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CVE-2022-42895

Status Candidate

Overview

There is an infoleak vulnerability in the Linux kernel's net/bluetooth/l2cap_core.c's l2cap_parse_conf_req function which can be used to leak kernel pointers remotely. We recommend upgrading past commit https://github.com/torvalds/linux/commit/b1a2cd50c0357f243b7435a732b4e62ba3157a2e https://www.google.com/url

Related Files

Ubuntu Security Notice USN-5927-1
Posted Mar 7, 2023
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5927-1 - It was discovered that the Upper Level Protocol subsystem in the Linux kernel did not properly handle sockets entering the LISTEN state in certain protocols, leading to 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 the System V IPC implementation in the Linux kernel did not properly handle large shared memory counts. A local attacker could use this to cause a denial of service.

tags | advisory, denial of service, arbitrary, kernel, local, protocol
systems | linux, ubuntu
advisories | CVE-2021-3669, CVE-2022-3424, CVE-2022-3521, CVE-2022-3545, CVE-2022-3628, CVE-2022-36280, CVE-2022-3640, CVE-2022-41218, CVE-2022-42328, CVE-2022-42895, CVE-2022-47929, CVE-2023-0045, CVE-2023-0266, CVE-2023-0394
SHA-256 | 267cb30398652c6d5e4143e7a564419a514df5b940ea487c998523a7f3bc146b
Ubuntu Security Notice USN-5926-1
Posted Mar 7, 2023
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5926-1 - Kirill Tkhai discovered that the XFS file system implementation in the Linux kernel did not calculate size correctly when pre-allocating space in some situations. A local attacker could use this to expose sensitive information. Lee Jones discovered that a use-after-free vulnerability existed in the Bluetooth implementation in the Linux kernel. A local attacker could use this to cause a denial of service or possibly execute arbitrary code.

tags | advisory, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2021-4155, CVE-2022-20566, CVE-2022-41858, CVE-2022-42895, CVE-2023-0045, CVE-2023-23559
SHA-256 | a41914777c5a10c7ff57a46d9d192b11651b4647733ebe5adb378ce5a4e9e4af
Ubuntu Security Notice USN-5925-1
Posted Mar 7, 2023
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5925-1 - It was discovered that the Upper Level Protocol subsystem in the Linux kernel did not properly handle sockets entering the LISTEN state in certain protocols, leading to 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 Kernel Connection Multiplexor socket implementation in the Linux kernel when releasing sockets in certain situations. A local attacker could use this to cause a denial of service.

tags | advisory, denial of service, arbitrary, kernel, local, protocol
systems | linux, ubuntu
advisories | CVE-2022-3521, CVE-2022-3545, CVE-2022-3628, CVE-2022-3640, CVE-2022-42328, CVE-2022-42895, CVE-2023-0461
SHA-256 | 0f0f2bc4ad90e2d21d62d6495742008cd217c7c1134c60f81916c696fb70393c
Ubuntu Security Notice USN-5920-1
Posted Mar 6, 2023
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5920-1 - It was discovered that the Upper Level Protocol subsystem in the Linux kernel did not properly handle sockets entering the LISTEN state in certain protocols, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. 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.

tags | advisory, denial of service, overflow, arbitrary, kernel, local, protocol
systems | linux, ubuntu
advisories | CVE-2022-3521, CVE-2022-3545, CVE-2022-3628, CVE-2022-3640, CVE-2022-42328, CVE-2022-42895, CVE-2022-4378, CVE-2023-0461
SHA-256 | fa694c2c44a7526df6be2583708cb52eba196281f52f0b24f1db9ebc844741ce
Ubuntu Security Notice USN-5918-1
Posted Mar 6, 2023
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5918-1 - It was discovered that the NFSD implementation in the Linux kernel did not properly handle some RPC messages, leading to a buffer overflow. A remote attacker could use this to cause a denial of service or possibly 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, remote, denial of service, overflow, arbitrary, kernel, vulnerability
systems | linux, ubuntu
advisories | CVE-2022-3628, CVE-2022-3640, CVE-2022-3643, CVE-2022-3649, CVE-2022-41849, CVE-2022-41850, CVE-2022-42895, CVE-2022-42896, CVE-2022-43945, CVE-2022-45934, CVE-2023-20928
SHA-256 | fe9d774b2a1b83bc9a5d670d7c1f5f7d626e82fb02c2fdc23e43a368a702bda0
Ubuntu Security Notice USN-5919-1
Posted Mar 6, 2023
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5919-1 - It was discovered that the Upper Level Protocol subsystem in the Linux kernel did not properly handle sockets entering the LISTEN state in certain protocols, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. 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.

tags | advisory, denial of service, overflow, arbitrary, kernel, local, protocol
systems | linux, ubuntu
advisories | CVE-2022-3521, CVE-2022-3545, CVE-2022-3628, CVE-2022-3640, CVE-2022-3646, CVE-2022-3649, CVE-2022-42895, CVE-2022-43750, CVE-2022-4378, CVE-2023-0461
SHA-256 | 12c473173b67e1a201f0b7cb2f92b1313fd809d477c14c7353f2507a27959ed9
Ubuntu Security Notice USN-5909-1
Posted Mar 3, 2023
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5909-1 - It was discovered that the Broadcom FullMAC USB WiFi driver in the Linux kernel did not properly perform bounds checking 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 or possibly execute arbitrary code. It was discovered that a use-after-free vulnerability existed in the Bluetooth stack in the Linux kernel. A local attacker could use this to cause a denial of service or possibly execute arbitrary code.

tags | advisory, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2022-3628, CVE-2022-3640, CVE-2022-3649, CVE-2022-41849, CVE-2022-41850, CVE-2022-42895, CVE-2023-20928
SHA-256 | 3684bc6ae8cfcedd8b426f304858f6f4f1a3a7ea03e497169ae1df78b6c478a3
Ubuntu Security Notice USN-5884-1
Posted Feb 23, 2023
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5884-1 - Kirill Tkhai discovered that the XFS file system implementation in the Linux kernel did not calculate size correctly when pre-allocating space in some situations. A local attacker could use this to expose sensitive information. Lee Jones discovered that a use-after-free vulnerability existed in the Bluetooth implementation in the Linux kernel. A local attacker could use this to cause a denial of service or possibly execute arbitrary code.

tags | advisory, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2021-4155, CVE-2022-20566, CVE-2022-41858, CVE-2022-42895, CVE-2023-0045, CVE-2023-23559
SHA-256 | 9fb79a1f43ccc6d619c96a07def2979ca05b8979050b2933267dc0bc2e17d747
Ubuntu Security Notice USN-5879-1
Posted Feb 16, 2023
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5879-1 - 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-2022-3619, CVE-2022-3628, CVE-2022-3640, CVE-2022-3643, CVE-2022-42895, CVE-2022-42896, CVE-2022-4378, CVE-2022-45934, CVE-2023-0590
SHA-256 | 46a1d05bd627a0c52a047b461aeac8ecd3fd54aa2c39e2976eea7e3dd05405ec
Ubuntu Security Notice USN-5878-1
Posted Feb 16, 2023
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5878-1 - 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. It was discovered that the Broadcom FullMAC USB WiFi driver in the Linux kernel did not properly perform bounds checking 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 or possibly execute arbitrary code.

tags | advisory, denial of service, arbitrary, kernel
systems | linux, ubuntu
advisories | CVE-2022-3619, CVE-2022-3628, CVE-2022-3640, CVE-2022-42895, CVE-2023-0590
SHA-256 | 384afda04827d52900d14bf80b4c4a2ee7bfd0452c20b884f2f53db9688ff932
Ubuntu Security Notice USN-5874-1
Posted Feb 16, 2023
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5874-1 - It was discovered that the Broadcom FullMAC USB WiFi driver in the Linux kernel did not properly perform bounds checking 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 or possibly execute arbitrary code. It was discovered that a use-after-free vulnerability existed in the Bluetooth stack in the Linux kernel. A local attacker could use this to cause a denial of service or possibly execute arbitrary code.

tags | advisory, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2022-3628, CVE-2022-3640, CVE-2022-3649, CVE-2022-41849, CVE-2022-41850, CVE-2022-42895, CVE-2023-20928
SHA-256 | 6d9f1fe0deb01df63942e808c4bb1eba061aca23dfd2703c1120d4fe167df272
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-5875-1
Posted Feb 16, 2023
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5875-1 - It was discovered that the NFSD implementation in the Linux kernel did not properly handle some RPC messages, leading to a buffer overflow. A remote attacker could use this to cause a denial of service or possibly 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, remote, denial of service, overflow, arbitrary, kernel, vulnerability
systems | linux, ubuntu
advisories | CVE-2022-3628, CVE-2022-3640, CVE-2022-3643, CVE-2022-3649, CVE-2022-41849, CVE-2022-41850, CVE-2022-42895, CVE-2022-42896, CVE-2022-43945, CVE-2022-45934, CVE-2023-20928
SHA-256 | 5144aea7e759431b262bdae7951064a9252ab627cb36ca751f44cd28c8f90188
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-5858-1
Posted Feb 10, 2023
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5858-1 - Davide Ornaghi discovered that the netfilter subsystem in the Linux kernel did not properly handle VLAN headers in some situations. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. It was discovered that the Netronome Ethernet driver 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.

tags | advisory, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2022-3545, CVE-2022-42895, CVE-2022-45934, CVE-2023-0179
SHA-256 | 5f05eb08ca982c765b038c8ff34ba022dc6c769e12eb23f7f5bc01dc292fe43f
Ubuntu Security Notice USN-5859-1
Posted Feb 10, 2023
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5859-1 - Davide Ornaghi discovered that the netfilter subsystem in the Linux kernel did not properly handle VLAN headers in some situations. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. It was discovered that the Netronome Ethernet driver 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.

tags | advisory, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2022-3545, CVE-2022-4139, CVE-2022-42895, CVE-2023-0179
SHA-256 | 24736893d69134f8c0d402d5d07ca7f1b3711c3a394ab082784aee41f9879906
Ubuntu Security Notice USN-5853-1
Posted Feb 10, 2023
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5853-1 - It was discovered that the Broadcom FullMAC USB WiFi driver in the Linux kernel did not properly perform bounds checking 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 or possibly execute arbitrary code. It was discovered that a use-after-free vulnerability existed in the Bluetooth stack in the Linux kernel. A local attacker could use this to cause a denial of service or possibly execute arbitrary code.

tags | advisory, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2022-3628, CVE-2022-3640, CVE-2022-3649, CVE-2022-41849, CVE-2022-41850, CVE-2022-42895
SHA-256 | 45f5382f94cc91b47ce4278fb2eee1a5e998241a202a5ef49e853ba90703ceed
Ubuntu Security Notice USN-5850-1
Posted Feb 10, 2023
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5850-1 - 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. It was discovered that the Broadcom FullMAC USB WiFi driver in the Linux kernel did not properly perform bounds checking 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 or possibly execute arbitrary code.

tags | advisory, denial of service, arbitrary, kernel
systems | linux, ubuntu
advisories | CVE-2022-3619, CVE-2022-3628, CVE-2022-3640, CVE-2022-42895, CVE-2023-0590
SHA-256 | f50a53d05385c1aa8549a065fff2b79b08f0366882912bfe06fc4251df296e41
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
Ubuntu Security Notice USN-5780-1
Posted Dec 15, 2022
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5780-1 - It was discovered that a memory leak existed in the IPv6 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, ubuntu
advisories | CVE-2022-3524, CVE-2022-3619, CVE-2022-3628, CVE-2022-42895, CVE-2022-42896
SHA-256 | d3337c47fd67d37b0b8264e04a3c11dfe3161b7482b2c34e5ffa8cab3510d21a
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