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.

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Debian Security Advisory DSA-2821-1                   This email address is being protected from spambots. You need JavaScript enabled to view it.
http://www.debian.org/security/                           Thijs Kinkhorst
December 18, 2013                      http://www.debian.org/security/faq
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Package        : gnupg
Vulnerability  : side channel attack
Problem type   : remote
Debian-specific: no
CVE ID         : CVE-2013-4576

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 1.4.15-2.

We recommend that you upgrade your gnupg packages.

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: http://www.debian.org/security/

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