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CVE-2023-52615

Status Candidate

Overview

In the Linux kernel, the following vulnerability has been resolved: hwrng: core - Fix page fault dead lock on mmap-ed hwrng There is a dead-lock in the hwrng device read path. This triggers when the user reads from /dev/hwrng into memory also mmap-ed from /dev/hwrng. The resulting page fault triggers a recursive read which then dead-locks. Fix this by using a stack buffer when calling copy_to_user.

Related Files

Ubuntu Security Notice USN-6766-3
Posted May 20, 2024
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6766-3 - It was discovered that the Open vSwitch implementation in the Linux kernel could overflow its stack during recursive action operations under certain conditions. A local attacker could use this to cause a denial of service. Sander Wiebing, Alvise de Faveri Tron, Herbert Bos, and Cristiano Giuffrida discovered that the Linux kernel mitigations for the initial Branch History Injection vulnerability were insufficient for Intel processors. A local attacker could potentially use this to expose sensitive information.

tags | advisory, denial of service, overflow, kernel, local
systems | linux, ubuntu
advisories | CVE-2022-0001, CVE-2023-52435, CVE-2023-52492, CVE-2023-52493, CVE-2023-52583, CVE-2023-52587, CVE-2023-52595, CVE-2023-52597, CVE-2023-52601, CVE-2023-52606, CVE-2023-52607, CVE-2023-52615, CVE-2023-52616, CVE-2023-52617
SHA-256 | 8016064a83bb8f7ec9c086ffc5f49d34292dc87c98d4d5e89a0f4a68cc0615bc
Ubuntu Security Notice USN-6774-1
Posted May 17, 2024
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6774-1 - Zheng Wang discovered that the Broadcom FullMAC WLAN driver in the Linux kernel contained a race condition during device removal, leading to a use- after-free vulnerability. A physically proximate attacker could possibly use this to cause a denial of service. Sander Wiebing, Alvise de Faveri Tron, Herbert Bos, and Cristiano Giuffrida discovered that the Linux kernel mitigations for the initial Branch History Injection vulnerability were insufficient for Intel processors. A local attacker could potentially use this to expose sensitive information.

tags | advisory, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2022-0001, CVE-2023-47233, CVE-2023-52601, CVE-2023-52602, CVE-2023-52615, CVE-2024-2201, CVE-2024-26614, CVE-2024-26635, CVE-2024-26801
SHA-256 | 879e950c4cc102e3739561be7468b79c78e99aa24cc7b8cac33139378491991e
Ubuntu Security Notice USN-6766-2
Posted May 16, 2024
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6766-2 - It was discovered that the Open vSwitch implementation in the Linux kernel could overflow its stack during recursive action operations under certain conditions. A local attacker could use this to cause a denial of service. Sander Wiebing, Alvise de Faveri Tron, Herbert Bos, and Cristiano Giuffrida discovered that the Linux kernel mitigations for the initial Branch History Injection vulnerability were insufficient for Intel processors. A local attacker could potentially use this to expose sensitive information.

tags | advisory, denial of service, overflow, kernel, local
systems | linux, ubuntu
advisories | CVE-2022-0001, CVE-2023-52435, CVE-2023-52492, CVE-2023-52493, CVE-2023-52583, CVE-2023-52587, CVE-2023-52595, CVE-2023-52597, CVE-2023-52601, CVE-2023-52606, CVE-2023-52607, CVE-2023-52615, CVE-2023-52616, CVE-2023-52617
SHA-256 | 0a8b72cb9ddc467a12013b3d726c7b1fa23dd695db2b2331e5af1ee0356bc9c9
Ubuntu Security Notice USN-6766-1
Posted May 9, 2024
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6766-1 - It was discovered that the Open vSwitch implementation in the Linux kernel could overflow its stack during recursive action operations under certain conditions. A local attacker could use this to cause a denial of service. Sander Wiebing, Alvise de Faveri Tron, Herbert Bos, and Cristiano Giuffrida discovered that the Linux kernel mitigations for the initial Branch History Injection vulnerability were insufficient for Intel processors. A local attacker could potentially use this to expose sensitive information.

tags | advisory, denial of service, overflow, kernel, local
systems | linux, ubuntu
advisories | CVE-2022-0001, CVE-2023-52435, CVE-2023-52492, CVE-2023-52493, CVE-2023-52583, CVE-2023-52587, CVE-2023-52595, CVE-2023-52597, CVE-2023-52601, CVE-2023-52606, CVE-2023-52607, CVE-2023-52615, CVE-2023-52616, CVE-2023-52617
SHA-256 | 7b9d401aae999b54dc79d9c6b860920ebcf6a9add3896d3e2fa03e35ea39ca96
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