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Microsoft Warns Workaround Preventing Lenovo ThinkPad BSOD Increases Risk

著者: EditorDavid
2020年9月20日 00:34
An anonymous reader quotes ZDNet: Microsoft has finally published a support document detailing its workaround for the August 2020 Patch Tuesday update for Windows 10 version 2004 that caused blue screens of deaths (BSODs) on newer Lenovo ThinkPads and broke Windows Hello biometric login... It's the same as Lenovo's earlier workaround but comes with a stern security warning from Microsoft. Microsoft also explains how Lenovo Vantage violates Microsoft's security controls in Windows. Users might bypass the BSOD screen, but they are endangering their computers by implementing the workaround, according to Microsoft. The workaround also affects some of Microsoft's latest security features for Windows 10, such as Hypervisor Code Integrity for shielding the OS from malicious drivers, as well as Windows Defender Credential Guard. "This workaround may make a computer or a network more vulnerable to attack by malicious users or by malicious software such as viruses. We do not recommend this workaround but are providing this information so that you can implement this workaround at your own discretion. Use this workaround at your own risk," Microsoft states.... The good news for affected ThinkPad users is that Microsoft and Lenovo are working together on a fix. However, Microsoft hasn't said when that will be available.

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Academics Find Crypto Bugs in 306 Popular Android Apps, None Get Patched

著者: msmash
2020年9月10日 00:42
A team of academics from Columbia University has developed a custom tool to dynamically analyze Android applications and see if they're using cryptographic code in an unsafe way. From a report: Named CRYLOGGER, the tool was used to test 1,780 Android applications, representing the most popular apps across 33 different Play Store categories, in September and October 2019. Researchers say the tool, which checked for 26 basic cryptography rules (mentioned in the source story), found bugs in 306 Android applications. Some apps broke one rule, while others broke multiple.

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Single-line Software Bug Causes Fledgling YAM Cryptocurrency To Implode Just Two Days After Launch

著者: msmash
2020年8月14日 08:01
A two-day-old decentralized cryptocurrency called YAM collapsed this week after its creators revealed that a software bug had effectively vetoed human governance. From a report: "At approximately 6PM UTC, on Wednesday, August 12, we discovered a bug in the YAM rebasing contract that would mint far more YAM than intended to sell to the Uniswap YAM/yCRV pool, sending a large amount of excess YAM to the protocol reserve," the YAM project explained in a post on Thursday. "Given YAM's governance module, this bug would render it impossible to reach quorum, meaning no governance action would be possible and funds in the treasury would be locked." The bug followed from this line of code... totalSupply = initSupply.mul(yamsScalingFactor); ...which was supposed to be⦠totalSupply = initSupply.mul(yamsScalingFactor).div(BASE); YAM, a decentralized finance experiment, implements a governance system (for making protocol changes) based on supposed smart contracts that allocates votes based on assets. [...] The code flaw locked up about $750,000 worth of Curve (yCRV) tokens in the YAM treasury, assets intended to serve as a reserve currency to support the value of YAM tokens.

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