CVE-2020-12464
Mediumusb_sg_cancel in drivers/usb/core/message.c in the Linux kernel before 5.6.8 has a use-after-free because a transfer occurs without a reference, aka CID-056ad39ee925.
CVSS 3.1 score
6.7
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Weakness type
CWE-416CVE-2020-12464 is a Use After Free vulnerability
What is Use After Free?
The product references memory after it has been freed, which may cause it to crash, use unexpected values, or execute code. Learn more on MITRE CWE
References
The following references provide additional information about CVE-2020-12464 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.
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Third Party Advisory
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Release Notes Vendor Advisory
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Third Party Advisory
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Mailing List Third Party Advisory
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Third Party Advisory
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Exploit Vendor Advisory
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Third Party Advisory
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Ubuntu Securityhttps://usn.ubuntu.com/4387-1/Third Party Advisory
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Ubuntu Securityhttps://usn.ubuntu.com/4388-1/Third Party Advisory
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Ubuntu Securityhttps://usn.ubuntu.com/4389-1/Third Party Advisory
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Ubuntu Securityhttps://usn.ubuntu.com/4390-1/Third Party Advisory
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Ubuntu Securityhttps://usn.ubuntu.com/4391-1/Third Party Advisory VDB Entry
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Debian Securityhttps://www.debian.org/security/2020/dsa-4698Third Party Advisory VDB Entry
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Debian Securityhttps://www.debian.org/security/2020/dsa-4699Third Party Advisory VDB Entry
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PatchKernel patch commithttps://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=056ad39ee9253873522f6469c3364964a322912b
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PatchKernel patch commithttps://github.com/torvalds/linux/commit/056ad39ee9253873522f6469c3364964a322912b
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PatchKernel patch commithttps://patchwork.kernel.org/patch/11463781/
Frequently asked questions
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What is CVE-2020-12464?
CVE-2020-12464 is a Medium severity Linux kernel vulnerability with a CVSS score of 6.7 out of 10 , classified as an Use After Free flaw (CWE-416) . CVE-2020-12464 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-2020-12464?
CVE-2020-12464 has a CVSS score of 6.7 out of 10, rated Medium severity (CVSS 3.1). The vector string is
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H. -
Is there a patch available for CVE-2020-12464?
No patch is currently available for CVE-2020-12464. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
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Is CVE-2020-12464 actively exploited?
No — CVE-2020-12464 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 Use After Free (CWE-416)?
The product references memory after it has been freed, which may cause it to crash, use unexpected values, or execute code. View CWE-416 on MITRE CWE →