CVE-2021-47478
MediumIn the Linux kernel, the following vulnerability has been resolved: isofs: Fix out of bound access for corrupted isofs image When isofs image is suitably corrupted isofs_read_inode() can read data beyond the end of buffer. Sanity-check the directory entry length before using it.
CVSS 3.1 score
5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Weakness type
CWE-125CVE-2021-47478 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
Affected versions
Linux kernel versions
2.6.12
and later are affected. Fixed in
4.4.292,
4.9.290,
4.14.255,
4.19.217,
5.4.159,
5.10.79,
5.14.18,
5.15.2,
5.16
and their respective stable series.
References
9 total-
Patch
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Patch
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Patch
Frequently asked questions
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What is CVE-2021-47478?
CVE-2021-47478 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 , classified as an Out-of-bounds Read flaw (CWE-125) . It affects Linux kernel versions from 2.6.12 onward and has been patched in 4.4.292, 4.9.290, 4.14.255 and others. CVE-2021-47478 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-2021-47478?
CVE-2021-47478 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:H/I:N/A:N. -
Is there a patch available for CVE-2021-47478?
Yes. CVE-2021-47478 has been patched. Fixed versions include 4.4.292, 4.9.290, 4.14.255 and others. If you are running Linux kernel 2.6.12 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2021-47478 actively exploited?
No. CVE-2021-47478 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.