Information Exposure The advisory has been revoked - it doesn't affect any version of package libgcrypt20 (opens in a new tab)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UBUNTU1904-LIBGCRYPT20-624992
- published19 Apr 2016
- disclosed19 Apr 2016
Introduced: 19 Apr 2016
CVE-2015-7511 (opens in a new tab)Amendment
The Ubuntu security team deemed this advisory irrelevant for Ubuntu:19.04.
NVD Description
Note: Versions mentioned in the description apply only to the upstream libgcrypt20 package and not the libgcrypt20 package as distributed by Ubuntu.
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.
References
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2015-7511
- http://www.debian.org/security/2016/dsa-3474
- http://www.debian.org/security/2016/dsa-3478
- https://security-tracker.debian.org/tracker/CVE-2015-7511
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/W2IL4PAEICHGA2XMQYRY3MIWHM4GMPAG/
- https://security.gentoo.org/glsa/201610-04
- https://lists.gnupg.org/pipermail/gnupg-announce/2016q1/000384.html
- http://www.cs.tau.ac.IL/~tromer/ecdh/
- http://lists.opensuse.org/opensuse-updates/2016-05/msg00027.html
- http://www.securityfocus.com/bid/83253
- http://www.ubuntu.com/usn/USN-2896-1
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/W2IL4PAEICHGA2XMQYRY3MIWHM4GMPAG/