What’s Vulnerable › Vulnerabilities

CVE-2013-4576

• Severity: low (CVSS 2.1 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2013-12-20 · updated 2026-06-16
• Weakness: CWE-255

Description

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.

Affected products

• GnuPG: through 1.4.15; 1.0.0, 1.0.1, 1.0.2, 1.0.3, 1.0.4, 1.0.5 (+34)

References

• http://lists.gnupg.org/pipermail/gnupg-devel/2013-December/028102.html
• http://osvdb.org/101170
• http://rhn.redhat.com/errata/RHSA-2014-0016.html
• http://seclists.org/oss-sec/2013/q4/520
• http://seclists.org/oss-sec/2013/q4/523
• http://www.cs.tau.ac.il/~tromer/acoustic/
• http://www.debian.org/security/2013/dsa-2821
• http://www.securityfocus.com/bid/64424
• http://www.securitytracker.com/id/1029513
• http://www.tau.ac.il/~tromer/papers/acoustic-20131218.pdf
• http://www.ubuntu.com/usn/USN-2059-1
• https://exchange.xforce.ibmcloud.com/vulnerabilities/89846

Get alerted when CVE-2013-4576 or the next vulnerability affects your stack