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amazonAmazonALAS-2021-1457
HistoryJan 12, 2021 - 10:51 p.m.

Medium: bind

2021-01-1222:51:00
alas.aws.amazon.com
17

6.5 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

4 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

0.004 Low

EPSS

Percentile

74.1%

Issue Overview:

A flaw was found in bind. An assertion failure can occur when trying to verify a truncated response to a TSIG-signed request. The highest threat from this vulnerability is to system availability. (CVE-2020-8622)

Affected Packages:

bind

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

New Packages:

i686:  
    bind-debuginfo-9.8.2-0.68.rc1.85.amzn1.i686  
    bind-chroot-9.8.2-0.68.rc1.85.amzn1.i686  
    bind-9.8.2-0.68.rc1.85.amzn1.i686  
    bind-libs-9.8.2-0.68.rc1.85.amzn1.i686  
    bind-devel-9.8.2-0.68.rc1.85.amzn1.i686  
    bind-utils-9.8.2-0.68.rc1.85.amzn1.i686  
    bind-sdb-9.8.2-0.68.rc1.85.amzn1.i686  
  
src:  
    bind-9.8.2-0.68.rc1.85.amzn1.src  
  
x86_64:  
    bind-9.8.2-0.68.rc1.85.amzn1.x86_64  
    bind-libs-9.8.2-0.68.rc1.85.amzn1.x86_64  
    bind-devel-9.8.2-0.68.rc1.85.amzn1.x86_64  
    bind-debuginfo-9.8.2-0.68.rc1.85.amzn1.x86_64  
    bind-utils-9.8.2-0.68.rc1.85.amzn1.x86_64  
    bind-sdb-9.8.2-0.68.rc1.85.amzn1.x86_64  
    bind-chroot-9.8.2-0.68.rc1.85.amzn1.x86_64  

Additional References

Red Hat: CVE-2020-8622

Mitre: CVE-2020-8622

6.5 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

4 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

0.004 Low

EPSS

Percentile

74.1%