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Amazon Linux AMI: CVE-2022-42898: Security patch for krb5 ((Multiple Advisories))

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Amazon Linux AMI: CVE-2022-42898: Security patch for krb5 ((Multiple Advisories))

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
11/05/2022
Created
01/26/2023
Added
01/25/2023
Modified
02/15/2023

Description

PAC parsing in MIT Kerberos 5 (aka krb5) before 1.19.4 and 1.20.x before 1.20.1 has integer overflows that may lead to remote code execution (in KDC, kadmind, or a GSS or Kerberos application server) on 32-bit platforms (which have a resultant heap-based buffer overflow), and cause a denial of service on other platforms. This occurs in krb5_pac_parse in lib/krb5/krb/pac.c. Heimdal before 7.7.1 has "a similar bug."

Solution(s)

  • amazon-linux-upgrade-krb5

References

  • ALAS-2023-1680
  • CVE-2022-42898
  • USN-5800-1
  • USN-5822-1

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