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CVE-2022-47940

Status Candidate

Overview

An issue was discovered in ksmbd in the Linux kernel 5.15 through 5.18 before 5.18.18. fs/ksmbd/smb2pdu.c lacks length validation in the non-padding case in smb2_write.

Related Files

Ubuntu Security Notice USN-5876-1
Posted Feb 16, 2023
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5876-1 - It was discovered that a memory leak existed in the Unix domain socket implementation of the Linux kernel. A local attacker could use this to cause a denial of service. It was discovered that the Bluetooth HCI implementation in the Linux kernel did not properly deallocate memory in some situations. An attacker could possibly use this cause a denial of service.

tags | advisory, denial of service, kernel, local, memory leak
systems | linux, unix, ubuntu
advisories | CVE-2022-3543, CVE-2022-3619, CVE-2022-3623, CVE-2022-3628, CVE-2022-3640, CVE-2022-41849, CVE-2022-41850, CVE-2022-42895, CVE-2022-47940, CVE-2023-0590
SHA-256 | 760562465c198277a92ead486e6afad6b65783f51e912a299c15763afe0b30f3
Ubuntu Security Notice USN-5860-1
Posted Feb 10, 2023
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5860-1 - Kyle Zeng discovered that the sysctl implementation in the Linux kernel contained a stack-based buffer overflow. A local attacker could use this to cause a denial of service or execute arbitrary code. Tamás Koczka discovered that the Bluetooth L2CAP handshake implementation in the Linux kernel contained multiple use-after-free vulnerabilities. A physically proximate attacker could use this to cause a denial of service or possibly execute arbitrary code.

tags | advisory, denial of service, overflow, arbitrary, kernel, local, vulnerability
systems | linux, ubuntu
advisories | CVE-2022-3543, CVE-2022-3619, CVE-2022-3623, CVE-2022-3628, CVE-2022-3640, CVE-2022-3643, CVE-2022-41849, CVE-2022-41850, CVE-2022-42895, CVE-2022-42896, CVE-2022-4378, CVE-2022-45934, CVE-2022-47940, CVE-2023-0590
SHA-256 | ddfdd9987ae627c84773cb27f52fc662daaa72f400184df374fa400b21d58d13
Ubuntu Security Notice USN-5851-1
Posted Feb 10, 2023
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5851-1 - It was discovered that a memory leak existed in the Unix domain socket implementation of the Linux kernel. A local attacker could use this to cause a denial of service. It was discovered that the Bluetooth HCI implementation in the Linux kernel did not properly deallocate memory in some situations. An attacker could possibly use this cause a denial of service.

tags | advisory, denial of service, kernel, local, memory leak
systems | linux, unix, ubuntu
advisories | CVE-2022-3543, CVE-2022-3619, CVE-2022-3623, CVE-2022-3628, CVE-2022-3640, CVE-2022-41849, CVE-2022-41850, CVE-2022-42895, CVE-2022-47940, CVE-2023-0590
SHA-256 | 92ad50278dde36d5e8ed66f598969f2ef0aa529a9e66290f6e6053efea81d457
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