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amazonAmazonALAS2-2023-1915
HistoryJan 18, 2023 - 12:17 a.m.

Important: krb5

2023-01-1800:17:00
alas.aws.amazon.com
50
krb5
integer overflow
pac parsing
cve-2022-42898
update.

8.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

9.5 High

AI Score

Confidence

High

0.005 Low

EPSS

Percentile

76.3%

JSON

Issue Overview:

Integer overflow vulnerabilities in PAC parsing (CVE-2022-42898)

Affected Packages:

krb5

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 krb5 to update your system.

New Packages:

aarch64:  
    krb5-devel-1.15.1-55.amzn2.2.5.aarch64  
    krb5-libs-1.15.1-55.amzn2.2.5.aarch64  
    krb5-server-1.15.1-55.amzn2.2.5.aarch64  
    krb5-server-ldap-1.15.1-55.amzn2.2.5.aarch64  
    krb5-workstation-1.15.1-55.amzn2.2.5.aarch64  
    krb5-pkinit-1.15.1-55.amzn2.2.5.aarch64  
    libkadm5-1.15.1-55.amzn2.2.5.aarch64  
    krb5-debuginfo-1.15.1-55.amzn2.2.5.aarch64  
  
i686:  
    krb5-devel-1.15.1-55.amzn2.2.5.i686  
    krb5-libs-1.15.1-55.amzn2.2.5.i686  
    krb5-server-1.15.1-55.amzn2.2.5.i686  
    krb5-server-ldap-1.15.1-55.amzn2.2.5.i686  
    krb5-workstation-1.15.1-55.amzn2.2.5.i686  
    krb5-pkinit-1.15.1-55.amzn2.2.5.i686  
    libkadm5-1.15.1-55.amzn2.2.5.i686  
    krb5-debuginfo-1.15.1-55.amzn2.2.5.i686  
  
src:  
    krb5-1.15.1-55.amzn2.2.5.src  
  
x86_64:  
    krb5-devel-1.15.1-55.amzn2.2.5.x86_64  
    krb5-libs-1.15.1-55.amzn2.2.5.x86_64  
    krb5-server-1.15.1-55.amzn2.2.5.x86_64  
    krb5-server-ldap-1.15.1-55.amzn2.2.5.x86_64  
    krb5-workstation-1.15.1-55.amzn2.2.5.x86_64  
    krb5-pkinit-1.15.1-55.amzn2.2.5.x86_64  
    libkadm5-1.15.1-55.amzn2.2.5.x86_64  
    krb5-debuginfo-1.15.1-55.amzn2.2.5.x86_64

Additional References

Red Hat: CVE-2022-42898

Mitre: CVE-2022-42898

OSVersionArchitecturePackageVersionFilename
Amazon Linux2aarch64krb5-devel< 1.15.1-55.amzn2.2.5krb5-devel-1.15.1-55.amzn2.2.5.aarch64.rpm
Amazon Linux2aarch64krb5-libs< 1.15.1-55.amzn2.2.5krb5-libs-1.15.1-55.amzn2.2.5.aarch64.rpm
Amazon Linux2aarch64krb5-server< 1.15.1-55.amzn2.2.5krb5-server-1.15.1-55.amzn2.2.5.aarch64.rpm
Amazon Linux2aarch64krb5-server-ldap< 1.15.1-55.amzn2.2.5krb5-server-ldap-1.15.1-55.amzn2.2.5.aarch64.rpm
Amazon Linux2aarch64krb5-workstation< 1.15.1-55.amzn2.2.5krb5-workstation-1.15.1-55.amzn2.2.5.aarch64.rpm
Amazon Linux2aarch64krb5-pkinit< 1.15.1-55.amzn2.2.5krb5-pkinit-1.15.1-55.amzn2.2.5.aarch64.rpm
Amazon Linux2aarch64libkadm5< 1.15.1-55.amzn2.2.5libkadm5-1.15.1-55.amzn2.2.5.aarch64.rpm
Amazon Linux2aarch64krb5-debuginfo< 1.15.1-55.amzn2.2.5krb5-debuginfo-1.15.1-55.amzn2.2.5.aarch64.rpm
Amazon Linux2i686krb5-devel< 1.15.1-55.amzn2.2.5krb5-devel-1.15.1-55.amzn2.2.5.i686.rpm
Amazon Linux2i686krb5-libs< 1.15.1-55.amzn2.2.5krb5-libs-1.15.1-55.amzn2.2.5.i686.rpm
Rows per page:
1-10 of 241

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8.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

9.5 High

AI Score

Confidence

High

0.005 Low

EPSS

Percentile

76.3%

JSON
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