CVE-2023-53671 is a vulnerability in the Linux kernel's SRCU (Sleepable Read-Copy Update) mechanism. It arises from an incorrect assumption that CPU 0 is always the boot CPU, leading to system hangs, particularly in kdump kernels on PowerPC architectures when maxcpus=1 is used. This vulnerability has a CVSS score of 5.5 (MEDIUM), indicating a local attack vector with low complexity, requiring local privileges, and resulting in high availability impact (denial of service). There is currently no evidence of active exploitation, and no public exploit code or significant community discussion has been observed.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 5.19, < 6.1.16CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | ||
>= 6.2, < 6.2.3CPE matchmatch criteria | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.