gssapi-abuse

gssapi-abuse gssapi-abuse è stato rilasciato come parte del mio intervento al DEF CON 31. Un articolo completo sul vettore di abuso si trova qui: A Broken Marriage: Abusing Mixed Vendor Kerberos Stacks Lo strumento ha due funzionalità. La prima è la capacità di enumerare host non Windows che sono...

Ubuntu 22.04 LTS / 24.04 LTS / 26.04 LTS : OpenSSH vulnerabilities (USN-8533-1)

The remote Ubuntu 22.04 LTS / 24.04 LTS / 26.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-8533-1 advisory. It was discovered that OpenSSH sftp did not properly constrain the location of downloaded files when connecting to an...

EUVD-2026-42597

Zeek before 8.0.9 contains an uncontrolled memory consumption vulnerability in the FTP analyzer that allows unauthenticated remote attackers to cause process termination by sending a crafted FTP control session negotiating AUTH GSSAPI followed by a large ADAT control line. Attackers can exploit t...

Allocation of Resources Without Limits or Throttling

Overview Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling due to improper handling of the MaxAuthTries parameter during the authentication process. An attacker can exhaust server resources by repeatedly attempting authentication using GSSAPI...

AZL-92048 CVE-2026-60000 affecting package openssh for versions less than 9.8p1-9

sshd in OpenSSH before 10.4 allows remote attackers to cause a denial of service resource consumption from excessive authentication attempts because MaxAuthTries was mishandled for GSSAPIAuthentication...

DEBIAN-CVE-2026-60000

sshd in OpenSSH before 10.4 allows remote attackers to cause a denial of service resource consumption from excessive authentication attempts because MaxAuthTries was mishandled for GSSAPIAuthentication...

UBUNTU-CVE-2026-60000

sshd in OpenSSH before 10.4 allows remote attackers to cause a denial of service resource consumption from excessive authentication attempts because MaxAuthTries was mishandled for GSSAPIAuthentication...

CVE-2026-11610

A heap buffer overflow flaw was found in the SASL I/O layer of 389 Directory Server 389-ds-base. After a successful SASL bind with integrity protection SSF 0, an authenticated attacker can send a specially crafted oversized LDAP UNBIND packet that is copied into a 512-byte heap receive buffer...

CVE-2026-55957

Missing Critical Step in Authentication vulnerability in Apache Tomcat when the JNDIRealm was configured to authenticate binds using GSSAPI allowed attackers to authenticate without provided the correct password. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.4, from 10.1.0-M1...

libssh: libssh: Denial of Service via zero-length input in ssh_get_hexa()

A flaw was found in libssh. The API function sshgethexa is vulnerable to a denial of service when processing zero-length input. This can be exploited remotely by an attacker during GSSAPI Generic Security Service Application Program Interface authentication if the server's logging verbosity is se...

libssh: libssh: Denial of Service via zero-length input in ssh_get_hexa()

A flaw was found in libssh. The API function sshgethexa is vulnerable to a denial of service when processing zero-length input. This can be exploited remotely by an attacker during GSSAPI Generic Security Service Application Program Interface authentication if the server's logging verbosity is se...

CLSA-2026-1778068747 Fix CVE(s): CVE-2026-0966

SECURITY UPDATE: heap buffer underflow in sshgethexa on zero-length or NULL input, remotely reachable via GSSAPI authentication logging - debian/patches/CVE-2026-0966.patch: reject NULL/zero-length input in sshgethexa in src/dh.c - CVE-2026-0966: fix heap buffer underflow in sshgethexa...

CLSA-2026-1778003186 libssh: Fix of CVE-2026-0966

CVE-2026-0966: fix heap buffer underflow in sshgethexa on NULL or zero-length input, remotely reachable via GSSAPI authentication logging...

CLSA-2026-1777939266 libssh: Fix of CVE-2026-0966

CVE-2026-0966: fix heap buffer underflow in sshgethexa on NULL or zero-length input, remotely reachable via GSSAPI authentication logging...

Security Bulletin: IBM Watson Speech Services Cartridge is vulnerable to an Improper Allocation of Resources in Golang Go (CVE-2025-58181)

Summary IBM Watson Speech Services Cartridge is vulnerable to an Improper Allocation of Resources in Golang Go, caused by an issue in SSH servers parsing GSSAPI authentication requests, which do not validate the number of mechanisms specified in the request CVE-2025-58181. Golang Go is used in ou...

golang.org/x/crypto/ssh: golang.org/x/crypto/ssh: Denial of Service via unbounded memory consumption in GSSAPI authentication

A flaw was found in golang.org/x/crypto/ssh. An attacker can exploit this vulnerability by sending specially crafted GSSAPI Generic Security Service Application Program Interface authentication requests to an SSH Secure Shell server. The server fails to validate the number of mechanisms specified...

AZL-81095 CVE-2026-0966 affecting package libssh for versions less than 0.10.6-7

A flaw was found in libssh. The API function sshgethexa is vulnerable to a denial of service when processing zero-length input. This can be exploited remotely by an attacker during GSSAPI Generic Security Service Application Program Interface authentication if the server's logging verbosity is se...

CVE-2026-0966

A flaw was found in libssh. The API function sshgethexa is vulnerable to a denial of service when processing zero-length input. This can be exploited remotely by an attacker during GSSAPI Generic Security Service Application Program Interface authentication if the server's logging verbosity is se...

CLEANSTART-2026-WK88787 SSH servers parsing GSSAPI authentication requests do not validate the number of mechanisms specified in the request, allowing an attacker to cause unbounded memory consumption

Multiple security vulnerabilities affect the argo-workflows-fips package. SSH servers parsing GSSAPI authentication requests do not validate the number of mechanisms specified in the request, allowing an attacker to cause unbounded memory consumption. See references for individual vulnerability...

CLEANSTART-2026-WP20592 SSH servers parsing GSSAPI authentication requests do not validate the number of mechanisms specified in the request, allowing an attacker to cause unbounded memory consumption

Multiple security vulnerabilities affect the argo-workflows-fips package. SSH servers parsing GSSAPI authentication requests do not validate the number of mechanisms specified in the request, allowing an attacker to cause unbounded memory consumption. See references for individual vulnerability...