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amazonAmazonALAS2-2019-1187
HistoryApr 04, 2019 - 9:42 p.m.

Medium: bind

2019-04-0421:42:00
alas.aws.amazon.com
11

6.5 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

6.8 Medium

AI Score

Confidence

High

4 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

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

0.003 Low

EPSS

Percentile

70.3%

Issue Overview:

To provide fine-grained controls over the ability to use Dynamic DNS (DDNS) to update records in a zone, BIND 9 provides a feature called update-policy. Various rules can be configured to limit the types of updates that can be performed by a client, depending on the key used when sending the update request. Unfortunately, some rule types were not initially documented, and when documentation for them was added to the Administrator Reference Manual (ARM) in change #3112, the language that was added to the ARM at that time incorrectly described the behavior of two rule types, krb5-subdomain and ms-subdomain. This incorrect documentation could mislead operators into believing that policies they had configured were more restrictive than they actually were.(CVE-2018-5741)

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-9.9.4-73.amzn2.1.2.aarch64  
    bind-pkcs11-9.9.4-73.amzn2.1.2.aarch64  
    bind-pkcs11-utils-9.9.4-73.amzn2.1.2.aarch64  
    bind-pkcs11-libs-9.9.4-73.amzn2.1.2.aarch64  
    bind-pkcs11-devel-9.9.4-73.amzn2.1.2.aarch64  
    bind-sdb-9.9.4-73.amzn2.1.2.aarch64  
    bind-libs-lite-9.9.4-73.amzn2.1.2.aarch64  
    bind-libs-9.9.4-73.amzn2.1.2.aarch64  
    bind-utils-9.9.4-73.amzn2.1.2.aarch64  
    bind-devel-9.9.4-73.amzn2.1.2.aarch64  
    bind-lite-devel-9.9.4-73.amzn2.1.2.aarch64  
    bind-chroot-9.9.4-73.amzn2.1.2.aarch64  
    bind-sdb-chroot-9.9.4-73.amzn2.1.2.aarch64  
    bind-debuginfo-9.9.4-73.amzn2.1.2.aarch64  
  
i686:  
    bind-9.9.4-73.amzn2.1.2.i686  
    bind-pkcs11-9.9.4-73.amzn2.1.2.i686  
    bind-pkcs11-utils-9.9.4-73.amzn2.1.2.i686  
    bind-pkcs11-libs-9.9.4-73.amzn2.1.2.i686  
    bind-pkcs11-devel-9.9.4-73.amzn2.1.2.i686  
    bind-sdb-9.9.4-73.amzn2.1.2.i686  
    bind-libs-lite-9.9.4-73.amzn2.1.2.i686  
    bind-libs-9.9.4-73.amzn2.1.2.i686  
    bind-utils-9.9.4-73.amzn2.1.2.i686  
    bind-devel-9.9.4-73.amzn2.1.2.i686  
    bind-lite-devel-9.9.4-73.amzn2.1.2.i686  
    bind-chroot-9.9.4-73.amzn2.1.2.i686  
    bind-sdb-chroot-9.9.4-73.amzn2.1.2.i686  
    bind-debuginfo-9.9.4-73.amzn2.1.2.i686  
  
noarch:  
    bind-license-9.9.4-73.amzn2.1.2.noarch  
  
src:  
    bind-9.9.4-73.amzn2.1.2.src  
  
x86_64:  
    bind-9.9.4-73.amzn2.1.2.x86_64  
    bind-pkcs11-9.9.4-73.amzn2.1.2.x86_64  
    bind-pkcs11-utils-9.9.4-73.amzn2.1.2.x86_64  
    bind-pkcs11-libs-9.9.4-73.amzn2.1.2.x86_64  
    bind-pkcs11-devel-9.9.4-73.amzn2.1.2.x86_64  
    bind-sdb-9.9.4-73.amzn2.1.2.x86_64  
    bind-libs-lite-9.9.4-73.amzn2.1.2.x86_64  
    bind-libs-9.9.4-73.amzn2.1.2.x86_64  
    bind-utils-9.9.4-73.amzn2.1.2.x86_64  
    bind-devel-9.9.4-73.amzn2.1.2.x86_64  
    bind-lite-devel-9.9.4-73.amzn2.1.2.x86_64  
    bind-chroot-9.9.4-73.amzn2.1.2.x86_64  
    bind-sdb-chroot-9.9.4-73.amzn2.1.2.x86_64  
    bind-debuginfo-9.9.4-73.amzn2.1.2.x86_64  

Additional References

Red Hat: CVE-2018-5741

Mitre: CVE-2018-5741

6.5 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

6.8 Medium

AI Score

Confidence

High

4 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

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

0.003 Low

EPSS

Percentile

70.3%