Packet Storm

Race conditions arise when multiple threads attempt to access a shared resource without proper synchronization, often leading to vulnerabilities such as concurrent use-after-free. To mitigate their occurrence, operating systems rely on synchronization primitives such as mutexes, spinlocks, etc. In this paper, the authors present GhostRace, the first security analysis of these primitives on speculatively executed code paths. Their key finding is that all the common synchronization primitives can be microarchitecturally bypassed on speculative paths, turning all architecturally race-free critical regions into Speculative Race Conditions (SRCs).

In this whitepaper, the authors introduce the first model-stealing attack that extracts precise, nontrivial information from black-box production language models like OpenAI's ChatGPT or Google's PaLM-2. Specifically, their attack recovers the embedding projection layer (up to symmetries) of a transformer model, given typical API access. For under $20 USD, their attack extracts the entire projection matrix of OpenAI's ada and babbage language models. They thereby confirm, for the first time, that these black-box models have a hidden dimension of 1024 and 2048, respectively. They also recover the exact hidden dimension size of the gpt-3.5-turbo model, and estimate it would cost under $2,000 in queries to recover the entire projection matrix. They conclude with potential defenses and mitigations, and discuss the implications of possible future work that could extend this attack.

Ubuntu Security Notice 6663-2 - USN-6663-1 provided a security update for OpenSSL. This update provides the corresponding update for Ubuntu 16.04 LTS. As a security improvement, this update prevents OpenSSL from returning an error when detecting wrong padding in PKCS#1 v1.5 RSA, to prevent its use in possible Bleichenbacher timing attacks.

Client Details System version 1.0 suffers from a remote SQL injection vulnerability.

MetaFox versions 5.1.8 and below suffer from a remote shell upload vulnerability.

Ubuntu Security Notice 6692-1 - It was discovered that Gson incorrectly handled deserialization of untrusted input data. If a user or an automated system were tricked into opening a specially crafted input file, a remote attacker could possibly use this issue to cause a denial of service.

Cisco Firepower Management Center suffers from an authenticated remote command execution vulnerability. Many versions spanning the 7.x.x.x and 6.x.x.x branches are affected.

fabric is an open-source framework for augmenting humans using AI. This does not have an official release yet but should be interesting to our readers.

Ubuntu Security Notice 6691-1 - It was discovered that OVN incorrectly enabled OVS Bidirectional Forwarding Detection on logical ports. A remote attacker could possibly use this issue to disrupt traffic.

SnipeIT version 6.2.1 suffers from a persistent cross site scripting vulnerability.