krb5: integer overflow vulnerabilities in PAC parsing

A vulnerability was found in MIT krb5. This flaw allows an authenticated attacker to cause a KDC or kadmind process to crash by reading beyond the bounds of allocated memory, creating a denial of service. A privileged attacker may similarly be able to cause a Kerberos or GSS application service t...

krb5: integer overflow vulnerabilities in PAC parsing

A vulnerability was found in MIT krb5. This flaw allows an authenticated attacker to cause a KDC or kadmind process to crash by reading beyond the bounds of allocated memory, creating a denial of service. A privileged attacker may similarly be able to cause a Kerberos or GSS application service t...

Slackware Linux 15.0 / current samba Vulnerability (SSA:2022-320-04)

The version of samba installed on the remote host is prior to 4.15.12 / 4.17.3. It is, therefore, affected by a vulnerability as referenced in the SSA:2022-320-04 advisory. - The Kerberos libraries used by Samba provide a mechanism for authenticating a user or service by means of tickets that can...

Slackware Linux 15.0 / current krb5 Vulnerability (SSA:2022-320-01)

The version of krb5 installed on the remote host is prior to 1.19.2 / 1.20.1. It is, therefore, affected by a vulnerability as referenced in the SSA:2022-320-01 advisory. - The Kerberos libraries used by Samba provide a mechanism for authenticating a user or service by means of tickets that can...

Vulnerabilities fixed in Heimdal

Vulnerabilities have been fixed in Heimdal, an implementation of ASN.1/DER, PFIX and Kerberos. The vulnerabilities allow a remote malicious party to potentially execute arbitrary code execute in Heimdal's Key Distribution Center KDC, obtain secret keys obtain secret keys when using 1DES, 3DES, or...

Denial of service

Heimdal is an implementation of ASN.1/DER, PKIX, and Kerberos. Versions prior to 7.7.1 are vulnerable to a denial of service vulnerability in Heimdal's PKI certificate validation library, affecting the KDC via PKINIT and kinit via PKINIT, as well as any third-party applications using Heimdal's...

CVE-2022-42898

A vulnerability was found in MIT krb5. This flaw allows an authenticated attacker to cause a KDC or kadmind process to crash by reading beyond the bounds of allocated memory, creating a denial of service. A privileged attacker may similarly be able to cause a Kerberos or GSS application service t...

CVE-2022-41916

CVE-2022-41916 is a denial-of-service vulnerability in Heimdal’s PKI certificate validation (libhx509). The issue affects Heimdal versions prior to 7.7.1, including KDC via PKINIT and kinit via PKINIT, and any third-party apps using libhx509. Public documentation consistently states that upgradin...

CVE-2022-41916

Heimdal is an implementation of ASN.1/DER, PKIX, and Kerberos. Versions prior to 7.7.1 are vulnerable to a denial of service vulnerability in Heimdal's PKI certificate validation library, affecting the KDC via PKINIT and kinit via PKINIT, as well as any third-party applications using Heimdal's...

FreeBSD -- Multiple vulnerabilities in Heimdal

Problem Description: Multiple security vulnerabilities have been discovered in the Heimdal implementation of the Kerberos 5 network authentication protocols and KDC. CVE-2022-42898 PAC parse integer overflows CVE-2022-3437 Overflows and non-constant time leaks in DES,3 and arcfour CVE-2021-44758...

FreeBSD : krb5 -- Integer overflow vulnerabilities in PAC parsing (094e4a5b-6511-11ed-8c5e-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 094e4a5b-6511-11ed-8c5e-206a8a720317 advisory. - The Kerberos libraries used by Samba provide a mechanism for authenticating a user or service by mean...

Samba buffer overflow vulnerabilities on 32-bit

Description The Kerberos libraries used by Samba provide a mechanism for authenticating a user or service by means of tickets that can contain Privilege Attribute Certificates PACs. Both the Heimdal and MIT Kerberos libraries, and so the embedded Heimdal shipped by Samba suffer from an integer...

EulerOS 2.0 SP10 : samba (EulerOS-SA-2022-2697)

According to the versions of the samba packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - A flaw was found in Samba. The security vulnerability occurs when KDC and the kpasswd service share a single account and set of keys, allowing th...

Ubuntu 16.04 ESM / 18.04 LTS / 20.04 LTS : Heimdal vulnerabilities (USN-5675-1)

The remote Ubuntu 16.04 ESM / 18.04 LTS / 20.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-5675-1 advisory. Isaac Boukris and Andrew Bartlett discovered that Heimdal's KDC was not properly performing checksum algorithm verifications in t...

EulerOS 2.0 SP8 : samba (EulerOS-SA-2022-2480)

According to the versions of the samba packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - A flaw was found in Samba. The security vulnerability occurs when KDC and the kpasswd service share a single account and set of keys, allowing th...

Windows Kerberos RC4 MD4 Encryption Downgrade Privilege Escalation Vulnerability

Windows: Kerberos RC4 MD4 Encryption Downgrade EoP Platform: Windows 10+ Class: Elevation of Privilege Security Boundary: User Summary: The KDC allows an interposing attacker to downgrade to RC4 MD4 encryption in compromising the user's TGT session key resulting in EoP. NOTE: I tried to look if...

Man In The Middle (MitM)

samba:xenial is vulnerable to man-in-the-middle. A flaw was found in samba's Heimdal KDC implementation, versions 4.8.x up to when used in AD DC mode. A man in the middle attacker could use this flaw to intercept the request to the KDC and replace the user name principal in the request with any...

Security Bulletin: Vulnerability in MIT Kerberos 5 affects PowerSC (CVE-2021-37750)

Summary There is a vulnerability in MIT Kerberos 5 that affects PowerSC CVE-2021-37750. Vulnerability Details CVEID:CVE-2021-37750 DESCRIPTION: MIT Kerberos 5 aka krb5 is vulnerable to a denial of service, caused by a NULL pointer dereference flaw in kdc/dotgsreq.c in the Key Distribution Center...

Nutanix AHV : Multiple Vulnerabilities (NXSA-AHV-20201105.30142)

The version of AHV installed on the remote host is prior to 20201105.30142. It is, therefore, affected by multiple vulnerabilities as referenced in the NXSA-AHV-20201105.30142 advisory. - NSS Network Security Services versions prior to 3.73 or 3.68.1 ESR are vulnerable to a heap overflow when...

CVE-2022-2031

A flaw was found in Samba. The security vulnerability occurs when KDC and the kpasswd service share a single account and set of keys, allowing them to decrypt each other's tickets. A user who has been requested to change their password, can exploit this flaw to obtain and use tickets to other...