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  Learn more

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Home / GitHub Security Lab / Page 7

GitHub Security Lab

Ubuntu apport TOCTOU security vulnerability (CVE-2019-7307)

This is the second post in our series about Ubuntu’s crash reporting system. We’ll review CVE-2019-7307, a TOCTOU vulnerability that enables a local attacker to include the contents of any file on the system in a crash report.

Whoopsie-daisy: Chaining accidental features of Ubuntu’s crash reporter to get Local Privilege Escalation

This post summarizes several security vulnerabilities in Ubuntu’s crash reporting system: CVE-2019-7307, CVE-2019-11476, CVE-2019-11481, CVE-2019-11484, CVE-2019-15790. When chained together, they allow an unprivileged user to read arbitrary files on the system.

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