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amazonAmazonALAS2-2022-1826
HistoryJul 19, 2022 - 1:21 a.m.

Medium: libxml2

2022-07-1901:21:00
alas.aws.amazon.com
18

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

8.4 High

AI Score

Confidence

High

4.3 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

0.004 Low

EPSS

Percentile

73.6%

JSON

Issue Overview:

valid.c in libxml2 before 2.9.13 has a use-after-free of ID and IDREF attributes. (CVE-2022-23308)

Affected Packages:

libxml2

Note:

This advisory is applicable to Amazon Linux 2 (AL2) Core repository. Visit this FAQ section for the difference between AL2 Core and AL2 Extras advisories.

Issue Correction:
Run yum update libxml2 to update your system.

New Packages:

aarch64:  
    libxml2-2.9.1-6.amzn2.5.5.aarch64  
    libxml2-devel-2.9.1-6.amzn2.5.5.aarch64  
    libxml2-static-2.9.1-6.amzn2.5.5.aarch64  
    libxml2-python-2.9.1-6.amzn2.5.5.aarch64  
    libxml2-debuginfo-2.9.1-6.amzn2.5.5.aarch64  
  
i686:  
    libxml2-2.9.1-6.amzn2.5.5.i686  
    libxml2-devel-2.9.1-6.amzn2.5.5.i686  
    libxml2-static-2.9.1-6.amzn2.5.5.i686  
    libxml2-python-2.9.1-6.amzn2.5.5.i686  
    libxml2-debuginfo-2.9.1-6.amzn2.5.5.i686  
  
src:  
    libxml2-2.9.1-6.amzn2.5.5.src  
  
x86_64:  
    libxml2-2.9.1-6.amzn2.5.5.x86_64  
    libxml2-devel-2.9.1-6.amzn2.5.5.x86_64  
    libxml2-static-2.9.1-6.amzn2.5.5.x86_64  
    libxml2-python-2.9.1-6.amzn2.5.5.x86_64  
    libxml2-debuginfo-2.9.1-6.amzn2.5.5.x86_64

Additional References

Red Hat: CVE-2022-23308

Mitre: CVE-2022-23308

OSVersionArchitecturePackageVersionFilename
Amazon Linux2aarch64libxml2< 2.9.1-6.amzn2.5.5libxml2-2.9.1-6.amzn2.5.5.aarch64.rpm
Amazon Linux2aarch64libxml2-devel< 2.9.1-6.amzn2.5.5libxml2-devel-2.9.1-6.amzn2.5.5.aarch64.rpm
Amazon Linux2aarch64libxml2-static< 2.9.1-6.amzn2.5.5libxml2-static-2.9.1-6.amzn2.5.5.aarch64.rpm
Amazon Linux2aarch64libxml2-python< 2.9.1-6.amzn2.5.5libxml2-python-2.9.1-6.amzn2.5.5.aarch64.rpm
Amazon Linux2aarch64libxml2-debuginfo< 2.9.1-6.amzn2.5.5libxml2-debuginfo-2.9.1-6.amzn2.5.5.aarch64.rpm
Amazon Linux2i686libxml2< 2.9.1-6.amzn2.5.5libxml2-2.9.1-6.amzn2.5.5.i686.rpm
Amazon Linux2i686libxml2-devel< 2.9.1-6.amzn2.5.5libxml2-devel-2.9.1-6.amzn2.5.5.i686.rpm
Amazon Linux2i686libxml2-static< 2.9.1-6.amzn2.5.5libxml2-static-2.9.1-6.amzn2.5.5.i686.rpm
Amazon Linux2i686libxml2-python< 2.9.1-6.amzn2.5.5libxml2-python-2.9.1-6.amzn2.5.5.i686.rpm
Amazon Linux2i686libxml2-debuginfo< 2.9.1-6.amzn2.5.5libxml2-debuginfo-2.9.1-6.amzn2.5.5.i686.rpm
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7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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8.4 High

AI Score

Confidence

High

4.3 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

0.004 Low

EPSS

Percentile

73.6%

JSON
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