Moderate: krb5 security and bug fix update

Kerberos is a network authentication system, which can improve the security of your network by eliminating the insecure practice of sending passwords over the network in unencrypted form. It allows clients and servers to authenticate to each other with the help of a trusted third party, the...

CVE-2023-5568 Samba: heap buffer overflow with freshness tokens in the heimdal kdc

A heap-based Buffer Overflow flaw was discovered in Samba. It could allow a remote, authenticated attacker to exploit this vulnerability to cause a denial of service...

Samba File Buffer Overflow Vulnerability (CVE-2023-5568)

Samba is prone to a buffer overflow vulnerability. SPDX-FileCopyrightText: 2023 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only CPE = "cpe:/a:samba:samba"; ifdescription...

krb5 bug fix update

An update is available for krb5. This update affects Rocky Linux 8. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list Kerberos is a network authentication system, which can improve the security of...

CVE-2023-39975

A vulnerability was found in MIT krb5, where an authenticated attacker can cause a KDC to free the same pointer twice if it can induce a failure in authorization data handling...

Double Free

libkrb5.so is vulnerable to Double Free. The vulnerability exists due to a failure in authorization data handling in the dotgsreq.c, which allows an attacker to cause the Key Distribution Center KDC to free the same pointer twice when incorrect data is copied from one ticket to another...

FreeBSD : krb5 -- Double-free in KDC TGS processing (a6986f0f-3ac0-11ee-9a88-206a8a720317)

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the a6986f0f-3ac0-11ee-9a88-206a8a720317 advisory. - This is a backport of the upstream fix for CVE-2023-39975: https://github.com/krb5/krb5/pull/1312...

krb5 -- Double-free in KDC TGS processing

The MIT krb5 Team reports: When issuing a ticket for a TGS renew or validate request, copy only the server field from the outer part of the header ticket to the new ticket. Copying the whole structure causes the encpart pointer to be aliased to the header ticket until krb5encrypttktpart is called...

Important: Red Hat Enhancement Advisory: krb5 bug fix update

An update for krb5 is now available for Red Hat Enterprise Linux 8. Kerberos is a network authentication system, which can improve the security of your network by eliminating the insecure practice of sending passwords over the network in unencrypted form. It allows clients and servers to...

krb5 bug fix update

An update is available for krb5. This update affects Rocky Linux 9. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list Kerberos is a network authentication system, which can improve the security of...

CVE-2023-3326

pamkrb5 authenticates a user by essentially running kinit with the password, getting a ticket-granting ticket tgt from the Kerberos KDC Key Distribution Center over the network, as a way to verify the password. However, if a keytab is not provisioned on the system, pamkrb5 has no way to validate...

CVE-2023-3326

pamkrb5 authenticates a user by essentially running kinit with the password, getting a ticket-granting ticket tgt from the Kerberos KDC Key Distribution Center over the network, as a way to verify the password. However, if a keytab is not provisioned on the system, pamkrb5 has no way to validate...

CVE-2023-3326

CVE-2023-3326 affects pam_krb5 in FreeBSD deployments where a keytab is not provisioned. The module authenticates by requesting a Kerberos TGT from KDC using the user password, but without a keytab there is no way to validate the KDC’s response, allowing an attacker who can control both the passw...

CVE-2023-3326

pamkrb5 authenticates a user by essentially running kinit with the password, getting a ticket-granting ticket tgt from the Kerberos KDC Key Distribution Center over the network, as a way to verify the password. However, if a keytab is not provisioned on the system, pamkrb5 has no way to validate...

FreeBSD -- Network authentication attack via pam_krb5

Problem Description: pamkrb5 authenticates the user by essentially running kinit1 with the password, getting a ticket-granting ticket' tgt from the Kerberos KDC Key Distribution Center over the network, as a way to verify the password. Normally, the system running the pamkrb5 module will also hav...

EulerOS Virtualization 3.0.6.0 : samba (EulerOS-SA-2023-2231)

According to the versions of the samba packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : - MaxQueryDuration not honoured in Samba AD DC LDAP CVE-2021-3670 - A flaw was found in Samba. The security vulnerability occurs whe...

EulerOS 2.0 SP5 : samba (EulerOS-SA-2023-2168)

According to the versions of the samba packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - A heap-based buffer overflow vulnerability was found in Samba within the GSSAPI unwrapdes and unwrapdes3 routines of Heimdal. The DES and...

EulerOS Virtualization 2.11.0 : krb5 (EulerOS-SA-2023-2096)

According to the versions of the krb5 packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : - 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...

EulerOS Virtualization 2.10.0 : samba (EulerOS-SA-2023-1929)

According to the versions of the samba packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : - A heap-based buffer overflow vulnerability was found in Samba within the GSSAPI unwrapdes and unwrapdes3 routines of Heimdal. The...

krb5 security, bug fix, and enhancement update

1.20.1-8.0.1 - Fixed race condition in krb5setpassword Orabug: 33609767 1.20.1-8 - Fix datetime parsing in kadmin on s390x - Resolves: rhbz2169985 1.20.1-7 - Fix double free on kdb5util key creation failure - Resolves: rhbz2166603 1.20.1-6 - Add support for MS-PAC extended KDC signature...