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Debian Security Advisory DSA 3889-1 (libffi - security update)
Information
Severity
Severity
Family
Family
CVSSv2 Base
CVSSv2 Base
CVSSv2 Vector
CVSSv2 Vector
Solution Type
Solution Type
Created
Created
Modified
Modified
Summary
libffi, a library used to call code written in one language from code written in a different language, was enforcing an executable stack on the i386 architecture. While this might not be considered a vulnerability by itself, this could be leveraged when exploiting other vulnerabilities, like for example the stack clash class of vulnerabilities discovered by Qualys Research Labs.
Affected Software
Affected Software
libffi on Debian Linux
Detection Method
Detection Method
This check tests the installed software version using the apt package manager.
Solution
Solution
For the oldstable distribution (jessie), this problem has been fixed in version 3.1-2+deb8u1. For the stable distribution (stretch), this problem has been fixed in version 3.2.1-4. For the testing distribution (buster), this problem has been fixed in version 3.2.1-4. For the unstable distribution (sid), this problem has been fixed in version 3.2.1-4. We recommend that you upgrade your libffi packages.