CVE-2020-12655
MediumAn issue was discovered in xfs_agf_verify in fs/xfs/libxfs/xfs_alloc.c in the Linux kernel through 5.6.10. Attackers may trigger a sync of excessive duration via an XFS v5 image with crafted metadata, aka CID-d0c7feaf8767.
CVSS 3.1 score
5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness type
CWE-835CVE-2020-12655 is a Infinite Loop vulnerability
What is Infinite Loop?
The product contains an iteration that does not exit even when it should. Learn more on MITRE CWE
References
The following references provide additional information about CVE-2020-12655 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.
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Ubuntu Securityhttps://usn.ubuntu.com/4465-1/
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Ubuntu Securityhttps://usn.ubuntu.com/4483-1/
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Ubuntu Securityhttps://usn.ubuntu.com/4485-1/
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PatchKernel patch commithttps://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d0c7feaf87678371c2c09b3709400be416b2dc62
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PatchKernel patch commithttps://github.com/torvalds/linux/commit/d0c7feaf87678371c2c09b3709400be416b2dc62
Frequently asked questions
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What is CVE-2020-12655?
CVE-2020-12655 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 , classified as an Infinite Loop flaw (CWE-835) . CVE-2020-12655 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-2020-12655?
CVE-2020-12655 has a CVSS score of 5.5 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:N/I:N/A:H. -
Is there a patch available for CVE-2020-12655?
No patch is currently available for CVE-2020-12655. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
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Is CVE-2020-12655 actively exploited?
No — CVE-2020-12655 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 Infinite Loop (CWE-835)?
The product contains an iteration that does not exit even when it should. View CWE-835 on MITRE CWE →