2023
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6464-1 - Yu Hao and Weiteng Chen discovered that the Bluetooth HCI UART driver in the Linux kernel contained a race condition, leading to a null pointer dereference vulnerability. A local attacker could use this to cause a denial of service. Lin Ma discovered that the Netlink Transformation subsystem in the Linux kernel contained a null pointer dereference vulnerability in some situations. A local privileged attacker could use this to cause a denial of service.

tags | advisory, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2023-31083, CVE-2023-3772, CVE-2023-38430, CVE-2023-38432, CVE-2023-3863, CVE-2023-3865, CVE-2023-3866, CVE-2023-3867, CVE-2023-4132, CVE-2023-4134, CVE-2023-44466
SHA-256 | 5d36859870429796a0315a6b5f9275dba8f9003e640e3bff729044abb499c962
Ubuntu Security Notice USN-6445-2
Posted Oct 24, 2023
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6445-2 - It was discovered that the IPv6 implementation in the Linux kernel contained a high rate of hash collisions in connection lookup table. A remote attacker could use this to cause a denial of service. Daniel Trujillo, Johannes Wikner, and Kaveh Razavi discovered that some AMD processors utilising speculative execution and branch prediction may allow unauthorised memory reads via a speculative side-channel attack. A local attacker could use this to expose sensitive information, including kernel memory.

tags | advisory, remote, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2023-1206, CVE-2023-20569, CVE-2023-2156, CVE-2023-3338, CVE-2023-34319, CVE-2023-38432, CVE-2023-3863, CVE-2023-3865, CVE-2023-3866, CVE-2023-4132, CVE-2023-4155, CVE-2023-4194, CVE-2023-4244, CVE-2023-4273
SHA-256 | 7161886f27ce432ad514954dd1b3c798e3d98a8a29d07d4592bcf71aae1d37df
Ubuntu Security Notice USN-6445-1
Posted Oct 20, 2023
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6445-1 - It was discovered that the IPv6 implementation in the Linux kernel contained a high rate of hash collisions in connection lookup table. A remote attacker could use this to cause a denial of service. Daniel Trujillo, Johannes Wikner, and Kaveh Razavi discovered that some AMD processors utilising speculative execution and branch prediction may allow unauthorised memory reads via a speculative side-channel attack. A local attacker could use this to expose sensitive information, including kernel memory.

tags | advisory, remote, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2023-1206, CVE-2023-20569, CVE-2023-2156, CVE-2023-3338, CVE-2023-34319, CVE-2023-38432, CVE-2023-3863, CVE-2023-3865, CVE-2023-3866, CVE-2023-4132, CVE-2023-4155, CVE-2023-4194, CVE-2023-4244, CVE-2023-4273
SHA-256 | e6b24dd74615cc6c00bd4c9686d9c6103de24a03be2c7b72a6caee0cd088dc72
Ubuntu Security Notice USN-6416-3
Posted Oct 20, 2023
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6416-3 - It was discovered that the IPv6 implementation in the Linux kernel contained a high rate of hash collisions in connection lookup table. A remote attacker could use this to cause a denial of service. Daniel Trujillo, Johannes Wikner, and Kaveh Razavi discovered that some AMD processors utilising speculative execution and branch prediction may allow unauthorised memory reads via a speculative side-channel attack. A local attacker could use this to expose sensitive information, including kernel memory.

tags | advisory, remote, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2023-1206, CVE-2023-20569, CVE-2023-2156, CVE-2023-3338, CVE-2023-38432, CVE-2023-3863, CVE-2023-3865, CVE-2023-3866, CVE-2023-4132, CVE-2023-4155, CVE-2023-4194, CVE-2023-4273, CVE-2023-44466
SHA-256 | 7a887816f9107b60df8541b3552c4aaff017ce7bcb38a20efdd9a941ee1a370e
Ubuntu Security Notice USN-6416-2
Posted Oct 6, 2023
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6416-2 - It was discovered that the IPv6 implementation in the Linux kernel contained a high rate of hash collisions in connection lookup table. A remote attacker could use this to cause a denial of service. Daniƫl Trujillo, Johannes Wikner, and Kaveh Razavi discovered that some AMD processors utilising speculative execution and branch prediction may allow unauthorised memory reads via a speculative side-channel attack. A local attacker could use this to expose sensitive information, including kernel memory.

tags | advisory, remote, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2023-1206, CVE-2023-20569, CVE-2023-2156, CVE-2023-3338, CVE-2023-38432, CVE-2023-3863, CVE-2023-3865, CVE-2023-3866, CVE-2023-4132, CVE-2023-4155, CVE-2023-4194, CVE-2023-4273, CVE-2023-44466
SHA-256 | b063e3f6be8c77181b424a0cfdc4405df776762ca5688f781a192b755ad403a0
Ubuntu Security Notice USN-6416-1
Posted Oct 5, 2023
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6416-1 - It was discovered that the IPv6 implementation in the Linux kernel contained a high rate of hash collisions in connection lookup table. A remote attacker could use this to cause a denial of service. Daniel Trujillo, Johannes Wikner, and Kaveh Razavi discovered that some AMD processors utilising speculative execution and branch prediction may allow unauthorised memory reads via a speculative side-channel attack. A local attacker could use this to expose sensitive information, including kernel memory.

tags | advisory, remote, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2023-1206, CVE-2023-20569, CVE-2023-2156, CVE-2023-3338, CVE-2023-38432, CVE-2023-3863, CVE-2023-3865, CVE-2023-3866, CVE-2023-4132, CVE-2023-4155, CVE-2023-4194, CVE-2023-4273, CVE-2023-44466
SHA-256 | 331f2ead28b7e52720b6f311fc3698392b6dd99793aaafc88fa16cf568162c17
Ubuntu Security Notice USN-6285-1
Posted Aug 14, 2023
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6285-1 - It was discovered that the NTFS file system implementation in the Linux kernel did not properly check buffer indexes in certain situations, leading to an out-of-bounds read vulnerability. A local attacker could possibly use this to expose sensitive information. Stonejiajia, Shir Tamari and Sagi Tzadik discovered that the OverlayFS implementation in the Ubuntu Linux kernel did not properly perform permission checks in certain situations. A local attacker could possibly use this to gain elevated privileges.

tags | advisory, kernel, local
systems | linux, ubuntu
advisories | CVE-2022-48502, CVE-2023-2640, CVE-2023-2898, CVE-2023-31248, CVE-2023-32629, CVE-2023-3390, CVE-2023-35001, CVE-2023-3609, CVE-2023-3610, CVE-2023-3611, CVE-2023-3776, CVE-2023-38430, CVE-2023-38432, CVE-2023-3863
SHA-256 | c7303f43ba77d16cc931ee8b1c0d2f16d00a561cedb386fa837bfed417cd59f3
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