Information disclosure in Gnupg Libgcrypt
CVE-2014-5270
Libgcrypt before 1.5.4, as used in GnuPG and other products, does not properly perform ciphertext normalization and ciphertext randomization, which makes it easier for physically proximate attackers to conduct key-extraction attacks by leveraging the ability to collect voltage data from exposed metal, a different vector than CVE-2013-4576.
Vulnerability class: Information Disclosure
Published · last modified .
CVSS v2 metric
CVSS v2 base score 2.1 (Low). Vector: AV:L/AC:L/Au:N/C:P/I:N/A:N. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.005 (44.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 44th percentile — 44.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
- Gnupg Libgcrypt — versions 1.4.0, 1.4.3, 1.4.4
- Debian Linux — versions 7.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- lists.gnupg.org/pipermail/gnupg-announce/2014q3/000352.html (Vendor Advisory, mailing-list, Patch)
- www.debian.org/security/2014/dsa-3073 (vendor-advisory, Third Party Advisory)
- openwall.com/lists/oss-security/2014/08/16/2 (mailing-list, Mailing List, Third Party Advisory)
- www.cs.tau.ac.il/~tromer/handsoff/ (Technical Description)
- www.debian.org/security/2014/dsa-3024 (vendor-advisory)
Frequently asked questions
- What is CVE-2014-5270?
- CVE-2014-5270 is a vulnerability in Gnupg Libgcrypt, classified under Information Disclosure. Published 2014-10-10.
- Is CVE-2014-5270 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.