The vulnerability of the `pam_passkey_child_read_data()` function in the `src/responder/pam/pamsrv_passkey.c` file of the access control service for remote directories and the SSSD authentication mechanism allows a hacker to cause a service failure.

The vulnerability of the pampasskeychildreaddata function in the src/responder/pam/pamsrvpasskey.c file, belonging to the remote directory access control service and the SSSD authentication mechanism, is related to a buffer overflow. Exploiting this vulnerability could allow an attacker to cause ...

Astra Linux – Vulnerability in sssd

A flaw was discovered in the System Security Services Daemon SSSD. The pampasskeychildreaddata function within the PAM passkey responder fails to properly handle raw bytes received from a pipe. Since the data is treated as a NUL-terminated C string without an explicit termination, this leads to a...

UBUNTU-CVE-2026-68743

A flaw was found in SSSD. The extractauthtokv1 function in the PAM responder does not validate the authtokenlength field against the remaining buffer size before processing. A local attacker can exploit this via a crafted protocol v1 request to the PAM responder socket, causing an out-of-bounds...

CVE-2026-12610 Sssd: use-after-free crash in sssd' 'sssd_pam' process

A flaw was found in sssd. When authenticating with a YubiKey, the SSSD PAM responder can crash due to a use-after-free vulnerability, where a memory pointer is incorrectly handled. A local attacker could exploit this flaw by manipulating smartcard or YubiKey contents, leading to a denial of servi...

CVE-2026-12610

A flaw was found in sssd. When authenticating with a YubiKey, the SSSD PAM responder can crash due to a use-after-free vulnerability, where a memory pointer is incorrectly handled. A local attacker could exploit this flaw by manipulating smartcard or YubiKey contents, leading to a denial of servi...

CVE-2026-12610

A flaw was found in sssd. When authenticating with a YubiKey, the SSSD PAM responder can crash due to a use-after-free vulnerability, where a memory pointer is incorrectly handled. A local attacker could exploit this flaw by manipulating smartcard or YubiKey contents, leading to a denial of servi...

EUVD-2026-23032

A flaw was found in the System Security Services Daemon SSSD. The pampasskeychildreaddata function within the PAM passkey responder fails to properly handle raw bytes received from a pipe. Because the data is treated as a NUL-terminated C string without explicit termination, it results in an...

CVE-2026-6245 Sssd: out-of-bounds read in the sssd

A flaw was found in the System Security Services Daemon SSSD. The pampasskeychildreaddata function within the PAM passkey responder fails to properly handle raw bytes received from a pipe. Because the data is treated as a NUL-terminated C string without explicit termination, it results in an...

CVE-2026-6245

CVE-2026-6245 affects the System Security Services Daemon (SSSD) PAM passkey responder. The pam_passkey_child_read_data() function mishandles raw bytes from a pipe, treating them as a NUL-terminated C string, causing an out-of-bounds read (Crash) and local DoS. Affected: SSSD PAM responder; vecto...

sssd bug fix and enhancement update

The System Security Services Daemon SSSD service provides a set of daemons to manage access to remote directories and authentication mechanisms. It also provides the Name Service Switch NSS and the Pluggable Authentication Modules PAM interfaces toward the system, and a pluggable back-end system ...

sssd bug fix and enhancement update

An update is available for sssd. 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 The System Security Services Daemon SSSD service provides a set of daemons to...

ALBA-2021:5228 sssd bug fix and enhancement update

The System Security Services Daemon SSSD service provides a set of daemons to manage access to remote directories and authentication mechanisms. It also provides the Name Service Switch NSS and the Pluggable Authentication Modules PAM interfaces toward the system, and a pluggable back-end system ...

Scientific Linux Security Update : sssd on SL5.x i386/x86_64

The System Security Services Daemon SSSD provides a set of daemons to manage access to remote directories and authentication mechanisms. It provides an NSS and PAM interface toward the system and a pluggable back-end system to connect to multiple different account sources. It is also the basis to...

CentOS Update for sssd CESA-2011:0975 centos5 x86_64

Check for the Version of sssd OpenVAS Vulnerability Test CentOS Update for sssd CESA-2011:0975 centos5 x8664 Authors: System Generated Check Copyright: Copyright c 2012 Greenbone Networks GmbH, http://www.greenbone.net This program is free software; you can redistribute it and/or modify it under...

RedHat Update for sssd RHSA-2011:0560-01

Check for the Version of sssd OpenVAS Vulnerability Test RedHat Update for sssd RHSA-2011:0560-01 Authors: System Generated Check Copyright: Copyright c 2012 Greenbone Networks GmbH, http://www.greenbone.net This program is free software; you can redistribute it and/or modify it under the terms o...

RedHat Update for sssd RHSA-2011:0560-01

The remote host is missing an update for the SPDX-FileCopyrightText: 2012 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 ifdescription scriptxrefname:"URL",...

CentOS Update for sssd CESA-2011:0975 centos5 i386

Check for the Version of sssd OpenVAS Vulnerability Test CentOS Update for sssd CESA-2011:0975 centos5 i386 Authors: System Generated Check Copyright: Copyright c 2011 Greenbone Networks GmbH, http://www.greenbone.net This program is free software; you can redistribute it and/or modify it under t...

CentOS Update for sssd CESA-2011:0975 centos5 i386

The remote host is missing an update for the SPDX-FileCopyrightText: 2011 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 ifdescription...

RHEL 5 : sssd (RHSA-2011:0975)

The remote Redhat Enterprise Linux 5 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2011:0975 advisory. The System Security Services Daemon SSSD provides a set of daemons to manage access to remote directories and authentication mechanisms. It provides ...

sssd: DoS in sssd PAM responder can prevent logins

The pamparseindatav2 function in src/responder/pam/pamsrvcmd.c in the PAM responder in SSSD 1.5.0, 1.4.x, and 1.3 allows local users to cause a denial of service infinite loop, crash, and login prevention via a crafted packet...