What’s Vulnerable › Vulnerabilities

CVE-2020-0543

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-06-15 · updated 2026-06-17
• Weakness: CWE-459

Description

Incomplete cleanup from specific special register read operations in some Intel(R) Processors may allow an authenticated user to potentially enable information disclosure via local access.

Affected products

• Canonical Ubuntu Linux: 12.04, 14.04, 16.04, 18.04, 19.10, 20.04
• Fedoraproject Fedora: 31, 32
• Intel Celeron 1000M: all versions
• Intel Celeron 1005M: all versions
• Intel Celeron 1007U: all versions
• Intel Celeron 1017U: all versions
• Intel Celeron 1019Y: all versions
• Intel Celeron 1020E: all versions
• Intel Celeron 1020M: all versions
• Intel Celeron 1037U: all versions
• Intel Celeron 1047Ue: all versions
• Intel Celeron 2955U: all versions
• Intel Celeron 2957U: all versions
• Intel Celeron 2970M: all versions
• Intel Celeron 2980U: all versions
• Intel Celeron 2981U: all versions
• Intel Celeron 3755U: all versions
• Intel Celeron 3765U: all versions
• Intel Celeron 3855U: all versions
• Intel Celeron 3865U: all versions
• Intel Celeron 3955U: all versions
• Intel Celeron 3965U: all versions
• Intel Celeron 3965Y: all versions
• Intel Celeron 5305U: all versions
• Intel Celeron 725C: all versions
• Intel Celeron 927Ue: all versions
• Intel Celeron G1610: all versions
• Intel Celeron G1610T: all versions
• Intel Celeron G1620: all versions
• Intel Celeron G1620T: all versions

References

• http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00025.html
• http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00024.html
• http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00031.html
• http://www.openwall.com/lists/oss-security/2020/07/14/5
• https://cert-portal.siemens.com/productcert/pdf/ssa-534763.pdf
• https://kc.mcafee.com/corporate/index?page=content&id=SB10318
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DT2VKDMQ3I37NBNJ256A2EXR7OJHXXKZ/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GRFC7UAPKAFFH5WX3AMDUBVHLKYQA2NZ/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NQZMOSHLTBBIECENNXA6M7DN5FEED4KI/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/T5OUM24ZC43G4IDT3JUCIHJTSDXJSK6Y/
• https://usn.ubuntu.com/4385-1/
• https://usn.ubuntu.com/4387-1/

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