Package : ruby-haml Version : 4.0.5-2+deb8u1 CVE ID : CVE-2017-1002201 In haml, when using user input to perform tasks on the server, characters like < > " ' must be escaped properly. In this case, the ' character was missed. An attacker can manipulate the input to introduce additional attributes, potentially executing code. For Debian 8 "Jessie", this problem has been fixed in version 4.0.5-2+deb8u1. We recommend that you upgrade your ruby-haml packages. Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS
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