Ubuntu 14.04 LTS / 16.04 LTS / 17.10 : ruby1.9.1, ruby2.3 vulnerabilities (USN-3528-1)
High Nessus Plugin ID 105751
Synopsis
The remote Ubuntu host is missing one or more security-related patches.
Description
It was discovered that Ruby incorrectly handled certain terminal emulator escape sequences. An attacker could use this to execute arbitrary code via a crafted user name. This issue only affected Ubuntu 16.04 LTS and Ubuntu 17.10. (CVE-2017-10784)
It was discovered that Ruby incorrectly handled certain strings. An attacker could use this to cause a denial of service. This issue only affected Ubuntu 16.04 LTS and Ubuntu 17.10. (CVE-2017-14033)
It was discovered that Ruby incorrectly handled some generating JSON.
An attacker could use this to possible expose sensitive information.
This issue only affected Ubuntu 16.04 LTS and Ubuntu 17.10.
(CVE-2017-14064)
It was discovered that Ruby incorrectly handled certain inputs. An attacker could use this to execute arbitrary code. (CVE-2017-17790).
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.
Solution
Update the affected packages.