GnuPG 1.4.16 fixes RSA key extraction via acoustic side channel

2013.12.18

Credit: Solar Designer

Risk: Medium

Local: No

Remote: Yes

CVE: CVE-2013-4576

CWE: CWE-255

CVSS Base Score: 2.1/10

Impact Subscore: 2.9/10

Exploitability Subscore: 3.9/10

Exploit range: Local

Attack complexity: Low

Authentication: No required

Confidentiality impact: Partial

Integrity impact: None

Availability impact: None

GnuPG 1.4.16 was released today with a curious security fix:

http://lists.gnupg.org/pipermail/gnupg-devel/2013-December/028102.html

 * Fixed the RSA Key Extraction via Low-Bandwidth Acoustic
   Cryptanalysis attack as described by Genkin, Shamir, and Tromer.
   See <http://www.cs.tau.ac.il/~tromer/acoustic/>.  [CVE-2013-4576]

Direct link to paper (8 MB; the website feels very slow at the moment):

http://www.cs.tau.ac.il/~tromer/papers/acoustic-20131218.pdf

Copy on SlideShare:

http://www.slideshare.net/daniel_bilar/acoustic-20131218

References:

http://lists.gnupg.org/pipermail/gnupg-devel/2013-December/028102.html

http://www.cs.tau.ac.il/~tromer/papers/acoustic-20131218.pdf

http://www.slideshare.net/daniel_bilar/acoustic-20131218

See this note in RAW Version

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GnuPG 1.4.16 fixes RSA key extraction via acoustic side channel

References:

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