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amazonAmazonALAS2-2021-1614
HistoryMar 18, 2021 - 1:13 a.m.

Important: bind

2021-03-1801:13:00
alas.aws.amazon.com
15

8.1 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

8.8 High

AI Score

Confidence

High

6.8 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

0.187 Low

EPSS

Percentile

96.2%

Issue Overview:

A buffer overflow flaw was found in the SPNEGO implementation used by BIND. This flaw allows a remote attacker to cause the named process to crash or possibly perform remote code execution. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability. (CVE-2020-8625)

Affected Packages:

bind

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 bind to update your system.

New Packages:

aarch64:  
    bind-9.11.4-26.P2.amzn2.4.aarch64  
    bind-pkcs11-9.11.4-26.P2.amzn2.4.aarch64  
    bind-pkcs11-utils-9.11.4-26.P2.amzn2.4.aarch64  
    bind-pkcs11-libs-9.11.4-26.P2.amzn2.4.aarch64  
    bind-pkcs11-devel-9.11.4-26.P2.amzn2.4.aarch64  
    bind-sdb-9.11.4-26.P2.amzn2.4.aarch64  
    bind-libs-lite-9.11.4-26.P2.amzn2.4.aarch64  
    bind-libs-9.11.4-26.P2.amzn2.4.aarch64  
    bind-utils-9.11.4-26.P2.amzn2.4.aarch64  
    bind-devel-9.11.4-26.P2.amzn2.4.aarch64  
    bind-lite-devel-9.11.4-26.P2.amzn2.4.aarch64  
    bind-chroot-9.11.4-26.P2.amzn2.4.aarch64  
    bind-sdb-chroot-9.11.4-26.P2.amzn2.4.aarch64  
    bind-export-libs-9.11.4-26.P2.amzn2.4.aarch64  
    bind-export-devel-9.11.4-26.P2.amzn2.4.aarch64  
    bind-debuginfo-9.11.4-26.P2.amzn2.4.aarch64  
  
i686:  
    bind-9.11.4-26.P2.amzn2.4.i686  
    bind-pkcs11-9.11.4-26.P2.amzn2.4.i686  
    bind-pkcs11-utils-9.11.4-26.P2.amzn2.4.i686  
    bind-pkcs11-libs-9.11.4-26.P2.amzn2.4.i686  
    bind-pkcs11-devel-9.11.4-26.P2.amzn2.4.i686  
    bind-sdb-9.11.4-26.P2.amzn2.4.i686  
    bind-libs-lite-9.11.4-26.P2.amzn2.4.i686  
    bind-libs-9.11.4-26.P2.amzn2.4.i686  
    bind-utils-9.11.4-26.P2.amzn2.4.i686  
    bind-devel-9.11.4-26.P2.amzn2.4.i686  
    bind-lite-devel-9.11.4-26.P2.amzn2.4.i686  
    bind-chroot-9.11.4-26.P2.amzn2.4.i686  
    bind-sdb-chroot-9.11.4-26.P2.amzn2.4.i686  
    bind-export-libs-9.11.4-26.P2.amzn2.4.i686  
    bind-export-devel-9.11.4-26.P2.amzn2.4.i686  
    bind-debuginfo-9.11.4-26.P2.amzn2.4.i686  
  
noarch:  
    bind-license-9.11.4-26.P2.amzn2.4.noarch  
  
src:  
    bind-9.11.4-26.P2.amzn2.4.src  
  
x86_64:  
    bind-9.11.4-26.P2.amzn2.4.x86_64  
    bind-pkcs11-9.11.4-26.P2.amzn2.4.x86_64  
    bind-pkcs11-utils-9.11.4-26.P2.amzn2.4.x86_64  
    bind-pkcs11-libs-9.11.4-26.P2.amzn2.4.x86_64  
    bind-pkcs11-devel-9.11.4-26.P2.amzn2.4.x86_64  
    bind-sdb-9.11.4-26.P2.amzn2.4.x86_64  
    bind-libs-lite-9.11.4-26.P2.amzn2.4.x86_64  
    bind-libs-9.11.4-26.P2.amzn2.4.x86_64  
    bind-utils-9.11.4-26.P2.amzn2.4.x86_64  
    bind-devel-9.11.4-26.P2.amzn2.4.x86_64  
    bind-lite-devel-9.11.4-26.P2.amzn2.4.x86_64  
    bind-chroot-9.11.4-26.P2.amzn2.4.x86_64  
    bind-sdb-chroot-9.11.4-26.P2.amzn2.4.x86_64  
    bind-export-libs-9.11.4-26.P2.amzn2.4.x86_64  
    bind-export-devel-9.11.4-26.P2.amzn2.4.x86_64  
    bind-debuginfo-9.11.4-26.P2.amzn2.4.x86_64  

Additional References

Red Hat: CVE-2020-8625

Mitre: CVE-2020-8625

8.1 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

8.8 High

AI Score

Confidence

High

6.8 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

0.187 Low

EPSS

Percentile

96.2%