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amazonAmazonALAS-2021-1508
HistoryJul 08, 2021 - 6:38 p.m.

Important: bind

2021-07-0818:38:00
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

5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

0.05 Low

EPSS

Percentile

92.8%

JSON

Issue Overview:

A flaw was found in bind. The way DNAME records are processed may trigger the same RRset to the ANSWER section to be added more than once which causes an assertion check to fail. The highest threat from this flaw is to system availability. (CVE-2021-25215)

Affected Packages:

bind

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

New Packages:

i686:  
    bind-chroot-9.8.2-0.68.rc1.87.amzn1.i686  
    bind-devel-9.8.2-0.68.rc1.87.amzn1.i686  
    bind-libs-9.8.2-0.68.rc1.87.amzn1.i686  
    bind-sdb-9.8.2-0.68.rc1.87.amzn1.i686  
    bind-debuginfo-9.8.2-0.68.rc1.87.amzn1.i686  
    bind-9.8.2-0.68.rc1.87.amzn1.i686  
    bind-utils-9.8.2-0.68.rc1.87.amzn1.i686  
  
src:  
    bind-9.8.2-0.68.rc1.87.amzn1.src  
  
x86_64:  
    bind-chroot-9.8.2-0.68.rc1.87.amzn1.x86_64  
    bind-debuginfo-9.8.2-0.68.rc1.87.amzn1.x86_64  
    bind-9.8.2-0.68.rc1.87.amzn1.x86_64  
    bind-libs-9.8.2-0.68.rc1.87.amzn1.x86_64  
    bind-sdb-9.8.2-0.68.rc1.87.amzn1.x86_64  
    bind-devel-9.8.2-0.68.rc1.87.amzn1.x86_64  
    bind-utils-9.8.2-0.68.rc1.87.amzn1.x86_64

Additional References

Red Hat: CVE-2021-25215

Mitre: CVE-2021-25215

OSVersionArchitecturePackageVersionFilename
Amazon Linux1i686bind-chroot< 9.8.2-0.68.rc1.87.amzn1bind-chroot-9.8.2-0.68.rc1.87.amzn1.i686.rpm
Amazon Linux1i686bind-devel< 9.8.2-0.68.rc1.87.amzn1bind-devel-9.8.2-0.68.rc1.87.amzn1.i686.rpm
Amazon Linux1i686bind-libs< 9.8.2-0.68.rc1.87.amzn1bind-libs-9.8.2-0.68.rc1.87.amzn1.i686.rpm
Amazon Linux1i686bind-sdb< 9.8.2-0.68.rc1.87.amzn1bind-sdb-9.8.2-0.68.rc1.87.amzn1.i686.rpm
Amazon Linux1i686bind-debuginfo< 9.8.2-0.68.rc1.87.amzn1bind-debuginfo-9.8.2-0.68.rc1.87.amzn1.i686.rpm
Amazon Linux1i686bind< 9.8.2-0.68.rc1.87.amzn1bind-9.8.2-0.68.rc1.87.amzn1.i686.rpm
Amazon Linux1i686bind-utils< 9.8.2-0.68.rc1.87.amzn1bind-utils-9.8.2-0.68.rc1.87.amzn1.i686.rpm
Amazon Linux1x86_64bind-chroot< 9.8.2-0.68.rc1.87.amzn1bind-chroot-9.8.2-0.68.rc1.87.amzn1.x86_64.rpm
Amazon Linux1x86_64bind-debuginfo< 9.8.2-0.68.rc1.87.amzn1bind-debuginfo-9.8.2-0.68.rc1.87.amzn1.x86_64.rpm
Amazon Linux1x86_64bind< 9.8.2-0.68.rc1.87.amzn1bind-9.8.2-0.68.rc1.87.amzn1.x86_64.rpm
Rows per page:
1-10 of 141

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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

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

5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

0.05 Low

EPSS

Percentile

92.8%

JSON
Related for ALAS-2021-1508
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