DEBIAN-CVE-2021-39272

Fetchmail before 6.4.22 fails to enforce STARTTLS session encryption in some circumstances, such as a certain situation with IMAP and PREAUTH...

UBUNTU-CVE-2021-39272

Fetchmail before 6.4.22 fails to enforce STARTTLS session encryption in some circumstances, such as a certain situation with IMAP and PREAUTH...

DEBIAN-CVE-2021-36222

ecverify in kdc/kdcpreauthec.c in the Key Distribution Center KDC in MIT Kerberos 5 aka krb5 before 1.18.4 and 1.19.x before 1.19.2 allows remote attackers to cause a NULL pointer dereference and daemon crash. This occurs because a return value is not properly managed in a certain situation...

UBUNTU-CVE-2021-36222

ecverify in kdc/kdcpreauthec.c in the Key Distribution Center KDC in MIT Kerberos 5 aka krb5 before 1.18.4 and 1.19.x before 1.19.2 allows remote attackers to cause a NULL pointer dereference and daemon crash. This occurs because a return value is not properly managed in a certain situation...

Mozilla: Security downgrade with IMAP STARTTLS leads to information leakage

The Mozilla Foundation Security Advisory describes this flaw as: If Thunderbird is configured to use STARTTLS for an IMAP server, and the server sends a PREAUTH response, then Thunderbird will continue with an unencrypted connection, causing email data to be sent without protection...

DEBIAN-CVE-2020-14093

Mutt before 1.14.3 allows an IMAP fcc/postpone man-in-the-middle attack via a PREAUTH response...

PHP imap_open Remote Code Execution Exploit

The imapopen function within PHP, if called without the /norsh flag, will attempt to preauthenticate an IMAP session. On Debian based systems, including Ubuntu, rsh is mapped to the ssh binary. Ssh's ProxyCommand option can be passed from imapopen to execute arbitrary commands. While many custom...

DEBIAN-CVE-2017-15088

plugins/preauth/pkinit/pkinitcryptoopenssl.c in MIT Kerberos 5 aka krb5 through 1.15.2 mishandles Distinguished Name DN fields, which allows remote attackers to execute arbitrary code or cause a denial of service buffer overflow and application crash in situations involving untrusted X.509 data,...

Session fixation

A vulnerability in the web functionality of the Cisco Prime LAN Management Solution could allow an authenticated, remote attacker to hijack another user's administrative session, aka a Session Fixation Vulnerability. The vulnerability is due to the reuse of a preauthentication session token as pa...

How to Configure NetScaler Gateway Preauthentication EPA Scan for Domain Check

This article describes how to configure NetScaler Gateway preauthentication EPA scan for domain check...

How to Configure NetScaler Gateway Preauthentication EPA Scan for Antivirus and Firewall Check

This article describes how to configure NetScaler Gateway preauthentication EPA scan for antivirus and firewall check...

Amazon Linux AMI : krb5 (ALAS-2015-624)

A flaw was found in the OTP kdcpreauth module of MIT Kerberos. A remote attacker could use this flaw to bypass the requirespreauth flag on a client principal and obtain a ciphertext encrypted in the principal's long-term key. This ciphertext could be used to conduct an off-line dictionary attack...

USN-2810-1 Kerberos vulnerability | Cloud Foundry

USN-2810-1 Kerberos vulnerability Medium Vendor Kerberos Versions Affected Ubuntu 14.04 Description It was discovered that Kerberos incorrectly handled null bytes in certain data fields. A remote attacker could possibly use this issue to cause a denial of service. It was discovered that the...

krb5: issues in OTP and PKINIT kdcpreauth modules leading to requires_preauth bypass

A flaw was found in the OTP kdcpreauth module of MIT Kerberos. A remote attacker could use this flaw to bypass the requirespreauth flag on a client principal and obtain a ciphertext encrypted in the principal's long-term key. This ciphertext could be used to conduct an off-line dictionary attack...

krb5: multiple issues

CVE-2014-5355 denial of service When a server process uses the krb5recvauth function, an unauthenticated remote attacker can cause a NULL dereference by sending a zero-byte version string, or a read beyond the end of allocated storage by sending a non-null-terminated version string. The example...

lib32-krb5: multiple issues

CVE-2014-5355 denial of service When a server process uses the krb5recvauth function, an unauthenticated remote attacker can cause a NULL dereference by sending a zero-byte version string, or a read beyond the end of allocated storage by sending a non-null-terminated version string. The example...

DEBIAN-CVE-2015-2694

The kdcpreauth modules in MIT Kerberos 5 aka krb5 1.12.x and 1.13.x before 1.13.2 do not properly track whether a client's request has been validated, which allows remote attackers to bypass an intended preauthentication requirement by providing 1 zero bytes of data or 2 an arbitrary realm name,...

CVE-2015-2694

The kdcpreauth modules in MIT Kerberos 5 aka krb5 1.12.x and 1.13.x before 1.13.2 do not properly track whether a client's request has been validated, which allows remote attackers to bypass an intended preauthentication requirement by providing 1 zero bytes of data or 2 an arbitrary realm name,...

CVE-2015-2694

The kdcpreauth modules in MIT Kerberos 5 aka krb5 1.12.x and 1.13.x before 1.13.2 do not properly track whether a client's request has been validated, which allows remote attackers to bypass an intended preauthentication requirement by providing 1 zero bytes of data or 2 an arbitrary realm name,...

Design/Logic Flaw

The kdcpreauth modules in MIT Kerberos 5 aka krb5 1.12.x and 1.13.x before 1.13.2 do not properly track whether a client's request has been validated, which allows remote attackers to bypass an intended preauthentication requirement by providing 1 zero bytes of data or 2 an arbitrary realm name,...