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CVE-2023-45863

Status Candidate

Overview

An issue was discovered in lib/kobject.c in the Linux kernel before 6.2.3. With root access, an attacker can trigger a race condition that results in a fill_kobj_path out-of-bounds write.

Related Files

Ubuntu Security Notice USN-6625-3
Posted Feb 20, 2024
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6625-3 - Marek Marczykowski-Górecki discovered that the Xen event channel infrastructure implementation in the Linux kernel contained a race condition. An attacker in a guest VM could possibly use this to cause a denial of service. Zheng Wang discovered a use-after-free in the Renesas Ethernet AVB driver in the Linux kernel during device removal. A privileged attacker could use this to cause a denial of service.

tags | advisory, denial of service, kernel
systems | linux, ubuntu
advisories | CVE-2023-34324, CVE-2023-35827, CVE-2023-45863, CVE-2023-46343
SHA-256 | 52bdeffe5f0a9bcabf5888bdf230cc21b6b378f00b6361fdcb2347a717f725ef
Ubuntu Security Notice USN-6625-2
Posted Feb 9, 2024
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6625-2 - Marek Marczykowski-Górecki discovered that the Xen event channel infrastructure implementation in the Linux kernel contained a race condition. An attacker in a guest VM could possibly use this to cause a denial of service. Zheng Wang discovered a use-after-free in the Renesas Ethernet AVB driver in the Linux kernel during device removal. A privileged attacker could use this to cause a denial of service.

tags | advisory, denial of service, kernel
systems | linux, ubuntu
advisories | CVE-2023-34324, CVE-2023-35827, CVE-2023-45863, CVE-2023-46343
SHA-256 | b66fd333f93de3d51bd80224f8e2d3a19cbfc05e73e64ee252cbdbc53d94990c
Ubuntu Security Notice USN-6625-1
Posted Feb 8, 2024
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6625-1 - Marek Marczykowski-Górecki discovered that the Xen event channel infrastructure implementation in the Linux kernel contained a race condition. An attacker in a guest VM could possibly use this to cause a denial of service. Zheng Wang discovered a use-after-free in the Renesas Ethernet AVB driver in the Linux kernel during device removal. A privileged attacker could use this to cause a denial of service.

tags | advisory, denial of service, kernel
systems | linux, ubuntu
advisories | CVE-2023-34324, CVE-2023-35827, CVE-2023-45863, CVE-2023-46343
SHA-256 | f216969201e4323ce6545b98d9b1f08db39bd8c3f06097ee0d2bd0d95e8ad152
Ubuntu Security Notice USN-6604-2
Posted Jan 30, 2024
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6604-2 - It was discovered that the ASUS HID driver in the Linux kernel did not properly handle device removal, leading to a use-after-free vulnerability. A local attacker with physical access could plug in a specially crafted USB device to cause a denial of service. Jana Hofmann, Emanuele Vannacci, Cedric Fournet, Boris Kopf, and Oleksii Oleksenko discovered that some AMD processors could leak stale data from division operations in certain situations. A local attacker could possibly use this to expose sensitive information.

tags | advisory, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2023-1079, CVE-2023-20588, CVE-2023-45863, CVE-2023-6606, CVE-2023-6931, CVE-2023-6932
SHA-256 | 87adb9a0dd630857bb46668b561ed587d03265f1d69126841b1f12420169e7bc
Ubuntu Security Notice USN-6604-1
Posted Jan 26, 2024
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6604-1 - It was discovered that the ASUS HID driver in the Linux kernel did not properly handle device removal, leading to a use-after-free vulnerability. A local attacker with physical access could plug in a specially crafted USB device to cause a denial of service. Jana Hofmann, Emanuele Vannacci, Cedric Fournet, Boris Kopf, and Oleksii Oleksenko discovered that some AMD processors could leak stale data from division operations in certain situations. A local attacker could possibly use this to expose sensitive information.

tags | advisory, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2023-1079, CVE-2023-20588, CVE-2023-45863, CVE-2023-6606, CVE-2023-6931, CVE-2023-6932
SHA-256 | d17c6353365258970841d80fc94ccc64beed6a1122b15a1bc1be29121160ed39
Ubuntu Security Notice USN-6602-1
Posted Jan 26, 2024
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6602-1 - Jana Hofmann, Emanuele Vannacci, Cedric Fournet, Boris Kopf, and Oleksii Oleksenko discovered that some AMD processors could leak stale data from division operations in certain situations. A local attacker could possibly use this to expose sensitive information. It was discovered that a race condition existed in the Linux kernel when performing operations with kernel objects, leading to an out-of-bounds write. A local attacker could use this to cause a denial of service or execute arbitrary code.

tags | advisory, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2023-20588, CVE-2023-45863, CVE-2023-6606, CVE-2023-6931, CVE-2023-6932
SHA-256 | e4ea46e063ed7320c58795d9803e3ac6d7fa5f331537b1801175adb5167bb09e
Ubuntu Security Notice USN-6577-1
Posted Jan 11, 2024
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6577-1 - Jana Hofmann, Emanuele Vannacci, Cedric Fournet, Boris Kopf, and Oleksii Oleksenko discovered that some AMD processors could leak stale data from division operations in certain situations. A local attacker could possibly use this to expose sensitive information. It was discovered that a race condition existed in the Linux kernel when performing operations with kernel objects, leading to an out-of-bounds write. A local attacker could use this to cause a denial of service or execute arbitrary code.

tags | advisory, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2023-20588, CVE-2023-45863
SHA-256 | f5c75748cbd05864595b53a3d62429463f197d9429e3dc98c4eef18615631d48
Debian Security Advisory 5594-1
Posted Jan 3, 2024
Authored by Debian | Site debian.org

Debian Linux Security Advisory 5594-1 - Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of service or information leaks.

tags | advisory, denial of service, kernel, vulnerability
systems | linux, debian
advisories | CVE-2021-44879, CVE-2023-25775, CVE-2023-34324, CVE-2023-35827, CVE-2023-45863, CVE-2023-46813, CVE-2023-46862, CVE-2023-5178, CVE-2023-51780, CVE-2023-51781, CVE-2023-51782, CVE-2023-5197, CVE-2023-5717, CVE-2023-6121
SHA-256 | 14c6c74cd19f5de7ddf98f535462c89656d00f4606e765c1a9e334df63a6e08f
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