[Debian] High CVE: CVE-2023-36054 krb5: a remote authenticated user can trigger a kadmind crash

Bug #2038795 reported by Yue Tao
256
This bug affects 1 person
Affects Status Importance Assigned to Milestone
StarlingX
Triaged
High
Unassigned

Bug Description

CVE-2023-36054: https://nvd.nist.gov/vuln/detail/CVE-2023-36054

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.

Base Score: High

Reference:

['krb5-multidev_1.18.3-6+deb11u3_amd64.deb===>krb5-multidev_1.18.3-6+deb11u4_amd64.deb', 'libgssapi-krb5-2_1.18.3-6+deb11u3_amd64.deb===>libgssapi-krb5-2_1.18.3-6+deb11u4_amd64.deb', 'libgssrpc4_1.18.3-6+deb11u3_amd64.deb===>libgssrpc4_1.18.3-6+deb11u4_amd64.deb', 'libk5crypto3_1.18.3-6+deb11u3_amd64.deb===>libk5crypto3_1.18.3-6+deb11u4_amd64.deb', 'libkadm5clnt-mit12_1.18.3-6+deb11u3_amd64.deb===>libkadm5clnt-mit12_1.18.3-6+deb11u4_amd64.deb', 'libkadm5srv-mit12_1.18.3-6+deb11u3_amd64.deb===>libkadm5srv-mit12_1.18.3-6+deb11u4_amd64.deb', 'libkrb5-3_1.18.3-6+deb11u3_amd64.deb===>libkrb5-3_1.18.3-6+deb11u4_amd64.deb', 'libkrb5-dev_1.18.3-6+deb11u3_amd64.deb===>libkrb5-dev_1.18.3-6+deb11u4_amd64.deb', 'libkrb5support0_1.18.3-6+deb11u3_amd64.deb===>libkrb5support0_1.18.3-6+deb11u4_amd64.deb']

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