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Amazon Linux AMI: CVE-2023-36054: Security patch for krb5 (ALAS-2023-1818)

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Amazon Linux AMI: CVE-2023-36054: Security patch for krb5 (ALAS-2023-1818)

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
08/07/2023
Created
09/13/2023
Added
09/11/2023
Modified
09/11/2023

Description

lib/kadm5/kadm_rpc_xdr.c in MIT Kerberos 5 (aka krb5) before 1.20.2 and 1.21.x before 1.21.1 frees an uninitialized pointer. A remote authenticated user can trigger a kadmind crash. This occurs because _xdr_kadm5_principal_ent_rec does not validate the relationship between n_key_data and the key_data array count.

Solution(s)

  • amazon-linux-upgrade-krb5

References

  • ALAS-2023-1818
  • CVE-2023-36054

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