Genkin, Shamir and Tromer discovered that RSA key material could be extracted by using the sound generated by the computer during the decryption of some chosen ciphertexts.

For the oldstable distribution (squeeze), this problem has been fixed in version 1.4.10-4+squeeze4. For the stable distribution (wheezy), this problem has been fixed in version 1.4.12-7+deb7u3. For the unstable distribution (sid), this problem has been fixed in version 1.4.15-3. We recommend that you upgrade your gnupg packages.

GnuPG is GNU's tool for secure communication and data storage. It can be used to encrypt data and to create digital signatures. It includes an advanced key management facility and is compliant with the proposed OpenPGP Internet standard as described in RFC2440.

gnupg on Debian Linux

This check tests the installed software version using the apt package manager.

• http://www.debian.org/security/2013/dsa-2821.html

---

Updated on 2015-03-25