Vulnerability Details : CVE-2021-33631
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.
Vulnerability category: Overflow
Products affected by CVE-2021-33631
- cpe:2.3:o:huawei:openeuler:*:*:*:*:-:-:*:*
- cpe:2.3:o:huawei:openeuler:*:*:*:*:-:-:*:*
- cpe:2.3:o:huawei:openeuler:*:*:*:*:-:linux:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-33631
0.04%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 8 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-33631
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
7.8
|
HIGH | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
1.8
|
5.9
|
NIST | 2024-01-26 |
5.5
|
MEDIUM | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
1.8
|
3.6
|
openEuler | 2024-01-18 |
CWE ids for CVE-2021-33631
-
The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.Assigned by:
- nvd@nist.gov (Primary)
- securities@openeuler.org (Secondary)
References for CVE-2021-33631
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http://www.openwall.com/lists/oss-security/2024/02/03/1
oss-security - Re: Kernel vulnerabilities CVE-2021-33630 & CVE-2021-33631
-
https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2024-1033
安全公告详情Vendor Advisory
-
http://www.openwall.com/lists/oss-security/2024/02/02/9
oss-security - Re: Kernel vulnerabilities CVE-2021-33630 & CVE-2021-33631
-
http://www.openwall.com/lists/oss-security/2024/01/31/3
oss-security - Re: FWD: Kernel vulnerabilities CVE-2021-33630 & CVE-2021-33631
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https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2024-1034
安全公告详情Vendor Advisory
-
http://www.openwall.com/lists/oss-security/2024/01/30/10
oss-security - Re: FWD: Kernel vulnerabilities CVE-2021-33630 & CVE-2021-33631
-
https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2024-1035
安全公告详情Vendor Advisory
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https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2024-1031
安全公告详情Vendor Advisory
-
http://www.openwall.com/lists/oss-security/2024/02/02/6
oss-security - Re: FWD: Kernel vulnerabilities CVE-2021-33630 & CVE-2021-33631
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http://www.openwall.com/lists/oss-security/2024/01/30/9
oss-security - Re: FWD: Kernel vulnerabilities CVE-2021-33630 & CVE-2021-33631
-
https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2024-1030
安全公告详情Vendor Advisory
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http://www.openwall.com/lists/oss-security/2024/01/31/2
oss-security - Re: FWD: Kernel vulnerabilities CVE-2021-33630 & CVE-2021-33631
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https://gitee.com/src-openeuler/kernel/pulls/1396
release 5.10.0-183.0.0 · Pull Request !1396 · src-openEuler/kernel - GiteeRelease Notes
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https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=5c099c4fdc438014d5893629e70a8ba934433ee8
ext4: fix kernel BUG in 'ext4_write_inline_data_end()' - kernel/git/torvalds/linux.git - Linux kernel source treePatch
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http://www.openwall.com/lists/oss-security/2024/01/30/3
oss-security - FWD: Kernel vulnerabilities CVE-2021-33630 & CVE-2021-33631
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https://gitee.com/src-openeuler/kernel/pulls/1389
release 4.19.90-2401.3.0 · Pull Request !1389 · src-openEuler/kernel - GiteeRelease Notes
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http://www.openwall.com/lists/oss-security/2024/01/30/5
oss-security - Re: FWD: Kernel vulnerabilities CVE-2021-33630 & CVE-2021-33631
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https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2024-1032
安全公告详情Vendor Advisory
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http://www.openwall.com/lists/oss-security/2024/01/30/4
oss-security - Re: FWD: Kernel vulnerabilities CVE-2021-33630 & CVE-2021-33631
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