CVE-2026-45446 Incorrect Tag Processing for Empty Messages in AES-GCM-SIV and AES-SIV modes

Issue summary: The implementations of AES-SIV RFC 5297 and AES-GCM-SIV RFC 8452 mishandle the authentication of AAD Additional Authenticated Data with an empty ciphertext allowing a forgery of such messages. Impact summary: An attacker can forge empty messages with arbitrary AAD to the victim's...

CVE-2026-45446 Incorrect Tag Processing for Empty Messages in AES-GCM-SIV and AES-SIV modes

Issue summary: The implementations of AES-SIV RFC 5297 and AES-GCM-SIV RFC 8452 mishandle the authentication of AAD Additional Authenticated Data with an empty ciphertext allowing a forgery of such messages. Impact summary: An attacker can forge empty messages with arbitrary AAD to the victim's...

CVE-2026-45446

The OpenSSL provider implementation of AES-SIV (RFC 5297) and AES-GCM-SIV (RFC 8452) mishandles authentication for Additional Authenticated Data (AAD) when the ciphertext is empty. Because the expected tag is only computed during decryption when non-empty data is processed, a zero-length cipherte...

CVE-2026-45446

Issue summary: The implementations of AES-SIV RFC 5297 and AES-GCM-SIV RFC 8452 mishandle the authentication of AAD Additional Authenticated Data with an empty ciphertext allowing a forgery of such messages. Impact summary: An attacker can forge empty messages with arbitrary AAD to the victim's...

PT-2026-47843

Name of the Vulnerable Software and Affected Versions OpenSSL versions 3.0 through 3.3 Description The implementations of AES-SIV and AES-GCM-SIV mishandle the authentication of Additional Authenticated Data AAD when the ciphertext is empty, which allows for the forgery of such messages. In the...

OpenSSL security vulnerabilities

OpenSSL is an open-source encryption library developed by the OpenSSL team that enables the implementation of Secure Sockets Layer SSLv2/v3 and Secure Transport Layer TLSv1 protocols. This product supports various encryption algorithms, including symmetric ciphers, hash algorithms, and secure has...

CVE-2026-45446: Missing Cryptographic Step

Issue summary: The implementations of AES-SIV RFC 5297 and AES-GCM-SIV RFC 8452 mishandle the authentication of AAD Additional Authenticated Data with an empty ciphertext allowing a forgery of such messages. Impact summary: An attacker can forge empty messages with arbitrary AAD to the victim's...

CVE-2026-45446

Issue summary: The implementations of AES-SIV RFC 5297 and AES-GCM-SIV RFC 8452 mishandle the authentication of AAD Additional Authenticated Data with an empty ciphertext allowing a forgery of such messages. Impact summary: An attacker can forge empty messages with arbitrary AAD to the victim's...

Incorrect Tag Processing for Empty Messages in AES-GCM-SIV and AES-SIV modes

Issue summary: The implementations of AES-SIV RFC 5297 and AES-GCM-SIV RFC 8452 mishandle the authentication of AAD Additional Authenticated Data with an empty ciphertext allowing a forgery of such messages. Impact summary: An attacker can forge empty messages with arbitrary AAD to the victim’s...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: crypto: afalg – Fixed an issue where initialisation was missing, affecting gcm-aes-s390. Fixed the afalgallocareq function to initialize areq-firstrsgl.sgl.sgt.sgl to point to the scatterlist array within areq-firstrsgl.sgl.sg...

AWS VDP: V2Plugin.Decrypt panics on empty ciphertext (Remote DoS)

A vulnerability was discovered in the "aws-encryption-provider" component where the "V2Plugin.Decrypt" function accessed the ciphertext slice without checking if it was empty, leading to a panic and crashing the entire gRPC server process...

AWS VDP: V1Plugin.Decrypt panics on empty ciphertext (Remote DoS)

A vulnerability was discovered in the aws-encryption-provider component of the pkg/plugin/plugin.go file at revision 4341c70. The vulnerability caused the V1Plugin.Decrypt function to panic when passed an empty ciphertext, crashing the entire gRPC server process. This was due to the function...

EUVD-2023-60009

In the Linux kernel, the following vulnerability has been resolved: serial: arcuart: fix ofiomap leak in arcserialprobe Smatch reports: drivers/tty/serial/arcuart.c:631 arcserialprobe warn: 'port-membase' from ofiomap not released on lines: 631. In arcserialprobe, if uartaddoneport fails,...

SUSE CVE-2023-53599

In the Linux kernel, the following vulnerability has been resolved: crypto: afalg - Fix missing initialisation affecting gcm-aes-s390 Fix afalgallocareq to initialise areq-firstrsgl.sgl.sgt.sgl to point to the scatterlist array in areq-firstrsgl.sgl.sgl. Without this, the gcm-aes-s390 driver will...

CVE-2023-53599

In the Linux kernel, the following vulnerability has been resolved: crypto: afalg - Fix missing initialisation affecting gcm-aes-s390 Fix afalgallocareq to initialise areq-firstrsgl.sgl.sgt.sgl to point to the scatterlist array in areq-firstrsgl.sgl.sgl. Without this, the gcm-aes-s390 driver will...

UBUNTU-CVE-2023-53599

In the Linux kernel, the following vulnerability has been resolved: crypto: afalg - Fix missing initialisation affecting gcm-aes-s390 Fix afalgallocareq to initialise areq-firstrsgl.sgl.sgt.sgl to point to the scatterlist array in areq-firstrsgl.sgl.sgl. Without this, the gcm-aes-s390 driver will...

CVE-2023-53599 crypto: af_alg - Fix missing initialisation affecting gcm-aes-s390

In the Linux kernel, the following vulnerability has been resolved: crypto: afalg - Fix missing initialisation affecting gcm-aes-s390 Fix afalgallocareq to initialise areq-firstrsgl.sgl.sgt.sgl to point to the scatterlist array in areq-firstrsgl.sgl.sgl. Without this, the gcm-aes-s390 driver will...

CVE-2023-53599

CVE-2023-53599 concerns the Linux kernel crypto/af_alg path, specifically a missing initialisation in af_alg_alloc_areq() that caused gcm-aes-s390 to oops when req->dst was read and an empty ciphertext is passed. The issue made gcm_walk_start() operate on an uninitialised pointer (areq->fir...

PT-2025-40762

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The Linux kernel contains a flaw within the crypto/af alg subsystem, specifically impacting the gcm-aes-s390 driver. A missing initialization in af alg alloc areq can lead to an issue...