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Ubuntu 16.04 LTS / 18.04 LTS / 19.04 / 19.10 : Ruby vulnerabilities (USN-4201-1)

Description

It was discovered that Ruby incorrectly handled certain files. An attacker could possibly use this issue to pass path matching what can lead to an unauthorized access. (CVE-2019-15845) It was discovered that Ruby incorrectly handled certain regular expressions. An attacker could use this issue to cause a denial of service. (CVE-2019-16201) It was discovered that Ruby incorrectly handled certain HTTP headers. An attacker could possibly use this issue to execute arbitrary code. (CVE-2019-16254) It was discovered that Ruby incorrectly handled certain inputs. An attacker could possibly use this issue to execute arbitrary code. (CVE-2019-16255). Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.


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