CVE-2015-7511 Information disclosure in n/a

Low 2.0 Published Updated

Physically proximate attackers can extract ECDH keys by measuring electromagnetic emanations during decryption in Libgcrypt.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
Not needed
Fix
Available

What is CVE-2015-7511?

CVE-2015-7511 is a low-severity vulnerability in Canonical Ubuntu Linux, published on 19 Apr 2016. It can only be exploited from the same machine or local network, with no action from the victim.

Official 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 electromagnetic emanations.

Weakness: CWE-200

Which versions are affected by CVE-2015-7511?

It affects 3 products.

Linux distribution packages (8)
libgcrypt SUSE:Linux Enterprise Desktop 12All versions1.6.1-16.27.1
libgcrypt SUSE:Linux Enterprise Desktop 12 SP1All versions1.6.1-16.27.1
libgcrypt SUSE:Linux Enterprise Server 12All versions1.6.1-16.27.1
libgcrypt SUSE:Linux Enterprise Server 12 SP1All versions1.6.1-16.27.1
libgcrypt SUSE:Linux Enterprise Server for SAP Applications 12All versions1.6.1-16.27.1
libgcrypt SUSE:Linux Enterprise Server for SAP Applications 12 SP1All versions1.6.1-16.27.1
libgcrypt SUSE:Linux Enterprise Software Development Kit 12All versions1.6.1-16.27.1
libgcrypt SUSE:Linux Enterprise Software Development Kit 12 SP1All versions1.6.1-16.27.1

Products include Canonical Ubuntu Linux, Debian Debian Linux, Gnupg Libgcrypt.

How do I fix CVE-2015-7511?

Upgrade to a fixed version.

Is CVE-2015-7511 being exploited?

There is no known exploitation of CVE-2015-7511 in the wild and no public exploit code.

All Canonical Ubuntu Linux vulnerabilities

Sources

Also known as DEBIAN-CVE-2015-7511, DSA-3474-1, DSA-3478-1, GHSA-2c62-8p8p-hh5w, MGASA-2016-0072, SUSE-SU-2016:1089-1 and 2 more.

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