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amazonAmazonALAS2-2023-2112
HistoryJul 05, 2023 - 10:01 p.m.

Important: bind

2023-07-0522:01:00
alas.aws.amazon.com
11

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

7.9 High

AI Score

Confidence

High

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

0.001 Low

EPSS

Percentile

34.2%

Issue Overview:

A vulnerability was found in BIND. The effectiveness of the cache-cleaning algorithm used in named can be severely diminished by querying the resolver for specific RRsets in a certain order, effectively allowing the configured max-cache-size limit to exceed significantly. (CVE-2023-2828)

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.amzn2.13.1.aarch64  
    bind-pkcs11-9.11.4-26.P2.amzn2.13.1.aarch64  
    bind-pkcs11-utils-9.11.4-26.P2.amzn2.13.1.aarch64  
    bind-pkcs11-libs-9.11.4-26.P2.amzn2.13.1.aarch64  
    bind-pkcs11-devel-9.11.4-26.P2.amzn2.13.1.aarch64  
    bind-sdb-9.11.4-26.P2.amzn2.13.1.aarch64  
    bind-libs-lite-9.11.4-26.P2.amzn2.13.1.aarch64  
    bind-libs-9.11.4-26.P2.amzn2.13.1.aarch64  
    bind-utils-9.11.4-26.P2.amzn2.13.1.aarch64  
    bind-devel-9.11.4-26.P2.amzn2.13.1.aarch64  
    bind-lite-devel-9.11.4-26.P2.amzn2.13.1.aarch64  
    bind-chroot-9.11.4-26.P2.amzn2.13.1.aarch64  
    bind-sdb-chroot-9.11.4-26.P2.amzn2.13.1.aarch64  
    bind-export-libs-9.11.4-26.P2.amzn2.13.1.aarch64  
    bind-export-devel-9.11.4-26.P2.amzn2.13.1.aarch64  
    bind-debuginfo-9.11.4-26.P2.amzn2.13.1.aarch64  
  
i686:  
    bind-9.11.4-26.P2.amzn2.13.1.i686  
    bind-pkcs11-9.11.4-26.P2.amzn2.13.1.i686  
    bind-pkcs11-utils-9.11.4-26.P2.amzn2.13.1.i686  
    bind-pkcs11-libs-9.11.4-26.P2.amzn2.13.1.i686  
    bind-pkcs11-devel-9.11.4-26.P2.amzn2.13.1.i686  
    bind-sdb-9.11.4-26.P2.amzn2.13.1.i686  
    bind-libs-lite-9.11.4-26.P2.amzn2.13.1.i686  
    bind-libs-9.11.4-26.P2.amzn2.13.1.i686  
    bind-utils-9.11.4-26.P2.amzn2.13.1.i686  
    bind-devel-9.11.4-26.P2.amzn2.13.1.i686  
    bind-lite-devel-9.11.4-26.P2.amzn2.13.1.i686  
    bind-chroot-9.11.4-26.P2.amzn2.13.1.i686  
    bind-sdb-chroot-9.11.4-26.P2.amzn2.13.1.i686  
    bind-export-libs-9.11.4-26.P2.amzn2.13.1.i686  
    bind-export-devel-9.11.4-26.P2.amzn2.13.1.i686  
    bind-debuginfo-9.11.4-26.P2.amzn2.13.1.i686  
  
noarch:  
    bind-license-9.11.4-26.P2.amzn2.13.1.noarch  
  
src:  
    bind-9.11.4-26.P2.amzn2.13.1.src  
  
x86_64:  
    bind-9.11.4-26.P2.amzn2.13.1.x86_64  
    bind-pkcs11-9.11.4-26.P2.amzn2.13.1.x86_64  
    bind-pkcs11-utils-9.11.4-26.P2.amzn2.13.1.x86_64  
    bind-pkcs11-libs-9.11.4-26.P2.amzn2.13.1.x86_64  
    bind-pkcs11-devel-9.11.4-26.P2.amzn2.13.1.x86_64  
    bind-sdb-9.11.4-26.P2.amzn2.13.1.x86_64  
    bind-libs-lite-9.11.4-26.P2.amzn2.13.1.x86_64  
    bind-libs-9.11.4-26.P2.amzn2.13.1.x86_64  
    bind-utils-9.11.4-26.P2.amzn2.13.1.x86_64  
    bind-devel-9.11.4-26.P2.amzn2.13.1.x86_64  
    bind-lite-devel-9.11.4-26.P2.amzn2.13.1.x86_64  
    bind-chroot-9.11.4-26.P2.amzn2.13.1.x86_64  
    bind-sdb-chroot-9.11.4-26.P2.amzn2.13.1.x86_64  
    bind-export-libs-9.11.4-26.P2.amzn2.13.1.x86_64  
    bind-export-devel-9.11.4-26.P2.amzn2.13.1.x86_64  
    bind-debuginfo-9.11.4-26.P2.amzn2.13.1.x86_64  

Additional References

Red Hat: CVE-2023-2828

Mitre: CVE-2023-2828

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

7.9 High

AI Score

Confidence

High

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

0.001 Low

EPSS

Percentile

34.2%