CVE-2022-48732
HighIn the Linux kernel, the following vulnerability has been resolved: drm/nouveau: fix off by one in BIOS boundary checking Bounds checking when parsing init scripts embedded in the BIOS reject access to the last byte. This causes driver initialization to fail on Apple eMac's with GeForce 2 MX GPUs, leaving the system with no working console. This is probably only seen on OpenFirmware machines like PowerPC Macs because the BIOS image provided by OF is only the used parts of the ROM, not a power-of-two blocks read from PCI directly so PCs always have empty bytes at the end that are never accessed.
CVSS 3.1 score
7.8
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness type
CWE-193CVE-2022-48732 is classified as CWE-193
See CWE-193 on MITRE CWE for full details on this weakness type.
References
The following references provide additional information about CVE-2022-48732 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.
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PatchKernel patch commithttps://git.kernel.org/stable/c/1b777d4d9e383d2744fc9b3a09af6ec1893c8b1a
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PatchKernel patch commithttps://git.kernel.org/stable/c/909d3ec1bf9f0ec534bfc081b77c0836fea7b0e2
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PatchKernel patch commithttps://git.kernel.org/stable/c/acc887ba88333f5fec49631f12d8cc7ebd95781c
Frequently asked questions
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What is CVE-2022-48732?
CVE-2022-48732 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10 . CVE-2022-48732 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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What is the CVSS score for CVE-2022-48732?
CVE-2022-48732 has a CVSS score of 7.8 out of 10, rated High severity (CVSS 3.1). The vector string is
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. -
Is there a patch available for CVE-2022-48732?
No patch is currently available for CVE-2022-48732. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
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Is CVE-2022-48732 actively exploited?
No — CVE-2022-48732 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.