Information disclosure in GNU Gnupg
CVE-2014-3591
Libgcrypt before 1.6.3 and GnuPG before 1.4.19 does not implement ciphertext blinding for Elgamal decryption, which allows physically proximate attackers to obtain the server's private key by determining factors using crafted ciphertext and the fluctuations in the electromagnetic field during multiplication.
Vulnerability class: Information Disclosure
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.2 (Medium). Vector: CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.006 (48.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 48th percentile — 48.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: +0.000
Affected products
- GNU Gnupg — versions before 1.4.19
- GNU Libgcrypt — versions before 1.6.3
- Gnupg
- Gnupg Libgcrypt
- Debian Linux — versions 7.0, 8.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.cs.tau.ac.il/~tromer/radioexp/ (Third Party Advisory)
- lists.gnupg.org/pipermail/gnupg-announce/2015q1/000363.html (Patch, Release Notes, Vendor Advisory)
- lists.gnupg.org/pipermail/gnupg-announce/2015q1/000364.html (Patch, Vendor Advisory)
- www.debian.org/security/2015/dsa-3184 (Third Party Advisory)
- www.debian.org/security/2015/dsa-3185 (Third Party Advisory)
Frequently asked questions
- What is CVE-2014-3591?
- CVE-2014-3591 is a medium-severity vulnerability in GNU Gnupg, classified under Information Disclosure. CVSS score: 4.2/10. Published 2019-11-29.
- How severe is CVE-2014-3591?
- Medium severity. CVSS v3 base score is 4.2 out of 10.
- Is CVE-2014-3591 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.