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Last updated: 4/24/2014

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Vulnerability Summary for CVE-2013-4576

Original release date: 12/20/2013
Last revised: 01/23/2014
Source: US-CERT/NIST

Overview

GnuPG 1.x before 1.4.16 generates RSA keys using sequences of introductions with certain patterns that introduce a side channel, which allows physically proximate attackers to extract RSA keys via a chosen-ciphertext attack and acoustic cryptanalysis during decryption. NOTE: applications are not typically expected to protect themselves from acoustic side-channel attacks, since this is arguably the responsibility of the physical device. Accordingly, issues of this type would not normally receive a CVE identifier. However, for this issue, the developer has specified a security policy in which GnuPG should offer side-channel resistance, and developer-specified security-policy violations are within the scope of CVE.

Impact

CVSS Severity (version 2.0):
CVSS v2 Base Score: 2.1 (LOW) (AV:L/AC:L/AU:N/C:P/I:N/A:N) (legend)
Impact Subscore: 2.9
Exploitability Subscore: 3.9
CVSS Version 2 Metrics:
Access Vector: Locally exploitable
Access Complexity: Low
Authentication: Not required to exploit
Impact Type: Allows unauthorized disclosure of information

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External Source: MISC
Name: http://www.tau.ac.il/~tromer/papers/acoustic-20131218.pdf
External Source: DEBIAN
Name: DSA-2821
External Source: BID
Name: 64424
External Source: MLIST
Name: [oss-security] 20131218 GnuPG 1.4.16 fixes RSA key extraction via acoustic side channel (CVE-2013-4576)
External Source: SECTRACK
Name: 1029513
External Source: REDHAT
Name: RHSA-2014:0016
External Source: MLIST
Name: [oss-security] 20131218 Re: GnuPG 1.4.16 fixes RSA key extraction via acoustic side channel (CVE-2013-4576)
External Source: MISC
Name: http://www.cs.tau.ac.il/~tromer/acoustic/
External Source: UBUNTU
Name: USN-2059-1
External Source: XF
Name: gunpg-cve20134576-info-disclosure(89846)
External Source: MLIST
Name: [gnupg-devel] 20131218 [Announce] [security fix] GnuPG 1.4.16 released
Type: Advisory; Patch Information
External Source: OSVDB
Name: 101170

Technical Details

Vulnerability Type (View All)