Daily Archives: December 8, 2022

Advisories

CVE-2022-23476 (nokogiri)

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Nokogiri is an open source XML and HTML library for the Ruby programming language. Nokogiri `1.13.8` and `1.13.9` fail to check the return value from `xmlTextReaderExpand` in the method `Nokogiri::XML::Reader#attribute_hash`. This can lead to a null pointer exception when invalid markup is being parsed. For applications using `XML::Reader` to parse untrusted inputs, this may potentially be a vector for a denial of service attack. Users are advised to upgrade to Nokogiri `>= 1.13.10`. Users may be able to search their code for calls to either `XML::Reader#attributes` or `XML::Reader#attribute_hash` to determine if they are affected.

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News

Smashing Security podcast #301: AI chatbot or the start of Skynet? Eufy privacy, and hot desks

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An AI chatbot is causing a stir – both impressing and terrifying users in equal measure. A security researcher discovers that a “smart” cam that doesn’t use the internet is err.. using the internet. And university students revolt over under-the-belt surveillance.

All this and much more is discussed in the latest edition of the award-winning “Smashing Security” podcast by computer security veterans Graham Cluley and Carole Theriault, joined this week by Host Unknown’s Thom Langford.

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