#ios

When computing a shared secret or point multiplication on the NIST P-256 curve using a public key with an X coordinate of zero, an error is returned from the library, and an invalid unreduced value is written to the output buffer. This may be leveraged by an attacker to cause an error scenario, resulting in a limited denial of service for an individual user. The scope of impact cannot extend to other components.

Malicious builds and wider infrastructural compromise were worst-case scenarios

IBM PowerVM VIOS 3.1 could allow a remote attacker to tamper with system configuration or cause a denial of service. IBM X-Force ID: 230956.

New web targets for the discerning hacker

sqclass.cpp in Squirrel through 2.2.5 and 3.x through 3.1 allows an out-of-bounds read (in the core interpreter) that can lead to Code Execution. If a victim executes an attacker-controlled squirrel script, it is possible for the attacker to break out of the squirrel script sandbox even if all dangerous functionality such as File System functions has been disabled. An attacker might abuse this bug to target (for example) Cloud services that allow customization via SquirrelScripts, or distribute malware through video games that embed a Squirrel Engine.

In zulip before 1.3.12, bot API keys were accessible to other users in the same realm.

Our security teams around the world focus on identifying and mitigating security issues as soon as possible while minimizing customer disruption. One of the challenges of a traditional security update is ensuring customers apply the protections promptly. We recently discussed the work that goes into these updates in The Anatomy of a Security update.  Cloud … Anatomy of a Cloud-Service Security Update Read More »

Our security teams around the world focus on identifying and mitigating security issues as soon as possible while minimizing customer disruption. One of the challenges of a traditional security update is ensuring customers apply the protections promptly. We recently discussed the work that goes into these updates in The Anatomy of a Security update.

A path traversal vulnerability exists within GoAnywhere MFT before 6.8.3 that utilize self-registration for the GoAnywhere Web Client. This vulnerability could potentially allow an external user who self-registers with a specific username and/or profile information to gain access to files at a higher directory level than intended.

Ahead of their Black Hat USA talk in August, Simon Pavitt and Stephen Dewsnip explain the value of helping people practice cyber defense via a "malicious floorwalker" exercise.