CVE-2021-33631

Kernel crash in EXT4 filesystem

Description

Integer Overflow or Wraparound vulnerability in openEuler kernel on Linux (filesystem modules) allows Forced Integer Overflow.This issue affects openEuler kernel: from 4.19.90 before 4.19.90-2401.3, from 5.10.0-60.18.0 before 5.10.0-183.0.0.

Category

5.5
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.12%
Vendor Advisory openeuler.org Vendor Advisory openeuler.org Vendor Advisory openeuler.org Vendor Advisory openeuler.org Vendor Advisory openeuler.org Vendor Advisory openeuler.org
Affected: openEuler kernel
Published at:
Updated at:

References

Link Tags
https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2024-1030 vendor advisory
https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2024-1031 vendor advisory
https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2024-1032 vendor advisory
https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2024-1033 vendor advisory
https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2024-1034 vendor advisory
https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2024-1035 vendor advisory
https://gitee.com/src-openeuler/kernel/pulls/1389 release notes
https://gitee.com/src-openeuler/kernel/pulls/1396 release notes
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=5c099c4fdc438014d5893629e70a8ba934433ee8 patch
http://www.openwall.com/lists/oss-security/2024/01/30/3
http://www.openwall.com/lists/oss-security/2024/01/30/4
http://www.openwall.com/lists/oss-security/2024/01/30/5
http://www.openwall.com/lists/oss-security/2024/01/30/9
http://www.openwall.com/lists/oss-security/2024/01/30/10
http://www.openwall.com/lists/oss-security/2024/01/31/3
http://www.openwall.com/lists/oss-security/2024/01/31/2
http://www.openwall.com/lists/oss-security/2024/02/02/6
http://www.openwall.com/lists/oss-security/2024/02/02/9
http://www.openwall.com/lists/oss-security/2024/02/03/1

Frequently Asked Questions

What is the severity of CVE-2021-33631?
CVE-2021-33631 has been scored as a medium severity vulnerability.
How to fix CVE-2021-33631?
To fix CVE-2021-33631, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-33631 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-33631 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-33631?
CVE-2021-33631 affects openEuler kernel.
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