CVE-2018-0495

Published: 13 June 2018

Libgcrypt before 1.7.10 and 1.8.x before 1.8.3 allows a memory-cache side-channel attack on ECDSA signatures that can be mitigated through the use of blinding during the signing process in the _gcry_ecc_ecdsa_sign function in cipher/ecc-ecdsa.c, aka the Return Of the Hidden Number Problem or ROHNP. To discover an ECDSA key, the attacker needs access to either the local machine or a different virtual machine on the same physical host.

Priority

CVSS 3 base score: 4.7

Status

Package	Release	Status
libgcrypt11 Launchpad, Ubuntu, Debian	Upstream	Needs triage



	Ubuntu 18.04 LTS (Bionic Beaver)	Does not exist
	Ubuntu 16.04 ESM (Xenial Xerus)	Does not exist
	Ubuntu 14.04 ESM (Trusty Tahr)	Released (1.5.3-2ubuntu4.6)
libgcrypt20 Launchpad, Ubuntu, Debian	Upstream	Released (1.7.10,1.8.3)



	Ubuntu 18.04 LTS (Bionic Beaver)	Released (1.8.1-4ubuntu1.1)
	Ubuntu 16.04 ESM (Xenial Xerus)	Released (1.6.5-2ubuntu0.5)
	Ubuntu 14.04 ESM (Trusty Tahr)	Does not exist (trusty was needed)
	Patches: Upstream: https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git;a=commit;h=9010d1576e278a4274ad3f4aa15776c28f6ba965
nss Launchpad, Ubuntu, Debian	Upstream	Released (3.38)



	Ubuntu 18.04 LTS (Bionic Beaver)	Released (2:3.35-2ubuntu2.1)
	Ubuntu 16.04 ESM (Xenial Xerus)	Released (2:3.28.4-0ubuntu0.16.04.4)
	Ubuntu 14.04 ESM (Trusty Tahr)	Released (2:3.28.4-0ubuntu0.14.04.4)
	Patches: Upstream: https://hg.mozilla.org/projects/nss/rev/ca18ca4ba00d
openssl Launchpad, Ubuntu, Debian	Upstream	Needs triage



	Ubuntu 18.04 LTS (Bionic Beaver)	Released (1.1.0g-2ubuntu4.1)
	Ubuntu 16.04 ESM (Xenial Xerus)	Released (1.0.2g-1ubuntu4.13)
	Ubuntu 14.04 ESM (Trusty Tahr)	Released (1.0.1f-1ubuntu2.26)
	Patches: Upstream: https://git.openssl.org/?p=openssl.git;a=commit;h=949ff36623eafc3523a9f91784992965018ffb05 (1.0.2) Upstream: https://git.openssl.org/?p=openssl.git;a=commit;h=0c27d793745c7837b13646302b6890a556b7017a (1.1)
openssl098 Launchpad, Ubuntu, Debian	Upstream	Needs triage



	Ubuntu 18.04 LTS (Bionic Beaver)	Does not exist
	Ubuntu 16.04 ESM (Xenial Xerus)	Does not exist
	Ubuntu 14.04 ESM (Trusty Tahr)	Does not exist (trusty was needs-triage)
openssl1.0 Launchpad, Ubuntu, Debian	Upstream	Needs triage



	Ubuntu 18.04 LTS (Bionic Beaver)	Released (1.0.2n-1ubuntu5.1)
	Ubuntu 16.04 ESM (Xenial Xerus)	Does not exist
	Ubuntu 14.04 ESM (Trusty Tahr)	Does not exist

References

Bugs

Join the discussion

Canonical is offering Extended Security Maintenance

Canonical is offering Ubuntu Extended Security Maintenance (ESM) for security fixes and essential packages.

Find out more about ESM ›