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Debian Security Advisory DSA 3793-1 (shadow - security update)
Information
Severity
Severity
Family
Family
CVSSv2 Base
CVSSv2 Base
CVSSv2 Vector
CVSSv2 Vector
Solution Type
Solution Type
Created
Created
Modified
Modified
Summary
Several vulnerabilities were discovered in the shadow suite. The Common Vulnerabilities and Exposures project identifies the following problems: CVE-2016-6252 An integer overflow vulnerability was discovered, potentially allowing a local user to escalate privileges via crafted input to the newuidmap utility. CVE-2017-2616 Tobias Stoeckmann discovered that su does not properly handle clearing a child PID. A local attacker can take advantage of this flaw to send SIGKILL to other processes with root privileges, resulting in denial of service.
Affected Software
Affected Software
shadow on Debian Linux
Detection Method
Detection Method
This check tests the installed software version using the apt package manager.
Solution
Solution
For the stable distribution (jessie), these problems have been fixed in version 1:4.2-3+deb8u3. We recommend that you upgrade your shadow packages.