USN-8672-1: SSSD vulnerability

It was discovered that the SSSD PAM responder may crash if a physically proximate attacker manipulates a smartcard or Yubikey. Non-malicious physically proximate users may not be able to log in depending upon the details of their legitimate smartcard or Yubikey...

CVE-2026-13343

The UMP Stream responder library in lib/midi2/umpstreamresponder.c builds reply packets in a 16-byte struct midiump uint32t data4. The builders makeendpointinfo and makefunctionblockinfo populate only the first two words res.data0 and res.data1 and, before this fix, declared their result as an...

CVE-2026-13343 Uninitialised stack memory disclosure in the MIDI 2.0 UMP Stream responder

The UMP Stream responder library in lib/midi2/umpstreamresponder.c builds reply packets in a 16-byte struct midiump uint32t data4. The builders makeendpointinfo and makefunctionblockinfo populate only the first two words res.data0 and res.data1 and, before this fix, declared their result as an...

CVE-2026-13343

CVE-2026-13343 affects the Zephyr RTOS UMP Stream responder library (lib/midi2/ump_stream_responder.c). The functions make_endpoint_info() and make_function_block_info() declare a local struct midi_ump without initialisation, populating only the first two of four uint32_t words. The remaining two...

CVE-2026-13343 Uninitialised stack memory disclosure in the MIDI 2.0 UMP Stream responder

The UMP Stream responder library in lib/midi2/umpstreamresponder.c builds reply packets in a 16-byte struct midiump uint32t data4. The builders makeendpointinfo and makefunctionblockinfo populate only the first two words res.data0 and res.data1 and, before this fix, declared their result as an...

EUVD-2026-64924

The UMP Stream responder library in lib/midi2/umpstreamresponder.c builds reply packets in a 16-byte struct midiump uint32t data4. The builders makeendpointinfo and makefunctionblockinfo populate only the first two words res.data0 and res.data1 and, before this fix, declared their result as an...

PT-2026-80902

The UMP Stream responder library in lib/midi2/ump stream responder.c builds reply packets in a 16-byte struct midi ump uint32 t data4. The builders make endpoint info and make function block info populate only the first two words res.data0 and res.data1 and, before this fix, declared their result...

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 of the access control service for remote directories and the SSSD authentication mechanism is related to a buffer overflow. Exploiting this vulnerability could allow an attacker to cause a...

httpd: mod_md: unrestricted OCSP response leads to resource exhaustion

A flaw was found in the modmd module of httpd. When processing OCSP Online Certificate Status Protocol responses from a malicious or compromised OCSP responder, the module fails to enforce proper size limits on the incoming data. This issue leads to memory exhaustion and a denial of service...

EulerOS 2.0 SP15 : sssd (EulerOS-SA-2026-2911)

According to the versions of the sssd packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : A flaw was found in the System Security Services Daemon SSSD. The pampasskeychildreaddata function within the PAM passkey responder fails to properl...

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-2026-68743 Sssd: sssd: pam responder out-of-bounds read via unchecked auth_token_length in protocol v1

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-2026-68743

SSSD's extract_authtok_v1() in the PAM responder skips validation of auth_token_length against the buffer, allowing a local attacker to trigger an out-of-bounds read and crash via a crafted protocol v1 request. Nessus flags unpatched distros; no in-the-wild exploitation is reported. Apply vendor ...

CVE-2026-68744

CVE-2026-68744 concerns the SSSD NSS responder. The function sss_nss_protocol_fill_initgr() pre-allocates reply space for all groups but does not shrink the packet when groups are skipped, causing uninitialized heap bytes to be sent to the client. This enables a local attacker to disclose cached ...

CVE-2026-68744 Sssd: sssd: nss responder uninitialized heap disclosure in initgroups reply

A flaw was found in SSSD. The sssnssprotocolfillinitgr function in the NSS responder pre-allocates reply space for all group entries but does not shrink the packet when groups are skipped, causing uninitialized heap bytes to be transmitted to the client. A local attacker can exploit this to...

Linux Distros Unpatched Vulnerability : CVE-2026-68744

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - A flaw was found in SSSD. The sssnssprotocolfillinitgr function in the NSS responder pre-allocates reply space for all group entries but does not shrink the...

Amazon Linux 2023 : aws-nitro-enclaves-cli, aws-nitro-enclaves-cli-devel, aws-nitro-enclaves-cli-integration-tests (ALAS2023-2026-2034)

It is, therefore, affected by a vulnerability as referenced in the ALAS2023-2026-2034 advisory. rust-openssl provides OpenSSL bindings for the Rust programming language. From 0.9.7 to before 0.10.79, X509Ref::ocspresponders returns OCSP responder URLs from a certificate's AIA extension as...

Important: aws-nitro-enclaves-cli

Issue Overview: rust-openssl provides OpenSSL bindings for the Rust programming language. From 0.9.7 to before 0.10.79, X509Ref::ocspresponders returns OCSP responder URLs from a certificate's AIA extension as OpensslString, whose Deref wraps the raw bytes with str::fromutf8unchecked. OpenSSL doe...

UBUNTU-CVE-2026-68742

A flaw was found in SSSD. The sssnssprotocolparseaddr function in the NSS responder does not validate the addrlen field against the remaining packet body size. A local attacker can exploit this via a crafted GETHOSTBYADDR request to the NSS responder socket, causing an out-of-bounds read and...

CVE-2026-68742

The CVE-2026-68742 entry concerns SSSD’s NSS responder. The root cause is that sss_nss_protocol_parse_addr() does not validate the addrlen field against the remaining packet size, enabling a crafted GETHOSTBYADDR request to trigger an out-of-bounds read and crash the process, causing denial of se...