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amazonAmazonALAS2-2021-1712
HistoryOct 04, 2021 - 8:16 p.m.

Medium: kernel

2021-10-0420:16:00
alas.aws.amazon.com
35

7 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

4.4 Medium

CVSS2

Access Vector

LOCAL

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:L/AC:M/Au:N/C:P/I:P/A:P

JSON

Issue Overview:

A flaw was found in the Linux kernel. A race condition was discovered in the ext4 subsystem. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability. (CVE-2021-40490)

Affected Packages:

kernel

Issue Correction:
Run yum update kernel to update your system.

New Packages:

aarch64:  
    kernel-4.14.248-189.473.amzn2.aarch64  
    kernel-headers-4.14.248-189.473.amzn2.aarch64  
    kernel-debuginfo-common-aarch64-4.14.248-189.473.amzn2.aarch64  
    perf-4.14.248-189.473.amzn2.aarch64  
    perf-debuginfo-4.14.248-189.473.amzn2.aarch64  
    python-perf-4.14.248-189.473.amzn2.aarch64  
    python-perf-debuginfo-4.14.248-189.473.amzn2.aarch64  
    kernel-tools-4.14.248-189.473.amzn2.aarch64  
    kernel-tools-devel-4.14.248-189.473.amzn2.aarch64  
    kernel-tools-debuginfo-4.14.248-189.473.amzn2.aarch64  
    kernel-devel-4.14.248-189.473.amzn2.aarch64  
    kernel-debuginfo-4.14.248-189.473.amzn2.aarch64  
  
i686:  
    kernel-headers-4.14.248-189.473.amzn2.i686  
  
src:  
    kernel-4.14.248-189.473.amzn2.src  
  
x86_64:  
    kernel-4.14.248-189.473.amzn2.x86_64  
    kernel-headers-4.14.248-189.473.amzn2.x86_64  
    kernel-debuginfo-common-x86_64-4.14.248-189.473.amzn2.x86_64  
    perf-4.14.248-189.473.amzn2.x86_64  
    perf-debuginfo-4.14.248-189.473.amzn2.x86_64  
    python-perf-4.14.248-189.473.amzn2.x86_64  
    python-perf-debuginfo-4.14.248-189.473.amzn2.x86_64  
    kernel-tools-4.14.248-189.473.amzn2.x86_64  
    kernel-tools-devel-4.14.248-189.473.amzn2.x86_64  
    kernel-tools-debuginfo-4.14.248-189.473.amzn2.x86_64  
    kernel-devel-4.14.248-189.473.amzn2.x86_64  
    kernel-debuginfo-4.14.248-189.473.amzn2.x86_64  
    kernel-livepatch-4.14.248-189.473-1.0-0.amzn2.x86_64

Additional References

Red Hat: CVE-2021-40490

Mitre: CVE-2021-40490

OSVersionArchitecturePackageVersionFilename
Amazon Linux2aarch64kernel< 4.14.248-189.473.amzn2kernel-4.14.248-189.473.amzn2.aarch64.rpm
Amazon Linux2aarch64kernel-headers< 4.14.248-189.473.amzn2kernel-headers-4.14.248-189.473.amzn2.aarch64.rpm
Amazon Linux2aarch64kernel-debuginfo-common-aarch64< 4.14.248-189.473.amzn2kernel-debuginfo-common-aarch64-4.14.248-189.473.amzn2.aarch64.rpm
Amazon Linux2aarch64perf< 4.14.248-189.473.amzn2perf-4.14.248-189.473.amzn2.aarch64.rpm
Amazon Linux2aarch64perf-debuginfo< 4.14.248-189.473.amzn2perf-debuginfo-4.14.248-189.473.amzn2.aarch64.rpm
Amazon Linux2aarch64python-perf< 4.14.248-189.473.amzn2python-perf-4.14.248-189.473.amzn2.aarch64.rpm
Amazon Linux2aarch64python-perf-debuginfo< 4.14.248-189.473.amzn2python-perf-debuginfo-4.14.248-189.473.amzn2.aarch64.rpm
Amazon Linux2aarch64kernel-tools< 4.14.248-189.473.amzn2kernel-tools-4.14.248-189.473.amzn2.aarch64.rpm
Amazon Linux2aarch64kernel-tools-devel< 4.14.248-189.473.amzn2kernel-tools-devel-4.14.248-189.473.amzn2.aarch64.rpm
Amazon Linux2aarch64kernel-tools-debuginfo< 4.14.248-189.473.amzn2kernel-tools-debuginfo-4.14.248-189.473.amzn2.aarch64.rpm
Rows per page:
1-10 of 271

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7 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

4.4 Medium

CVSS2

Access Vector

LOCAL

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:L/AC:M/Au:N/C:P/I:P/A:P

JSON
Related for ALAS2-2021-1712
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