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amazonAmazonALAS-2022-1570
HistoryMar 07, 2022 - 11:17 p.m.

Important: expat

2022-03-0723:17:00
alas.aws.amazon.com
35

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

7.5 High

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

0.014 Low

EPSS

Percentile

86.3%

JSON

Issue Overview:

An integer overflow was found in expat. The issue occurs in storeRawNames() by abusing the m_buffer expansion logic to allow allocations very close to INT_MAX and out-of-bounds heap writes. This flaw can cause a denial of service or potentially arbitrary code execution. (CVE-2022-25315)

Affected Packages:

expat

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

New Packages:

i686:  
    expat-debuginfo-2.1.0-12.26.amzn1.i686  
    expat-devel-2.1.0-12.26.amzn1.i686  
    expat-2.1.0-12.26.amzn1.i686  
  
src:  
    expat-2.1.0-12.26.amzn1.src  
  
x86_64:  
    expat-debuginfo-2.1.0-12.26.amzn1.x86_64  
    expat-devel-2.1.0-12.26.amzn1.x86_64  
    expat-2.1.0-12.26.amzn1.x86_64

Additional References

Red Hat: CVE-2022-25315

Mitre: CVE-2022-25315

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mageia 3
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centos 3
rocky 3
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9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

7.5 High

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

0.014 Low

EPSS

Percentile

86.3%

JSON
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