Information disclosure in Gnupg Libgcrypt
CVE-2015-7511
Libgcrypt before 1.6.5 does not properly perform elliptic-point curve multiplication during decryption, which makes it easier for physically proximate attackers to extract ECDH keys by measuring electromagnetic emanations.
Vulnerability class: Information Disclosure
Published · last modified .
CVSS v3 metric
CVSS v3 base score 2.0 (Low). Vector: CVSS:3.0/AV:P/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.004 (36.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 36th percentile — 36.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
- Gnupg Libgcrypt
- Canonical Ubuntu Linux — versions 12.04, 14.04, 15.10
- Debian Linux — versions 7.0, 8.0
Weakness classification (CWE)
References
- www.debian.org/security/2016/dsa-3478 (vendor-advisory)
- www.ubuntu.com/usn/USN-2896-1 (vendor-advisory)
- security.gentoo.org/glsa/201610-04 (vendor-advisory)
- lists.gnupg.org/pipermail/gnupg-announce/2016q1/000384.html (Vendor Advisory, mailing-list)
- www.debian.org/security/2016/dsa-3474 (vendor-advisory)
- www.securityfocus.com/bid/83253 (vdb-entry)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.opensuse.org/opensuse-updates/2016-05/msg00027.html (vendor-advisory)
- www.cs.tau.ac.IL/~tromer/ecdh/
Frequently asked questions
- What is CVE-2015-7511?
- CVE-2015-7511 is a low-severity vulnerability in Gnupg Libgcrypt, classified under Information Disclosure. CVSS score: 2.0/10. Published 2016-04-19.
- How severe is CVE-2015-7511?
- Low severity. CVSS v3 base score is 2.0 out of 10.