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
02 Description
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
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 0.42% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 36.8% of scored records. A rank, not a probability.
- NVD base score
- 2.0 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.0/AV:P/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- Low. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2016-04-19 21:00Z10 YR AGO
- Last updated
- 2024-08-06 07:51Z2 YR AGO
- Reserved
- 2015-09-29
- Assigning CNA
- redhat
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- CWE-200Exposure of Sensitive Information to an Unauthorized ActorClass
- Data version
- 5.1
- Document digest
- 31905e6955f1c011ee79bbf614976f2de9e38f44835a6630f575598901a7f50b
05 Affected products
06 References
- www.debian.orgDSA-3478http://www.debian.org/security/2016/dsa-3478
- www.ubuntu.comUSN-2896-1http://www.ubuntu.com/usn/USN-2896-1
- security.gentoo.orgGLSA-201610-04https://security.gentoo.org/glsa/201610-04
- lists.gnupg.org[gnupg-announce] 20160209 [Announce] Libgcrypt 1.6.5 with security fix releasedhttps://lists.gnupg.org/pipermail/gnupg-announce/2016q1/000384.html
- www.debian.orgDSA-3474http://www.debian.org/security/2016/dsa-3474
- www.securityfocus.com83253http://www.securityfocus.com/bid/83253
- lists.fedoraproject.orgFEDORA-2016-83cd045bcchttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/W2IL4PAEICHGA2XMQYRY3MIWHM4GMPAG/
- lists.opensuse.orgopenSUSE-SU-2016:1227http://lists.opensuse.org/opensuse-updates/2016-05/msg00027.html
- www.cs.tau.ac.ilhttp://www.cs.tau.ac.IL/~tromer/ecdh/
07 Fixed in
Debian 12
- libgcrypt20 Fixed in 1.6.5-2
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- libgcrypt20 Fixed in 1.6.5-2
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- libgcrypt20 Fixed in 1.6.5-2
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 14.04 LTS
- libgcrypt11 Fixed in 1.5.3-2ubuntu4.3
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.