CVE-2019-19602
Mediumfpregs_state_valid in arch/x86/include/asm/fpu/internal.h in the Linux kernel before 5.4.2, when GCC 9 is used, allows context-dependent attackers to cause a denial of service (memory corruption) or possibly have unspecified other impact because of incorrect fpu_fpregs_owner_ctx caching, as demonstrated by mishandling of signal-based non-cooperative preemption in Go 1.14 prereleases on amd64, aka CID-59c4bd853abc.
CVSS 3.1 score
6.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L
Weakness type
CWE-119CVE-2019-19602 is a Buffer Overflow vulnerability
What is Buffer Overflow?
The product performs operations on a memory buffer but reads or writes outside its intended boundaries. Learn more on MITRE CWE
References
The following references provide additional information about CVE-2019-19602 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.
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Issue Tracking Third Party Advisory
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Release Notes Vendor Advisory
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Issue Tracking Third Party Advisory
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Third Party Advisory
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Ubuntu Securityhttps://usn.ubuntu.com/4284-1/Third Party Advisory
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PatchKernel patch commithttps://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=59c4bd853abcea95eccc167a7d7fd5f1a5f47b98
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PatchKernel patch commithttps://github.com/torvalds/linux/commit/59c4bd853abcea95eccc167a7d7fd5f1a5f47b98
Frequently asked questions
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What is CVE-2019-19602?
CVE-2019-19602 is a Medium severity Linux kernel vulnerability with a CVSS score of 6.1 out of 10 , classified as a Buffer Overflow flaw (CWE-119) . CVE-2019-19602 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-2019-19602?
CVE-2019-19602 has a CVSS score of 6.1 out of 10, rated Medium severity (CVSS 3.1). The vector string is
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L. -
Is there a patch available for CVE-2019-19602?
No patch is currently available for CVE-2019-19602. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
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Is CVE-2019-19602 actively exploited?
No — CVE-2019-19602 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 Buffer Overflow (CWE-119)?
The product performs operations on a memory buffer but reads or writes outside its intended boundaries. View CWE-119 on MITRE CWE →