CVE-2026-23364

In the Linux kernel, the following vulnerability has been resolved: ksmbd: Compare MACs in constant time To prevent timing attacks, MAC comparisons need to be constant-time. Replace the memcmp with the correct function, cryptomemneq...

Important: munge

Issue Overview: MUNGE is an authentication service for creating and validating user credentials. From 0.5 to 0.5.17, local attacker can exploit a buffer overflow vulnerability in munged the MUNGE authentication daemon to leak cryptographic key material from process memory. With the leaked key...

RUSTSEC-2026-0073 Panic in Standalone MAC Operations

An incorrect constant for the key length in libcrux-poly1305 caused the standalone MAC function libcruxpoly1305::mac to always panic with an out-of-bounds memory access. Impact Applications wishing to use libcrux-poly1305 as a standalone MAC would experience panics. The use of libcrux-poly1305 in...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: SCTP: The comparison of MACs has been fixed to require constant-time operations. To prevent timing attacks, MACs need to be compared in constant-time. Use the appropriate helper function for this purpose...

CVE-2026-25506

MUNGE is an authentication service for creating and validating user credentials. From 0.5 to 0.5.17, local attacker can exploit a buffer overflow vulnerability in munged the MUNGE authentication daemon to leak cryptographic key material from process memory. With the leaked key material, the...

CVE-2026-25506 MUNGE has a buffer overflow in message unpacking allows key leakage and credential forgery

MUNGE is an authentication service for creating and validating user credentials. From 0.5 to 0.5.17, local attacker can exploit a buffer overflow vulnerability in munged the MUNGE authentication daemon to leak cryptographic key material from process memory. With the leaked key material, the...

Node.js: Timing side-channel in HMAC verification via memcmp() in crypto_hmac.cc leads to potential MAC forgery

Vulnerability description not provided...

SUSE-SU-2026:0203-1 Security update for the Linux Kernel (Live Patch 15 for SUSE Linux Enterprise 15 SP6)

This update for the SUSE Linux Enterprise kernel 6.4.0-150600.23.70 fixes various security issues The following security issues were fixed: - CVE-2023-53676: scsi: target: iscsi: Fix buffer overflow in liotargetnaclinfoshow bsc1251787. - CVE-2025-39682: tls: fix handling of zero-length records on...

SUSE-SU-2026:20384-1 Security update for the Linux Kernel (Live Patch 13 for SUSE Linux Enterprise Micro 6.0)

This update for the SUSE Linux Enterprise kernel 6.4.0-36.1 fixes various security issues The following security issues were fixed: - CVE-2023-53676: scsi: target: iscsi: Fix buffer overflow in liotargetnaclinfoshow bsc1251787. - CVE-2025-40204: sctp: Fix MAC comparison to be constant-time...

SUSE-SU-2026:20376-1 Security update for the Linux Kernel (Live Patch 4 for SUSE Linux Enterprise Micro 6.0)

This update for the SUSE Linux Enterprise kernel 6.4.0-24.1 fixes various security issues The following security issues were fixed: - CVE-2023-53676: scsi: target: iscsi: Fix buffer overflow in liotargetnaclinfoshow bsc1251787. - CVE-2024-57849: s390/cpumsf: handle CPU hotplug remove during...

SUSE-SU-2026:0147-1 Security update for the Linux Kernel RT (Live Patch 6 for SUSE Linux Enterprise 15 SP7)

This update for the SUSE Linux Enterprise kernel 640-150700.7.22 fixes various security issues The following security issues were fixed: - CVE-2023-53676: scsi: target: iscsi: Fix buffer overflow in liotargetnaclinfoshow bsc1251787. - CVE-2025-40204: sctp: Fix MAC comparison to be constant-time...

Cryptographic Semantic Binding Flaw

ALTCHA libraries are vulnerable to a cryptographic semantic binding flaw. The vulnerability is due to ambiguous HMAC binding between challenge parameters and the nonce, which allows an attacker to splice or reinterpret a valid proof-of-work submission for example by modifying the expiration value...

Improper Verification of Cryptographic Signature

Overview altcha is a The ALTCHA Python Library is a lightweight, zero-dependency library designed for creating and verifying ALTCHA challenges, specifically tailored for Python applications. Affected versions of this package are vulnerable to Improper Verification of Cryptographic Signature via t...

CVE-2013-10031

Plack-Middleware-Session versions before 0.17 may be vulnerable to HMAC comparison timing attacks...

kernel: ipv6: sr: Fix MAC comparison to be constant-time

In the Linux kernel, the following vulnerability has been resolved: ipv6: sr: Fix MAC comparison to be constant-time To prevent timing attacks, MACs need to be compared in constant time. Use the appropriate helper function for this...

DEBIAN-CVE-2025-40204

In the Linux kernel, the following vulnerability has been resolved: sctp: Fix MAC comparison to be constant-time To prevent timing attacks, MACs need to be compared in constant time. Use the appropriate helper function for this...

UBUNTU-CVE-2025-40204

In the Linux kernel, the following vulnerability has been resolved: sctp: Fix MAC comparison to be constant-time To prevent timing attacks, MACs need to be compared in constant time. Use the appropriate helper function for this...

CVE-2025-40204

Vulnerability CVE-2025-40204 in the Linux kernel affects SCTP MAC comparison; the issue is resolved by ensuring constant-time MAC comparisons. The advisory texts explicitly state that the fix is in the Linux kernel SCTP code and aim to prevent timing attacks. Connected documents also show multipl...

CVE-2025-40204

In the Linux kernel, the following vulnerability has been resolved: sctp: Fix MAC comparison to be constant-time To prevent timing attacks, MACs need to be compared in constant time. Use the appropriate helper function for this...

kernel: ipv6: sr: Fix MAC comparison to be constant-time

In the Linux kernel, the following vulnerability has been resolved: ipv6: sr: Fix MAC comparison to be constant-time To prevent timing attacks, MACs need to be compared in constant time. Use the appropriate helper function for this...