cve-2023-46813
Vulnerability from cvelistv5
Published
2023-10-27 00:00
Modified
2024-08-02 20:53
Severity ?
Summary
An issue was discovered in the Linux kernel before 6.5.9, exploitable by local users with userspace access to MMIO registers. Incorrect access checking in the #VC handler and instruction emulation of the SEV-ES emulation of MMIO accesses could lead to arbitrary write access to kernel memory (and thus privilege escalation). This depends on a race condition through which userspace can replace an instruction before the #VC handler reads it.
References
cve@mitre.orghttps://bugzilla.suse.com/show_bug.cgi?id=1212649Issue Tracking
cve@mitre.orghttps://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.5.9Mailing List, Patch
cve@mitre.orghttps://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=63e44bc52047f182601e7817da969a105aa1f721Mailing List, Patch
cve@mitre.orghttps://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=a37cd2a59d0cb270b1bba568fd3a3b8668b9d3baMailing List, Patch
cve@mitre.orghttps://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b9cb9c45583b911e0db71d09caa6b56469eb2bdfMailing List, Patch
cve@mitre.orghttps://lists.debian.org/debian-lts-announce/2024/01/msg00005.html
Impacted products
n/an/a
Show details on NVD website

To clipboard 

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