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Debian Security Advisory DSA 3568-1 (libtasn1-6 - security update)
Information
Severity
Severity
Family
Family
CVSSv2 Base
CVSSv2 Base
CVSSv2 Vector
CVSSv2 Vector
Solution Type
Solution Type
Created
Created
Modified
Modified
Summary
Pascal Cuoq and Miod Vallat discovered that Libtasn1, a library to manage ASN.1 structures, does not correctly handle certain malformed DER certificates. A remote attacker can take advantage of this flaw to cause an application using the Libtasn1 library to hang, resulting in a denial of service.
Affected Software
Affected Software
libtasn1-6 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), this problem has been fixed in version 4.2-3+deb8u2. For the testing distribution (stretch), this problem has been fixed in version 4.8-1. For the unstable distribution (sid), this problem has been fixed in version 4.8-1. We recommend that you upgrade your libtasn1-6 packages.