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CVE-2023-38426

Status Candidate

Overview

An issue was discovered in the Linux kernel before 6.3.4. ksmbd has an out-of-bounds read in smb2_find_context_vals when create_context's name_len is larger than the tag length.

Related Files

Ubuntu Security Notice USN-6338-2
Posted Sep 11, 2023
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6338-2 - 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 or possibly execute arbitrary code. 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.

tags | advisory, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2023-21255, CVE-2023-2898, CVE-2023-31084, CVE-2023-32247, CVE-2023-32250, CVE-2023-32257, CVE-2023-32258, CVE-2023-38426, CVE-2023-38429
SHA-256 | 50b456251740b82bc0857a11e8461e784721fcfb5ced8b3aa4626d01c1868471
Ubuntu Security Notice USN-6344-1
Posted Sep 6, 2023
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6344-1 - 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 or possibly execute arbitrary code. 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.

tags | advisory, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2023-21255, CVE-2023-2898, CVE-2023-31084, CVE-2023-32247, CVE-2023-32250, CVE-2023-32257, CVE-2023-32258, CVE-2023-38426, CVE-2023-38429
SHA-256 | b07fb1eb36412b00d7edf10557e2e523d0814242a2dfb475128c7625f4e5a6ce
Ubuntu Security Notice USN-6338-1
Posted Sep 6, 2023
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6338-1 - 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 or possibly execute arbitrary code. 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.

tags | advisory, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2023-21255, CVE-2023-2898, CVE-2023-31084, CVE-2023-32247, CVE-2023-32250, CVE-2023-32257, CVE-2023-32258, CVE-2023-38426, CVE-2023-38429
SHA-256 | 2ee8f4f89be7aba20da789b2af9e753495f65e05ad1798b5dda1c97c9e1c8903
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