278 matches found
CVE-2026-5477 Prefix-substitution forgery via integer overflow in wolfCrypt CMAC
An integer overflow existed in the wolfCrypt CMAC implementation, that could be exploited to forge CMAC tags. The function wcCmacUpdate used the guard if cmac-totalSz != 0 to skip XOR-chaining on the first block where digest is all-zeros and the XOR is a no-op. However, totalSz is word32 and wrap...
CVE-2026-29143 S/MIME Decryption Impersonation
SEPPmail Secure Email Gateway before version 15.0.3 does not properly authenticate the inner message of S/MIME-encrypted MIME entities, allowing an attacker to control trusted headers...
CVE-2026-29143
CVE-2026-29143 affects SEPPmail Secure Email Gateway prior to version 15.0.3. The issue is that the inner S/MIME-encrypted MIME entity is not properly authenticated, enabling an attacker to manipulate trusted headers. The root cause is insufficient verification of the inner message, with potentia...
CVE-2026-21713
A flaw in Node.js HMAC verification uses a non-constant-time comparison when validating user-provided signatures, potentially leaking timing information proportional to the number of matching bytes. Under certain threat models where high-resolution timing measurements are possible, this behavior...
libcrux Panics During 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...
ksmbd: Compare MACs in constant time
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CVE-2026-23364
A flaw was found in ksmbd, a Linux kernel module. This vulnerability stems from the use of a non-constant time memory comparison function when verifying Message Authentication Codes MACs. A remote attacker could exploit this timing difference to conduct a timing attack, potentially leading to the...
EUVD-2026-15344
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...
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...
UBUNTU-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...
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-2026-1627
An attacker may exploit the use of outdated and weak MAC algorithms in the device’s SSH service to potentially compromise the integrity of the SSH session, allowing manipulation of transmitted data if the attacker can interact with the network traffic...
CVE-2026-1627
An attacker may exploit the use of outdated and weak MAC algorithms in the device’s SSH service to potentially compromise the integrity of the SSH session, allowing manipulation of transmitted data if the attacker can interact with the network traffic...
PT-2026-22321
An attacker may exploit the use of outdated and weak MAC algorithms in the device’s SSH service to potentially compromise the integrity of the SSH session, allowing manipulation of transmitted data if the attacker can interact with the network traffic...
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...
