EulerOS 2.0 SP2 : libgcrypt (EulerOS-SA-2019-1750)
Medium Nessus Plugin ID 126877
SynopsisThe remote EulerOS host is missing multiple security updates.
DescriptionAccording to the versions of the libgcrypt packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :
- 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.(CVE-2014-5270)
- libgcrypt before version 1.7.8 is vulnerable to a cache side-channel attack resulting into a complete break of RSA-1024 while using the left-to-right method for computing the sliding-window expansion. The same attack is believed to work on RSA-2048 with moderately more computation. This side-channel requires that attacker can run arbitrary software on the hardware where the private RSA key is used.(CVE-2017-7526)
Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
SolutionUpdate the affected libgcrypt packages.