CVE-2018-20854
HighAn issue was discovered in the Linux kernel before 4.20. drivers/phy/mscc/phy-ocelot-serdes.c has an off-by-one error with a resultant ctrl->phys out-of-bounds read.
CVSS 3.0 score
7.8
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness type
CWE-125CVE-2018-20854 is a Out-of-bounds Read vulnerability
What is Out-of-bounds Read?
The product reads data past the end or before the beginning of the intended buffer. Learn more on MITRE CWE
References
The following references provide additional information about CVE-2018-20854 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/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=6acb47d1a318e5b3b7115354ebc4ea060c59d3a1
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PatchKernel patch commithttps://github.com/torvalds/linux/commit/6acb47d1a318e5b3b7115354ebc4ea060c59d3a1
Frequently asked questions
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What is CVE-2018-20854?
CVE-2018-20854 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10 , classified as an Out-of-bounds Read flaw (CWE-125) . CVE-2018-20854 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-2018-20854?
CVE-2018-20854 has a CVSS score of 7.8 out of 10, rated High severity (CVSS 3.0). The vector string is
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. -
Is there a patch available for CVE-2018-20854?
No patch is currently available for CVE-2018-20854. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
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Is CVE-2018-20854 actively exploited?
No — CVE-2018-20854 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
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What is Out-of-bounds Read (CWE-125)?
The product reads data past the end or before the beginning of the intended buffer. View CWE-125 on MITRE CWE →