An Introductory Review of the Theory of Continuous-Variable Quantum Key Distribution: Fundamentals, Protocols, and Security

Continuous-variable quantum key distribution CV-QKD has emerged as a promising approach for secure quantum communication, offering advantages such as high key generation rates, compatibility with standard telecommunication infrastructure, and potential for integration on photonic chips. This revi...

kernel security update

5.14.0-611.11.1 - Disable UKI signing Orabug: 36571828 - Update Oracle Linux certificates Kevin Lyons - Disable signing for aarch64 Ilya Okomin - Oracle Linux RHCK Module Signing Key was added to the kernel trusted keys list olkmodsigningkey.pem Orabug: 29539237 - Update x509.genkey Orabug:...

Red Teaming Large Reasoning Models

Large Reasoning Models LRMs have emerged as a powerful advancement in multi-step reasoning tasks, offering enhanced transparency and logical consistency through explicit chains of thought CoT. However, these models introduce novel safety and reliability risks, such as CoT-hijacking and...

Finite-Key Security Analysis of the Decoy-State BB84 QKD with Passive Measurement

The decoy-state Bennett-Brassard 1984 BB84 quantum key distribution QKD protocol is widely regarded as the de facto standard for practical implementations. On the receiver side, passive basis choice is attractive because it significantly reduces the need for random number generators and eliminate...

Processing Entangled Links into Secure Cryptographic Keys

The following paper presents a holistic approach to the processing of entangled links within entanglement based quantum key distribution protocols, whose security relies on the Bell inequality. We investigate the interactions, and the collective impact, of the whole processing chain on the final...

PT-2025-53006

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The Linux kernel contains a flaw within the Integrity Measurement Architecture IMA subsystem. Specifically, the ima match rules function incorrectly handles error codes returned by ima...

kernel: ima: Fix a potential integer overflow in ima_appraise_measurement

In the Linux kernel, the following vulnerability has been resolved: ima: Fix a potential integer overflow in imaappraisemeasurement When the ima-modsig is enabled, the rc passed to evmverifyxattr may be negative, which may cause the integer overflow problem...

kernel: ima: Fix potential memory leak in ima_init_crypto()

In the Linux kernel, the following vulnerability has been resolved: ima: Fix potential memory leak in imainitcrypto On failure to allocate the SHA1 tfm, IMA fails to initialize and exits without freeing the imaalgoarray. Add the missing kfree for imaalgoarray to avoid the potential memory leak...

Unity Linux 20.1070a Security Update: kernel (UTSA-2025-988820)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-988820 advisory. In the Linux kernel, the following vulnerability has been resolved: ima: Fix a potential integer overflow in imaappraisemeasurement When the ima-modsig is enabled, t...

Certified Randomness Amplification by Dynamically Probing Remote Random Quantum States

Cryptography depends on truly unpredictable numbers, but physical sources emit biased or correlated bits. Quantum mechanics enables the amplification of imperfect randomness into nearly perfect randomness, but prior demonstrations have required physically co-located, loophole-free Bell tests,...

Is Protective DNS Blocking the Wild West?

We perform a passive measurement study investigating how a Protective DNS service might perform in a Research & Education Network serving hundreds of member institutions. Utilizing freely-available DNS blocklists consisting of domain names deemed to be threats, we test hundreds of millions of...

Linux Distros Unpatched Vulnerability : CVE-2022-50577

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In the Linux kernel, the following vulnerability has been resolved: ima: Fix memory leak in imainodehash Commit f3cc6b25dcc5 ima: always measure and audit files...

SUSE CVE-2022-50577

In the Linux kernel, the following vulnerability has been resolved: ima: Fix memory leak in imainodehash Commit f3cc6b25dcc5 "ima: always measure and audit files in policy" lets measurement or audit happen even if the file digest cannot be calculated. As a result, iint-imahash could have been...

CVE-2022-50577

In the Linux kernel, the following vulnerability has been resolved: ima: Fix memory leak in imainodehash Commit f3cc6b25dcc5 "ima: always measure and audit files in policy" lets measurement or audit happen even if the file digest cannot be calculated. As a result, iint-imahash could have been...

UBUNTU-CVE-2022-50577

In the Linux kernel, the following vulnerability has been resolved: ima: Fix memory leak in imainodehash Commit f3cc6b25dcc5 "ima: always measure and audit files in policy" lets measurement or audit happen even if the file digest cannot be calculated. As a result, iint-imahash could have been...

CVE-2022-50577 ima: Fix memory leak in __ima_inode_hash()

In the Linux kernel, the following vulnerability has been resolved: ima: Fix memory leak in imainodehash Commit f3cc6b25dcc5 "ima: always measure and audit files in policy" lets measurement or audit happen even if the file digest cannot be calculated. As a result, iint-imahash could have been...

CVE-2022-50577 ima: Fix memory leak in __ima_inode_hash()

In the Linux kernel, the following vulnerability has been resolved: ima: Fix memory leak in imainodehash Commit f3cc6b25dcc5 "ima: always measure and audit files in policy" lets measurement or audit happen even if the file digest cannot be calculated. As a result, iint-imahash could have been...

CVE-2022-50577

CVE-2022-50577 involves a memory leak in the Linux kernel’s IMA path. The root cause was that __ima_inode_hash() could allocate ima_hash and then fail after ima_collect_measurement() returned an error, allowing a leaked temporary inode metadata structure. The patch adds a kfree() when the error f...

Linux Kernel Security Vulnerabilities

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that stems from the failure to free imahash memory when imacollectmeasurement returns an error, which could lead to a memory...

Intermittent File Encryption in Ransomware: Measurement, Modeling, and Detection

File encrypting ransomware increasingly employs intermittent encryption techniques, encrypting only parts of files to evade classical detection methods. These strategies, exemplified by ransomware families like BlackCat, complicate file structure based detection techniques due to diverse file...