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amazonAmazonALAS-2023-1750
HistoryMay 25, 2023 - 5:41 p.m.

Important: kernel

2023-05-2517:41:00
alas.aws.amazon.com
10

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

4.3 Medium

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:L/AC:L/Au:S/C:P/I:P/A:P

0.0004 Low

EPSS

Percentile

5.3%

JSON

Issue Overview:

In the Linux kernel through 6.3.1, a use-after-free in Netfilter nf_tables when processing batch requests can be abused to perform arbitrary read and write operations on kernel memory. Unprivileged local users can obtain root privileges. This occurs because anonymous sets are mishandled. (CVE-2023-32233)

Affected Packages:

kernel

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

New Packages:

i686:  
    kernel-tools-4.14.314-164.539.amzn1.i686  
    perf-debuginfo-4.14.314-164.539.amzn1.i686  
    kernel-devel-4.14.314-164.539.amzn1.i686  
    kernel-headers-4.14.314-164.539.amzn1.i686  
    kernel-debuginfo-common-i686-4.14.314-164.539.amzn1.i686  
    kernel-debuginfo-4.14.314-164.539.amzn1.i686  
    kernel-tools-devel-4.14.314-164.539.amzn1.i686  
    kernel-4.14.314-164.539.amzn1.i686  
    kernel-tools-debuginfo-4.14.314-164.539.amzn1.i686  
    perf-4.14.314-164.539.amzn1.i686  
  
src:  
    kernel-4.14.314-164.539.amzn1.src  
  
x86_64:  
    kernel-4.14.314-164.539.amzn1.x86_64  
    kernel-debuginfo-common-x86_64-4.14.314-164.539.amzn1.x86_64  
    kernel-tools-debuginfo-4.14.314-164.539.amzn1.x86_64  
    perf-debuginfo-4.14.314-164.539.amzn1.x86_64  
    kernel-headers-4.14.314-164.539.amzn1.x86_64  
    kernel-tools-4.14.314-164.539.amzn1.x86_64  
    kernel-tools-devel-4.14.314-164.539.amzn1.x86_64  
    kernel-devel-4.14.314-164.539.amzn1.x86_64  
    kernel-debuginfo-4.14.314-164.539.amzn1.x86_64  
    perf-4.14.314-164.539.amzn1.x86_64

Additional References

Red Hat: CVE-2023-32233

Mitre: CVE-2023-32233

OSVersionArchitecturePackageVersionFilename
Amazon Linux1i686kernel-tools< 4.14.314-164.539.amzn1kernel-tools-4.14.314-164.539.amzn1.i686.rpm
Amazon Linux1i686perf-debuginfo< 4.14.314-164.539.amzn1perf-debuginfo-4.14.314-164.539.amzn1.i686.rpm
Amazon Linux1i686kernel-devel< 4.14.314-164.539.amzn1kernel-devel-4.14.314-164.539.amzn1.i686.rpm
Amazon Linux1i686kernel-headers< 4.14.314-164.539.amzn1kernel-headers-4.14.314-164.539.amzn1.i686.rpm
Amazon Linux1i686kernel-debuginfo-common-i686< 4.14.314-164.539.amzn1kernel-debuginfo-common-i686-4.14.314-164.539.amzn1.i686.rpm
Amazon Linux1i686kernel-debuginfo< 4.14.314-164.539.amzn1kernel-debuginfo-4.14.314-164.539.amzn1.i686.rpm
Amazon Linux1i686kernel-tools-devel< 4.14.314-164.539.amzn1kernel-tools-devel-4.14.314-164.539.amzn1.i686.rpm
Amazon Linux1i686kernel< 4.14.314-164.539.amzn1kernel-4.14.314-164.539.amzn1.i686.rpm
Amazon Linux1i686kernel-tools-debuginfo< 4.14.314-164.539.amzn1kernel-tools-debuginfo-4.14.314-164.539.amzn1.i686.rpm
Amazon Linux1i686perf< 4.14.314-164.539.amzn1perf-4.14.314-164.539.amzn1.i686.rpm
Rows per page:
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7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

4.3 Medium

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:L/AC:L/Au:S/C:P/I:P/A:P

0.0004 Low

EPSS

Percentile

5.3%

JSON
Related for ALAS-2023-1750
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