CVE-2023-4459

Related Files

Ubuntu Security Notice USN-6388-1

Posted Sep 20, 2023

Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6388-1 - Daniel Moghimi discovered that some Intel Processors did not properly clear microarchitectural state after speculative execution of various instructions. A local unprivileged user could use this to obtain to sensitive information. Yang Lan discovered that the GFS2 file system implementation in the Linux kernel could attempt to dereference a null pointer in some situations. An attacker could use this to construct a malicious GFS2 image that, when mounted and operated on, could cause a denial of service.

tags | advisory, denial of service, kernel, local

systems | linux, ubuntu

advisories | CVE-2022-40982, CVE-2023-3212, CVE-2023-32269, CVE-2023-3863, CVE-2023-40283, CVE-2023-4128, CVE-2023-4385, CVE-2023-4387, CVE-2023-4459

SHA-256 | c7b2ed8513e23fcfddfc331701b72291460bb91a9488a2abfbd0460416e7472e

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